Gastroenterology Abbreviations

This list collects 347 gastroenterology abbreviations — digestive system terms used in gastroenterology notes, endoscopy reports and liver clinics. Every entry shows the full form and a plain-English meaning. One abbreviation can appear in several specialty lists when it is genuinely used in more than one area, and abbreviations with more than one common meaning get a row for each meaning. Terms flagged ⚠ Error-prone are on recognised error-prone lists: write them out in full wherever possible.

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Abbreviation	Full form	What it means	Used in
5'-NT	5-prime nucleotidase	Liver enzyme checked alongside alkaline phosphatase	Laboratory Gastroenterology
5-HIAA	5-hydroxyindoleacetic acid	Urine test used for carcinoid syndrome	Laboratory Endocrinology Gastroenterology
acholic stool	acholic stools (pale sign)	Pale stools suggesting blocked bile flow	Pediatrics Gastroenterology
ACLF	acute-on-chronic liver failure	Sudden worsening in long-term liver disease	Gastroenterology Emergency & Critical Care
acrodermatitis	acrodermatitis enteropathica (zinc)	Zinc deficiency rash and diarrhea disorder	Pediatrics Gastroenterology
AdV-F	enteric adenovirus	Gut adenovirus types causing diarrhea	Infectious Disease Gastroenterology Laboratory
AFLP	acute fatty liver of pregnancy	Rare liver failure of late pregnancy	Obstetrics & Gynecology Gastroenterology Emergency & Critical Care
AFP	alpha-fetoprotein	Protein marker for certain liver and germ cell tumours	Laboratory Hematology & Oncology Gastroenterology Obstetrics & Gynecology
AGB	adjustable gastric band	Weight-loss operation placing a band around the stomach	Surgery Gastroenterology
AIH	autoimmune hepatitis	Liver inflammation caused by the immune system	Gastroenterology
AIMS65	AIMS65 score	Upper GI bleed mortality score	Gastroenterology Emergency & Critical Care
AIN	anal intraepithelial neoplasia	Precancerous anal change	Gastroenterology Obstetrics & Gynecology
Alb	albumin	Main protein made by the liver, measured in blood	Laboratory Gastroenterology
ALBI	albumin-bilirubin grade	Score grading liver function from two blood tests	Gastroenterology Laboratory
ALD	alcoholic liver disease	Liver damage caused by alcohol	Gastroenterology
ALF	acute liver failure	Sudden severe liver failure	Gastroenterology Emergency & Critical Care
ALP	alkaline phosphatase	Enzyme related to liver and bone, measured in blood	Laboratory Gastroenterology
ALT	alanine aminotransferase	Liver enzyme measured in blood	Laboratory Gastroenterology
AM child	abdominal migraine (childhood)	Episodic stomach pain migraine equivalent	Pediatrics Gastroenterology Neurology
AMA	antimitochondrial antibody	Antibody strongly linked to primary biliary cholangitis	Laboratory Gastroenterology
anti-HAV	hepatitis A antibody	Marker of hepatitis A immunity	Laboratory Infectious Disease Gastroenterology
anti-HCV	hepatitis C antibody	Screening marker for hepatitis C exposure	Laboratory Infectious Disease Gastroenterology
anti-SMA	anti-smooth muscle antibody	Autoimmune hepatitis antibody	Laboratory Gastroenterology
Anti-tTG	tissue transglutaminase antibody	Blood antibody test for coeliac disease	Gastroenterology Laboratory
AP	acute pancreatitis	Sudden inflammation of the pancreas	Gastroenterology Emergency & Critical Care
APACHE pancreas	APACHE II in pancreatitis	General severity score applied to pancreatitis	Gastroenterology Emergency & Critical Care
APC	adenomatous polyposis coli gene	Gene mutated in familial colon polyps and cancer	Laboratory Hematology & Oncology Gastroenterology
apple peel	apple peel atresia (bowel)	Spiral bowel deformity with atresia	Pediatrics Gastroenterology Surgery
Appy	appendicectomy	Operation to remove the appendix	Gastroenterology Surgery
APRI	AST to platelet ratio index	Blood-based score estimating liver scarring	Gastroenterology Laboratory
ASMA	smooth muscle antibody	Antibody seen in autoimmune hepatitis	Laboratory Gastroenterology
AST	aspartate aminotransferase	Liver and muscle enzyme measured in blood	Laboratory Gastroenterology
asterixis	asterixis (finding)	Flapping lapse of posture — finding	Neurology Gastroenterology
AstV	astrovirus	Diarrhea-causing virus	Infectious Disease Gastroenterology Laboratory
Atlanta	revised Atlanta classification	Standard pancreatitis severity classification	Gastroenterology
AXR	abdominal X-ray	Imaging of the abdomen with X-rays	Radiology & Imaging Gastroenterology
band removal	gastric band removal	Removing an adjustable gastric band	Surgery Gastroenterology
bare area	bare area (liver anatomy)	Liver patch without peritoneal cover	Gastroenterology
Bili	bilirubin	Yellow pigment measured in blood, related to liver function	Laboratory Gastroenterology
biliary atresia	biliary atresia (diagnosis)	Blocked bile ducts of infancy — diagnosis	Pediatrics Gastroenterology Surgery
BISAP	Bedside Index of Severity in Acute Pancreatitis	Pancreatitis severity score	Gastroenterology Emergency & Critical Care
BM	bowel movement	Passing stool	Nursing Gastroenterology
bolus feed	bolus feeding (tube)	Intermittent larger-volume tube feeds	Nursing Gastroenterology
Bowel prep	bowel preparation	Emptying the colon before a procedure or scan	Gastroenterology Nursing
BRAT diet	bananas rice applesauce toast diet	Bland diet historically used for diarrhea	Nursing Gastroenterology Pediatrics
BRTO	balloon-occluded retrograde transvenous obliteration	Vein procedure treating stomach varices	Radiology & Imaging Gastroenterology
BS	bowel sounds	Sounds made by movement in the intestines	Vitals & Assessment Gastroenterology
button battery	button battery ingestion (emergency)	Swallowed battery burning the food pipe — emergency	Pediatrics Gastroenterology Emergency & Critical Care Surgery
C. diff	Clostridioides difficile	Bacterium causing severe diarrhoea, often after antibiotics	Laboratory Infectious Disease Gastroenterology
C. diff precautions	Clostridioides difficile precautions	Soap-and-water and sporicidal cleaning precautions	Nursing Infectious Disease Gastroenterology
C. diff toxin	Clostridioides difficile toxin assay	Stool test for C. difficile infection	Laboratory Gastroenterology Infectious Disease
CA 19-9	cancer antigen 19-9	Tumour marker associated with pancreatic and bile conditions	Laboratory Hematology & Oncology Gastroenterology
CA 72-4	cancer antigen 72-4	Tumor marker sometimes used in stomach cancer	Laboratory Hematology & Oncology Gastroenterology
Calprotectin	faecal calprotectin	Stool test marker of gut inflammation	Gastroenterology Laboratory
CAP	controlled attenuation parameter	Fat-in-liver measure from elastography	Gastroenterology Radiology & Imaging
CAPOX	capecitabine oxaliplatin	Colon cancer combination, also called XELOX	Hematology & Oncology Prescription & Medication Orders Gastroenterology
Carcinoid	carcinoid tumour	Slow-growing hormone-producing tumour, usually in gut	Endocrinology Gastroenterology Hematology & Oncology
caudate lobe	caudate lobe (liver)	Small back lobe of the liver	Gastroenterology Radiology & Imaging
CBD	common bile duct	Main tube carrying bile to the intestine	Gastroenterology
CBD anatomy	common bile duct (anatomy)	Main bile channel to the duodenum — anatomy	Gastroenterology
CD	Crohn's disease	Inflammatory disease affecting any part of the gut	Gastroenterology
CDI	Clostridioides difficile infection	Bowel infection with the C. difficile bacterium	Infectious Disease Gastroenterology
CEA	carcinoembryonic antigen	Tumour marker measured in blood	Laboratory Hematology & Oncology Gastroenterology
celiac	celiac artery (trunk)	First belly branch feeding liver, stomach and spleen	Gastroenterology Radiology & Imaging
celiac child	celiac disease (childhood)	Gluten-triggered bowel disease — childhood	Pediatrics Gastroenterology
CHA	common hepatic artery	Artery to the liver	Gastroenterology Radiology & Imaging
Chole	cholecystectomy	Operation to remove the gallbladder	Gastroenterology Surgery
choledochal	choledochal cyst (bile duct)	Bile duct cystic widening	Pediatrics Gastroenterology Surgery Radiology & Imaging
CLD	clear liquid diet	Only transparent liquids allowed as food	Nursing Gastroenterology
CLIF-C	Chronic Liver Failure Consortium score	Acute-on-chronic liver failure scoring	Gastroenterology Emergency & Critical Care
CMP	comprehensive metabolic panel	Broader blood panel including liver tests	Laboratory Renal & Nephrology Gastroenterology
CMV colitis	cytomegalovirus colitis	CMV infection of the colon in immunocompromised patients	Infectious Disease Gastroenterology
coin ingestion	coin ingestion (foreign body)	Swallowed coin	Pediatrics Gastroenterology Emergency & Critical Care Radiology & Imaging
Colo	colonoscopy	Camera examination of the large intestine	Gastroenterology Surgery
constipation child	functional constipation (childhood)	Common childhood stool withholding pattern	Pediatrics Gastroenterology
continuous feed	continuous tube feeding	Slow round-the-clock tube feeds	Nursing Gastroenterology
CP	chronic pancreatitis	Long-term inflammation and damage of the pancreas	Gastroenterology
CRC	colorectal cancer	Cancer of the colon or rectum	Hematology & Oncology Gastroenterology
CTC	computed tomography colonography	CT imaging of the colon, a virtual colonoscopy	Radiology & Imaging Gastroenterology
CTP	Child-Turcotte-Pugh score	Score grading liver disease severity	Gastroenterology
CTSI	CT Severity Index (Balthazar)	Imaging severity score for pancreatitis	Gastroenterology Radiology & Imaging
Cullen	Cullen's sign	Bruising around the navel suggesting internal bleeding	Gastroenterology Emergency & Critical Care
currant jelly	currant jelly stool (sign)	Bloody mucus stool of intussusception	Pediatrics Gastroenterology Emergency & Critical Care
CVS	cyclic vomiting syndrome (episodes)	Recurrent intense vomiting episodes with well intervals	Pediatrics Gastroenterology Neurology Emergency & Critical Care
cystic art	cystic artery	Small artery to the gallbladder	Gastroenterology Surgery
D-xylose	D-xylose absorption test	Absorption test for intestinal malabsorption	Laboratory Gastroenterology
DAA	direct-acting antiviral	Hepatitis C cure drug class	Infectious Disease Prescription & Medication Orders Gastroenterology
DAT	diet as tolerated	Food allowed as the patient can manage it	Nursing Gastroenterology
DDLT	deceased donor liver transplant	Liver transplant from a deceased donor	Surgery Gastroenterology
DGP	deamidated gliadin peptide	Celiac disease antibody target	Laboratory Gastroenterology
DILI	drug-induced liver injury	Liver damage caused by a medicine	Gastroenterology Prescription & Medication Orders
DIOS	distal intestinal obstruction syndrome (CF)	Bowel blockage in cystic fibrosis	Pediatrics Gastroenterology Respiratory
DQ2	HLA-DQ2	Gene marker carried by most people with coeliac disease	Gastroenterology Laboratory
Duhamel	Duhamel procedure (pull-through)	Side-join Hirschsprung operation	Pediatrics Gastroenterology Surgery
duodenal atresia	duodenal atresia (diagnosis)	Blocked first bowel segment at birth — diagnosis	Pediatrics Gastroenterology Surgery
duodenal bulb	duodenal bulb (anatomy)	First widened part of the duodenum	Gastroenterology
EA	esophageal atresia	Birth defect where the food pipe does not connect to the stomach	Pediatrics Surgery Gastroenterology
EGD	esophagogastroduodenoscopy	Camera examination of food pipe, stomach and upper intestine	Gastroenterology Surgery
EGID	eosinophilic gastrointestinal disorders	Allergic gut inflammation family	Pediatrics Gastroenterology
EHEC	enterohemorrhagic Escherichia coli	Type of E. coli that can cause bloody diarrhoea and kidney complications	Infectious Disease Gastroenterology
EMA	endomysial antibody	Blood antibody test for coeliac disease	Gastroenterology Laboratory
EMA ab	endomysial antibody (celiac)	Confirmatory celiac blood test	Pediatrics Gastroenterology Laboratory
EN	enteral nutrition	Nutrition given into the gut by tube	Gastroenterology Nursing
encopresis	encopresis (soiling term)	Stool accidents from overflow constipation	Pediatrics Gastroenterology Psychiatry
enteric precautions	enteric precautions	Precautions for stool-spread infections	Nursing Infectious Disease Gastroenterology
EoE	eosinophilic esophagitis	Allergic inflammation of the food pipe	Gastroenterology
EPCAM	epithelial cell adhesion molecule	Gene linked to Lynch syndrome when deleted	Laboratory Hematology & Oncology Gastroenterology
EPI	exocrine pancreatic insufficiency	Pancreas making too few digestive enzymes	Gastroenterology
epiploic	epiploic appendages (anatomy)	Small fat tags on the colon	Gastroenterology
EPS PD	encapsulating peritoneal sclerosis (PD)	Scarring cocoon complication of long PD	Renal & Nephrology Gastroenterology
ERCP	endoscopic retrograde cholangiopancreatography	Scope and X-ray procedure on bile and pancreatic ducts	Gastroenterology Radiology & Imaging
EUS	endoscopic ultrasound	Scope with ultrasound examining gut wall and nearby organs	Gastroenterology Radiology & Imaging
EUS FNA	endoscopic ultrasound fine needle aspiration	Scope-ultrasound sampling through the gut wall	Gastroenterology Radiology & Imaging
falciform	falciform ligament (anatomy)	Fold dividing the liver's top surface	Gastroenterology
FAP	familial adenomatous polyposis	Inherited condition causing many colon polyps	Hematology & Oncology Gastroenterology
FB ingestion	foreign body ingestion (presentation)	Swallowed object presentation	Pediatrics Gastroenterology Emergency & Critical Care
FD child	functional dyspepsia (childhood)	Upper stomach functional pain — childhood	Pediatrics Gastroenterology
fecal calprotectin	fecal calprotectin (inflammation marker)	Stool marker distinguishing IBD from IBS	Laboratory Gastroenterology
fecal elastase	fecal pancreatic elastase	stool test for pancreatic insufficiency	Laboratory Gastroenterology
fecal fat	fecal fat (qualitative/quantitative)	Stool test for fat malabsorption	Laboratory Gastroenterology
feeding aversion	feeding aversion (behavioral)	Refusal pattern from pressured or painful feeding	Pediatrics Gastroenterology Psychiatry
FIB-4	Fibrosis-4 index	Blood-based score estimating liver scarring	Gastroenterology Laboratory
FIT	faecal immunochemical test	Stool test detecting hidden blood	Gastroenterology Laboratory
FLD	full liquid diet	All liquids and foods that melt allowed	Nursing Gastroenterology
Flex sig	flexible sigmoidoscopy	Camera examination of the lower large intestine	Gastroenterology Surgery
FMS	fecal management system	Closed rectal stool collection device	Nursing Gastroenterology
FNB	fine needle biopsy (core-type)	Needle obtaining tissue architecture, not just cells	Gastroenterology Radiology & Imaging Laboratory
FOBT	faecal occult blood test	Stool test detecting hidden blood	Gastroenterology Laboratory
FODMAP	fermentable oligosaccharides, disaccharides, monosaccharides and polyols	Group of gut-fermenting carbohydrates	Gastroenterology
FOLFIRINOX	folinic acid fluorouracil irinotecan oxaliplatin	Intensive pancreatic cancer chemotherapy combination	Hematology & Oncology Prescription & Medication Orders Gastroenterology
FOLFOXIRI	folinic acid fluorouracil oxaliplatin irinotecan	Intensive three-drug colon cancer combination	Hematology & Oncology Prescription & Medication Orders Gastroenterology
food allergy	food allergy (diagnosis)	Immune reaction to a food — diagnosis	Pediatrics Infectious Disease Gastroenterology
food chaining	food chaining (therapy)	Gradual food expansion from accepted foods	Pediatrics Gastroenterology Psychiatry
food impaction child	esophageal food impaction (childhood)	Stuck food in a child's food pipe	Pediatrics Gastroenterology Emergency & Critical Care
FPIAP	food protein-induced allergic proctocolitis	Milk-protein bloody stools in infants	Pediatrics Gastroenterology
functional abdo	functional abdominal pain disorders (group)	Gut-brain pain conditions of childhood	Pediatrics Gastroenterology Psychiatry
G-POEM	gastric peroral endoscopic myotomy	Scope procedure opening the stomach outlet	Gastroenterology Surgery
G-tube exchange	gastrostomy tube exchange	Changing an established stomach feeding tube	Gastroenterology Surgery Nursing
G-tube feed	gastrostomy tube feeding	Feeding through a stomach tube	Nursing Gastroenterology
GAHS	Glasgow Alcoholic Hepatitis Score	Alcoholic hepatitis prognosis score	Gastroenterology
gastric emptying study	gastric emptying scintigraphy	Nuclear test of stomach emptying speed	Radiology & Imaging Gastroenterology
GB	gallbladder	Small organ storing bile under the liver	Gastroenterology
GBS bleed	Glasgow-Blatchford Score	Pre-endoscopy upper GI bleed risk score	Gastroenterology Emergency & Critical Care
GDA	gastroduodenal artery	Artery behind the stomach outlet	Gastroenterology Radiology & Imaging
GER	gastroesophageal reflux	Stomach contents flowing back into the food pipe	Pediatrics Gastroenterology
GERD	gastroesophageal reflux disease	Stomach acid flowing back into the food pipe	Gastroenterology
GERD child	infant reflux (physiologic)	Normal baby spitting up pattern	Pediatrics Gastroenterology
GF diet	gluten-free diet	Diet required in celiac disease	Nursing Gastroenterology
gFOBT	guaiac fecal occult blood test	Chemical stool blood test	Laboratory Gastroenterology
GGT	gamma-glutamyl transferase	Liver enzyme often raised with bile duct problems	Laboratory Gastroenterology
GI	gastrointestinal	Relating to the stomach and intestines	Gastroenterology
GI bleed	gastrointestinal bleed	Bleeding anywhere in the digestive tract	Gastroenterology Emergency & Critical Care
GIST	gastrointestinal stromal tumour	Tumour arising from gut wall pacemaker cells	Gastroenterology Hematology & Oncology
growth failure IBD	growth failure (IBD complication)	Poor growth from bowel inflammation	Pediatrics Gastroenterology Endocrinology
GT	gastrostomy tube	Feeding tube going into the stomach	Gastroenterology Nursing
H. pylori	Helicobacter pylori	Stomach bacterium linked to ulcers	Gastroenterology Infectious Disease
H. pylori Ag	Helicobacter pylori stool antigen	Stool test for stomach H. pylori infection	Laboratory Gastroenterology Infectious Disease
H2RA	histamine-2 receptor antagonist	Medicine reducing stomach acid	Prescription & Medication Orders Gastroenterology
HAEC	Hirschsprung-associated enterocolitis	Dangerous bowel infection in Hirschsprung disease	Pediatrics Gastroenterology Surgery Emergency & Critical Care
haustra	haustra (colon anatomy)	Pouch-like folds of the colon	Gastroenterology
HAV	hepatitis A virus	Virus causing liver inflammation, type A	Laboratory Infectious Disease Gastroenterology
HBeAg	hepatitis B e antigen	Marker of high hepatitis B infectivity	Laboratory Infectious Disease Gastroenterology
HBV	hepatitis B virus	Virus causing liver inflammation, type B	Laboratory Infectious Disease Gastroenterology
HBV DNA	hepatitis B virus DNA	Viral level guiding hepatitis B treatment	Laboratory Infectious Disease Gastroenterology
HCC	hepatocellular carcinoma	Primary cancer arising in liver cells	Gastroenterology Hematology & Oncology
HCV	hepatitis C virus	Virus causing liver inflammation, type C	Laboratory Infectious Disease Gastroenterology
HCV RNA	hepatitis C virus RNA	Viral level confirming active hepatitis C	Laboratory Infectious Disease Gastroenterology
HDV	hepatitis D virus	Virus causing liver inflammation only in people with hepatitis B	Infectious Disease Gastroenterology
HE	hepatic encephalopathy	Brain dysfunction caused by liver failure	Gastroenterology Neurology
Hematemesis	haematemesis	Vomiting blood	Gastroenterology Emergency & Critical Care
Hematochezia	haematochezia	Passing fresh red blood from the back passage	Gastroenterology
hepatic enceph	hepatic encephalopathy (psych presentation)	Confusion from liver failure presenting psychiatrically	Psychiatry Gastroenterology Neurology
hepatoblastoma	hepatoblastoma (diagnosis)	Liver tumor of toddlers	Pediatrics Gastroenterology Hematology & Oncology
HEV	hepatitis E virus	Virus causing liver inflammation, spread mainly through contaminated water	Infectious Disease Gastroenterology
HFE	hemochromatosis gene	Gene linked to iron overload when faulty	Laboratory Hematology & Oncology Gastroenterology
HIDA	hepatobiliary iminodiacetic acid scan	Nuclear scan of gallbladder and bile flow	Radiology & Imaging Gastroenterology
high fiber diet	high-fiber diet	Fiber-enriched diet order	Nursing Gastroenterology
Hirschsprung	Hirschsprung disease (diagnosis)	Missing bowel nerves causing blockage — diagnosis	Pediatrics Gastroenterology Surgery
HNPCC	hereditary nonpolyposis colorectal cancer	Inherited condition raising colon cancer risk, also called Lynch syndrome	Hematology & Oncology Gastroenterology
HPS	hepatopulmonary syndrome	Lung vessel widening causing low oxygen in liver disease	Gastroenterology Respiratory
HPS	hypertrophic pyloric stenosis	Thickening of the stomach outlet muscle in young infants	Pediatrics Gastroenterology Surgery
HRS	hepatorenal syndrome	Kidney failure occurring in advanced liver disease	Renal & Nephrology Gastroenterology
HSV esophagitis	herpes simplex virus esophagitis	Herpes infection of the esophagus in weakened immunity	Infectious Disease Gastroenterology
IBD	inflammatory bowel disease	Long-term gut inflammation, mainly Crohn's and ulcerative colitis	Gastroenterology
IBD child	pediatric inflammatory bowel disease (term)	Childhood Crohn and colitis grouping	Pediatrics Gastroenterology
IBS	irritable bowel syndrome	Gut condition with pain, bloating and changed bowel habit	Gastroenterology
IBS child	childhood irritable bowel syndrome ()	Functional bowel pain pattern — childhood	Pediatrics Gastroenterology
ICP	intrahepatic cholestasis of pregnancy (itching)	Liver bile problem causing itching — pregnancy	Obstetrics & Gynecology Gastroenterology
IFALD	intestinal failure-associated liver disease	Liver injury from long-term IV nutrition	Pediatrics Gastroenterology
IgA	immunoglobulin A	Antibody protecting mucosal surfaces like the gut	Laboratory Infectious Disease Gastroenterology
ileocecal	ileocecal valve (anatomy)	Valve between small bowel and colon	Gastroenterology
IMA	inferior mesenteric artery	Artery feeding the lower colon	Gastroenterology Radiology & Imaging
intussusception	intussusception (diagnosis)	Telescoping bowel — diagnosis	Pediatrics Gastroenterology Surgery Emergency & Critical Care Radiology & Imaging
IO	intestinal obstruction	Blockage of the intestines	Gastroenterology Surgery
IRINO	irinotecan (chart shorthand)	Colon cancer chemotherapy shorthand	Prescription & Medication Orders Hematology & Oncology Gastroenterology
J-tube feed	jejunostomy tube feeding	Feeding through a small-bowel tube	Nursing Gastroenterology
jejunal atresia	jejunal atresia (diagnosis)	Blocked small bowel segment at birth	Pediatrics Gastroenterology Surgery
JT	jejunostomy tube	Feeding tube going into the small intestine	Gastroenterology Nursing
Kasai	Kasai portoenterostomy (biliary)	Bowel-to-liver bile drainage operation	Pediatrics Gastroenterology Surgery
KRAS	KRAS (oncogene)	Gene mutation tested in colon and lung cancers	Laboratory Hematology & Oncology Gastroenterology
Ladd	Ladd procedure (malrotation)	Operation untwisting and widening the bowel layout	Pediatrics Gastroenterology Surgery
LAGB	laparoscopic adjustable gastric banding	Inflatable band weight loss operation	Surgery Gastroenterology
Lap appy	laparoscopic appendicectomy	Keyhole operation to remove the appendix	Surgery Gastroenterology
Lap chole	laparoscopic cholecystectomy	Keyhole operation to remove the gallbladder	Gastroenterology Surgery
LAR	low anterior resection	Removal of the rectum area preserving the anus where possible	Surgery Gastroenterology
LBO	large bowel obstruction	Blockage of the large intestine	Gastroenterology Surgery Emergency & Critical Care
LDLT	living donor liver transplant	Liver transplant from a living donor	Surgery Gastroenterology
LF diet	low-fat diet	Fat-restricted diet order	Nursing Gastroenterology
LFTs	liver function tests	Group of blood tests assessing the liver	Laboratory Gastroenterology
LGA	left gastric artery	Artery along the stomach's upper curve	Gastroenterology
LGIB	lower gastrointestinal bleed	Bleeding from the lower intestine or colon	Gastroenterology Emergency & Critical Care
LHA	left hepatic artery	Artery to the left liver	Gastroenterology Radiology & Imaging
ligament of Treitz	ligament of Treitz (anatomy)	Band marking the duodenum-jejunum junction	Gastroenterology Surgery
LIRADS	Liver Imaging Reporting and Data System	Standard categories for liver imaging in cirrhosis	Radiology & Imaging Gastroenterology
LKM	anti-liver kidney microsomal antibody	Antibody in a type of autoimmune hepatitis	Laboratory Gastroenterology
low residue	low-residue diet	Low-fiber diet resting the bowel	Nursing Gastroenterology
LSM	liver stiffness measurement	Numerical result of elastography	Gastroenterology Radiology & Imaging
LWS	large-bore lavage (Ewald)	Stomach washout tube for poisoning	Emergency & Critical Care Gastroenterology
magnet ingestion	magnet ingestion (multiple magnets)	Swallowed magnets attracting across bowel	Pediatrics Gastroenterology Emergency & Critical Care Surgery
malrotation	malrotation (diagnosis)	Abnormal bowel rotation — diagnosis	Pediatrics Gastroenterology Surgery Emergency & Critical Care
Marsh	Marsh classification (celiac biopsy)	Bowel damage grading in celiac disease	Pediatrics Gastroenterology Laboratory
MASLD	metabolic dysfunction-associated steatotic liver disease	Fatty liver disease linked to metabolic conditions	Gastroenterology Endocrinology
Meckel scan	Meckel diverticulum scintigraphy	Nuclear scan for a Meckel diverticulum	Radiology & Imaging Gastroenterology Pediatrics
meconium ileus	meconium ileus (diagnosis)	Thick stool blocking a newborn's bowel — diagnosis	Pediatrics Gastroenterology Surgery Respiratory
meconium plug	meconium plug syndrome (diagnosis)	Stool plug blocking a newborn's colon	Pediatrics Gastroenterology
MELD	Model for End-Stage Liver Disease	Liver severity score used in transplant allocation	Gastroenterology Laboratory
MELD 3.0	Model for End-Stage Liver Disease 3.0	Updated liver allocation score	Gastroenterology
MELD-Na	Model for End-Stage Liver Disease with sodium	Liver severity score including sodium	Gastroenterology Laboratory
mesentery anatomy	mesentery (anatomy)	Fan of tissue suspending the bowel — anatomy	Gastroenterology Surgery
Metro	metronidazole	Antibiotic and antiprotozoal medicine	Prescription & Medication Orders Infectious Disease Gastroenterology
milk ladder	milk ladder (reintroduction steps)	Gradual milk reintroduction steps	Pediatrics Gastroenterology
MLH1	MutL homolog 1	Lynch syndrome DNA repair gene	Laboratory Hematology & Oncology Gastroenterology
MRCP	magnetic resonance cholangiopancreatography	MRI scan of bile and pancreatic ducts	Gastroenterology Radiology & Imaging
MRE	magnetic resonance elastography	MRI measuring tissue stiffness, often liver	Radiology & Imaging Gastroenterology
mRECIST	modified RECIST	Response criteria for liver cancer treatment	Hematology & Oncology Gastroenterology Radiology & Imaging
MSH2	MutS homolog 2	Lynch syndrome DNA repair gene	Laboratory Hematology & Oncology Gastroenterology
MSH6	MutS homolog 6	Lynch syndrome DNA repair gene	Laboratory Hematology & Oncology Gastroenterology
MTZ	metronidazole (chart shorthand)	Anaerobic and protozoal antibiotic shorthand	Prescription & Medication Orders Infectious Disease Gastroenterology
MUST	Malnutrition Universal Screening Tool	Score screening for malnutrition risk	Nursing Gastroenterology
N/V	nausea and vomiting	Feeling sick and throwing up	General Medical Gastroenterology
NAFLD	non-alcoholic fatty liver disease	Fat build-up in the liver unrelated to alcohol	Gastroenterology
NASH	non-alcoholic steatohepatitis	Fatty liver inflammation unrelated to alcohol	Gastroenterology
NBM	nil by mouth	Nothing to eat or drink	Gastroenterology Nursing
NEC	necrotizing enterocolitis	Serious bowel disease mainly affecting premature babies	Pediatrics Gastroenterology Emergency & Critical Care
NG	nasogastric	Through the nose into the stomach, as a tube	Nursing Gastroenterology
NG decompression	nasogastric decompression (therapy)	Stomach drainage relieving bowel blockage	Nursing Gastroenterology Surgery
NG dependence	nasogastric tube dependence (feeding)	Continued tube reliance beyond medical need	Pediatrics Gastroenterology Nursing
NG tube	nasogastric tube (device)	Nose-to-stomach tube — device	Nursing Gastroenterology
NGT	nasogastric tube	Tube through the nose into the stomach	Gastroenterology Nursing
NoV	norovirus	Leading cause of vomiting and diarrhea outbreaks	Infectious Disease Gastroenterology Laboratory
OAGB	one anastomosis gastric bypass	Single-join gastric bypass	Surgery Gastroenterology
OG	orogastric	Through the mouth into the stomach, as a tube	Nursing Gastroenterology
OG tube	orogastric tube (device)	Mouth-to-stomach tube	Nursing Gastroenterology Emergency & Critical Care
OGD	oesophago-gastro-duodenoscopy	Camera examination of food pipe, stomach and upper intestine	Gastroenterology Surgery
olive mass	olive mass (pyloric palpation)	Felt lump of the thickened outlet	Pediatrics Gastroenterology
OLT	orthotopic liver transplant	Liver transplant placed in the normal position	Surgery Gastroenterology
omentum anatomy	omentum (anatomy)	Fatty apron over the bowel — anatomy	Gastroenterology Surgery
Open appy	open appendicectomy	Appendix removal through a larger cut	Surgery Gastroenterology
open chole	open cholecystectomy	Gallbladder removal through an open incision	Surgery Gastroenterology
ostomy appliance	ostomy appliance (pouch)	Bag worn over a stoma	Nursing Gastroenterology Surgery
OV	oesophageal varices	Swollen veins in the food pipe from liver pressure	Gastroenterology
PBC	primary biliary cholangitis	Autoimmune disease damaging small bile ducts	Gastroenterology
PCA	parietal cell antibody	Antibody linked to pernicious anemia	Laboratory Gastroenterology Hematology & Oncology
PCDAI	Pediatric Crohn Disease Activity Index	Child Crohn severity score	Pediatrics Gastroenterology
PEG	percutaneous endoscopic gastrostomy	Feeding tube placed through the skin into the stomach	Gastroenterology Surgery
PEG tube	percutaneous endoscopic gastrostomy tube	Feeding tube placed through the abdominal wall with a scope	Gastroenterology Surgery Nursing
PEG-J	PEG with jejunal extension	Stomach tube extended into the small bowel for feeding	Gastroenterology Surgery
PEJ	percutaneous endoscopic jejunostomy	Feeding tube placed into the small bowel with a scope	Gastroenterology Surgery
Perf	perforation	A hole through the wall of an organ	Gastroenterology Surgery Emergency & Critical Care
PIBD classes	Paris classification (pediatric IBD)	Child IBD pattern classification	Pediatrics Gastroenterology
PMS2	postmeiotic segregation increased 2	Lynch syndrome DNA repair gene	Laboratory Hematology & Oncology Gastroenterology
PN	parenteral nutrition	Nutrition given through a vein	Gastroenterology Nursing
POEM	peroral endoscopic myotomy	Scope-based muscle cutting for achalasia through the mouth	Gastroenterology Surgery
porta	porta hepatis (anatomy)	Gateway where vessels enter the liver	Gastroenterology Radiology & Imaging
post-tussive	post-tussive emesis (symptom)	Vomiting after coughing fits	Pediatrics Respiratory Gastroenterology
pouch of Douglas	rectouterine pouch (Douglas)	Lowest belly pocket behind the uterus	Obstetrics & Gynecology Gastroenterology
PPI	proton pump inhibitor	Medicine strongly reducing stomach acid	Prescription & Medication Orders Gastroenterology
PPPD	pylorus-preserving pancreaticoduodenectomy	Whipple variant keeping the stomach outlet	Surgery Gastroenterology
PR bleed	per rectum bleed	Bleeding from the back passage	Gastroenterology
PSC	primary sclerosing cholangitis	Disease causing scarring of bile ducts	Gastroenterology
psoas	psoas major (muscle)	Deep hip flexor muscle	Musculoskeletal Gastroenterology
PTBD	percutaneous transhepatic biliary drainage	Bile duct drain placed through the liver	Radiology & Imaging Gastroenterology
PTC	percutaneous transhepatic cholangiography	Contrast study of bile ducts through the liver	Radiology & Imaging Gastroenterology
PUCAI	Pediatric Ulcerative Colitis Activity Index	Child colitis severity score	Pediatrics Gastroenterology
PUD	peptic ulcer disease	Sores in the stomach or upper intestine lining	Gastroenterology
pull-through	pull-through procedure (Hirschsprung)	Surgery bringing working bowel to the anus	Pediatrics Gastroenterology Surgery
PVT	portal vein thrombosis	Blood clot in the main vein to the liver	Gastroenterology Hematology & Oncology
pyloric stenosis	hypertrophic pyloric stenosis (diagnosis)	Thickened stomach outlet in infants — diagnosis	Pediatrics Gastroenterology Surgery Emergency & Critical Care
pyloromyotomy	pyloromyotomy (procedure)	Cutting the thickened outlet muscle	Pediatrics Gastroenterology Surgery
quadrate lobe	quadrate lobe (liver)	Small front lobe of the liver	Gastroenterology
RD	registered dietitian	Nutrition professional qualification	General Medical Gastroenterology
rectal tube	rectal tube (device)	Tube managing liquid stool	Nursing Gastroenterology
reversal of Hartmann	Hartmann reversal	Reconnecting the bowel after a Hartmann operation	Surgery Gastroenterology
RGA	right gastric artery	Small artery along the stomach's lower curve	Gastroenterology
RHA	right hepatic artery	Artery to the right liver	Gastroenterology Radiology & Imaging
Rome IV	Rome IV criteria (functional GI)	Symptom criteria for functional gut disorders	Pediatrics Gastroenterology
RoV	rotavirus	Diarrhea virus of infancy, vaccine preventable	Infectious Disease Gastroenterology Pediatrics Laboratory
rumination	rumination syndrome (functional)	Effortless food regurgitation pattern	Pediatrics Gastroenterology Psychiatry
RY esophagojej	Roux-en-Y esophagojejunostomy	Food pipe joined to small bowel after total gastrectomy	Surgery Gastroenterology
RY reconstruction	Roux-en-Y reconstruction	Bowel rearrangement after stomach surgery	Surgery Gastroenterology
RYGB	Roux-en-Y gastric bypass	Weight-loss operation rerouting the stomach and intestine	Surgery Gastroenterology Endocrinology
sacral neuromod	sacral neuromodulation (procedure)	Implanted bladder-control stimulator	Surgery Renal & Nephrology Gastroenterology
SADI-S	single anastomosis duodeno-ileal bypass with sleeve	Combined sleeve and bypass bariatric operation	Surgery Gastroenterology
sandifer	Sandifer syndrome (reflux posturing)	Arching postures from reflux in infants	Pediatrics Gastroenterology Neurology
SBO	small bowel obstruction	Blockage of the small intestine	Gastroenterology Surgery Emergency & Critical Care
SBP	spontaneous bacterial peritonitis	Infection of abdominal fluid in liver disease	Gastroenterology Infectious Disease Emergency & Critical Care
SBS	short bowel syndrome	Poor absorption after much of the intestine is removed	Gastroenterology
SBS child	short bowel syndrome (childhood)	Too little bowel after surgery — childhood	Pediatrics Gastroenterology Surgery Nursing
secretin test	secretin stimulation test	Pancreatic function test	Laboratory Gastroenterology
sharp FB	sharp object ingestion ()	Swallowed sharp object	Pediatrics Gastroenterology Emergency & Critical Care
SIBO	small intestinal bacterial overgrowth	Excess bacteria growing in the small intestine	Gastroenterology
sleeve	laparoscopic sleeve gastrectomy (shorthand)	Stomach-sleeve weight loss operation	Surgery Gastroenterology
SMA anatomy	superior mesenteric artery (anatomy)	Artery feeding most of the intestines	Gastroenterology Radiology & Imaging
small bowel resection	SBR (small bowel resection)	Removal of a segment of small intestine	Surgery Gastroenterology
Soave	Soave procedure (pull-through)	Cuff-style Hirschsprung operation	Pediatrics Gastroenterology Surgery
splenic art	splenic artery	Artery to the spleen	Gastroenterology Hematology & Oncology
SSZ	sulfasalazine	Medicine used for inflammatory bowel and joint disease	Prescription & Medication Orders Musculoskeletal Gastroenterology
STEC	Shiga toxin-producing Escherichia coli	Type of E. coli that can cause bloody diarrhoea and kidney complications	Infectious Disease Gastroenterology
stool lactoferrin	fecal lactoferrin	Marker of intestinal inflammation in stool	Laboratory Gastroenterology
SVR	sustained virologic response	Cure endpoint after hepatitis C treatment	Infectious Disease Gastroenterology
SWE	shear wave elastography	Ultrasound stiffness measurement, often for liver fibrosis	Radiology & Imaging Gastroenterology
Swenson	Swenson procedure (pull-through)	Full-thickness Hirschsprung operation	Pediatrics Gastroenterology Surgery
TACE	transarterial chemoembolization	Chemo and blocking particles delivered into liver tumors	Hematology & Oncology Radiology & Imaging Gastroenterology
TAMIS	transanal minimally invasive surgery	Local rectal tumor removal through the anus	Surgery Gastroenterology
TARE	transarterial radioembolization	Radiation beads delivered into liver tumors	Hematology & Oncology Radiology & Imaging Gastroenterology
TaTME	transanal total mesorectal excision	Rectal removal performed from below and above	Surgery Gastroenterology
TBili	total bilirubin	Total yellow pigment level in blood	Laboratory Gastroenterology
TE	transient elastography	Ultrasound-based stiffness scan of the liver	Gastroenterology Radiology & Imaging
TEM	transanal endoscopic microsurgery	Scope-based local rectal lesion removal	Surgery Gastroenterology
teniae	teniae coli (anatomy)	Longitudinal muscle bands of the colon	Gastroenterology
TIPS	transjugular intrahepatic portosystemic shunt	Channel created in the liver to lower portal pressure	Gastroenterology Radiology & Imaging
TME	total mesorectal excision	Precise removal of the rectum with its fatty envelope	Surgery Gastroenterology Hematology & Oncology
TPN-dependent	total parenteral nutrition dependent	Relying on IV nutrition long-term	Nursing Gastroenterology
tTG	tissue transglutaminase	Enzyme targeted by antibodies in celiac disease	Laboratory Gastroenterology
tube weaning	tube weaning (program)	Planned transition from tube to oral feeding	Pediatrics Gastroenterology Nursing
UBT	urea breath test	Breath test for H. pylori infection	Laboratory Gastroenterology Infectious Disease
UC	ulcerative colitis	Inflammatory disease of the colon lining	Gastroenterology
UGIB	upper gastrointestinal bleed	Bleeding from the food pipe, stomach or upper intestine	Gastroenterology Emergency & Critical Care
ULar	ultralow anterior resection	Very low rectal removal	Surgery Gastroenterology
vagus anatomy	vagus nerve (anatomy)	Long cranial nerve to chest and gut — anatomy	Neurology Gastroenterology
VEO-IBD	very early onset inflammatory bowel disease	IBD before age six suggesting immune causes	Pediatrics Gastroenterology Infectious Disease
VIP	vasoactive intestinal peptide	Hormone measured in certain pancreatic tumors	Laboratory Endocrinology Gastroenterology
volvulus	midgut volvulus (emergency)	Twisted bowel emergency — emergency	Pediatrics Gastroenterology Surgery Emergency & Critical Care
VSG	vertical sleeve gastrectomy	Weight-loss operation removing much of the stomach	Surgery Gastroenterology Endocrinology
Whipple anatomy	Whipple (pancreaticoduodenectomy, shorthand)	Major pancreas and duodenum operation shorthand	Surgery Gastroenterology Hematology & Oncology
XELOX	capecitabine oxaliplatin (XELOX naming)	Colon cancer combination named from brand Xeloda	Hematology & Oncology Prescription & Medication Orders Gastroenterology
ZES	Zollinger-Ellison syndrome	Condition of excess stomach acid from a gastrinoma	Endocrinology Gastroenterology

Educational reference only. This guide is for learning and quick reference. Abbreviations vary between hospitals, countries and specialties, and some are discouraged because they can be misread. Always write and interpret orders using your own institution’s approved abbreviation list, and check anything unclear with the prescriber or your local policy.

Gastroenterology Abbreviations — MedicalVideos.com

5'-NT — 5-prime nucleotidase

5-HIAA — 5-hydroxyindoleacetic acid

acholic stool — acholic stools (pale sign)

ACLF — acute-on-chronic liver failure

acrodermatitis — acrodermatitis enteropathica (zinc)

AdV-F — enteric adenovirus

AFLP — acute fatty liver of pregnancy

AFP — alpha-fetoprotein

AGB — adjustable gastric band

AIH — autoimmune hepatitis

AIMS65 — AIMS65 score

AIN — anal intraepithelial neoplasia

Alb — albumin

ALBI — albumin-bilirubin grade

ALD — alcoholic liver disease

ALF — acute liver failure

ALP — alkaline phosphatase

ALT — alanine aminotransferase

AM child — abdominal migraine (childhood)

AMA — antimitochondrial antibody

anti-HAV — hepatitis A antibody

anti-HCV — hepatitis C antibody

anti-SMA — anti-smooth muscle antibody

Anti-tTG — tissue transglutaminase antibody

AP — acute pancreatitis

APACHE pancreas — APACHE II in pancreatitis

APC — adenomatous polyposis coli gene

apple peel — apple peel atresia (bowel)

Appy — appendicectomy

APRI — AST to platelet ratio index

ASMA — smooth muscle antibody

AST — aspartate aminotransferase

asterixis — asterixis (finding)

AstV — astrovirus

Atlanta — revised Atlanta classification

AXR — abdominal X-ray

band removal — gastric band removal

bare area — bare area (liver anatomy)

Bili — bilirubin

biliary atresia — biliary atresia (diagnosis)

BISAP — Bedside Index of Severity in Acute Pancreatitis

BM — bowel movement

bolus feed — bolus feeding (tube)

Bowel prep — bowel preparation

BRAT diet — bananas rice applesauce toast diet

BRTO — balloon-occluded retrograde transvenous obliteration

BS — bowel sounds

button battery — button battery ingestion (emergency)

C. diff — Clostridioides difficile

C. diff precautions — Clostridioides difficile precautions

C. diff toxin — Clostridioides difficile toxin assay

CA 19-9 — cancer antigen 19-9

CA 72-4 — cancer antigen 72-4

Calprotectin — faecal calprotectin

CAP — controlled attenuation parameter

CAPOX — capecitabine oxaliplatin

Carcinoid — carcinoid tumour

caudate lobe — caudate lobe (liver)

CBD — common bile duct

CBD anatomy — common bile duct (anatomy)

CD — Crohn's disease

CDI — Clostridioides difficile infection

CEA — carcinoembryonic antigen

celiac — celiac artery (trunk)

celiac child — celiac disease (childhood)

CHA — common hepatic artery

Chole — cholecystectomy

choledochal — choledochal cyst (bile duct)

CLD — clear liquid diet

CLIF-C — Chronic Liver Failure Consortium score

CMP — comprehensive metabolic panel

CMV colitis — cytomegalovirus colitis

coin ingestion — coin ingestion (foreign body)

Colo — colonoscopy

constipation child — functional constipation (childhood)

continuous feed — continuous tube feeding

CP — chronic pancreatitis

CRC — colorectal cancer

CTC — computed tomography colonography

CTP — Child-Turcotte-Pugh score

CTSI — CT Severity Index (Balthazar)

Cullen — Cullen's sign

currant jelly — currant jelly stool (sign)

CVS — cyclic vomiting syndrome (episodes)

cystic art — cystic artery

D-xylose — D-xylose absorption test

DAA — direct-acting antiviral

DAT — diet as tolerated

DDLT — deceased donor liver transplant

DGP — deamidated gliadin peptide

DILI — drug-induced liver injury

DIOS — distal intestinal obstruction syndrome (CF)

DQ2 — HLA-DQ2

Duhamel — Duhamel procedure (pull-through)

duodenal atresia — duodenal atresia (diagnosis)

duodenal bulb — duodenal bulb (anatomy)

EA — esophageal atresia

EGD — esophagogastroduodenoscopy

EGID — eosinophilic gastrointestinal disorders

EHEC — enterohemorrhagic Escherichia coli

EMA — endomysial antibody

EMA ab — endomysial antibody (celiac)

EN — enteral nutrition

encopresis — encopresis (soiling term)

enteric precautions — enteric precautions

EoE — eosinophilic esophagitis

EPCAM — epithelial cell adhesion molecule

EPI — exocrine pancreatic insufficiency

epiploic — epiploic appendages (anatomy)

EPS PD — encapsulating peritoneal sclerosis (PD)

ERCP — endoscopic retrograde cholangiopancreatography

EUS — endoscopic ultrasound

EUS FNA — endoscopic ultrasound fine needle aspiration

falciform — falciform ligament (anatomy)

FAP — familial adenomatous polyposis

FB ingestion — foreign body ingestion (presentation)

FD child — functional dyspepsia (childhood)

fecal calprotectin — fecal calprotectin (inflammation marker)

fecal elastase — fecal pancreatic elastase

fecal fat — fecal fat (qualitative/quantitative)

feeding aversion — feeding aversion (behavioral)

FIB-4 — Fibrosis-4 index

FIT — faecal immunochemical test

FLD — full liquid diet

Flex sig — flexible sigmoidoscopy

FMS — fecal management system

FNB — fine needle biopsy (core-type)

FOBT — faecal occult blood test

FODMAP — fermentable oligosaccharides, disaccharides, monosaccharides and polyols

FOLFIRINOX — folinic acid fluorouracil irinotecan oxaliplatin

FOLFOXIRI — folinic acid fluorouracil oxaliplatin irinotecan

food allergy — food allergy (diagnosis)

food chaining — food chaining (therapy)

food impaction child — esophageal food impaction (childhood)

FPIAP — food protein-induced allergic proctocolitis

functional abdo — functional abdominal pain disorders (group)

G-POEM — gastric peroral endoscopic myotomy

G-tube exchange — gastrostomy tube exchange

G-tube feed — gastrostomy tube feeding

GAHS — Glasgow Alcoholic Hepatitis Score

gastric emptying study — gastric emptying scintigraphy

GB — gallbladder

GBS bleed — Glasgow-Blatchford Score

GDA — gastroduodenal artery

GER — gastroesophageal reflux

GERD — gastroesophageal reflux disease

GERD child — infant reflux (physiologic)

GF diet — gluten-free diet

gFOBT — guaiac fecal occult blood test

GGT — gamma-glutamyl transferase

GI — gastrointestinal

GI bleed — gastrointestinal bleed

GIST — gastrointestinal stromal tumour

growth failure IBD — growth failure (IBD complication)

GT — gastrostomy tube

H. pylori — Helicobacter pylori

H. pylori Ag — Helicobacter pylori stool antigen

H2RA — histamine-2 receptor antagonist

HAEC — Hirschsprung-associated enterocolitis

haustra — haustra (colon anatomy)

HAV — hepatitis A virus

HBeAg — hepatitis B e antigen

HBV — hepatitis B virus

HBV DNA — hepatitis B virus DNA

HCC — hepatocellular carcinoma

HCV — hepatitis C virus

HCV RNA — hepatitis C virus RNA

HDV — hepatitis D virus

HE — hepatic encephalopathy

Hematemesis — haematemesis

Hematochezia — haematochezia

hepatic enceph — hepatic encephalopathy (psych presentation)

hepatoblastoma — hepatoblastoma (diagnosis)

HEV — hepatitis E virus

HFE — hemochromatosis gene

HIDA — hepatobiliary iminodiacetic acid scan

high fiber diet — high-fiber diet

Hirschsprung — Hirschsprung disease (diagnosis)

HNPCC — hereditary nonpolyposis colorectal cancer

HPS — hepatopulmonary syndrome

HPS — hypertrophic pyloric stenosis

HRS — hepatorenal syndrome

HSV esophagitis — herpes simplex virus esophagitis

IBD — inflammatory bowel disease

IBD child — pediatric inflammatory bowel disease (term)

IBS — irritable bowel syndrome

IBS child — childhood irritable bowel syndrome ()

ICP — intrahepatic cholestasis of pregnancy (itching)

IFALD — intestinal failure-associated liver disease

IgA — immunoglobulin A

ileocecal — ileocecal valve (anatomy)

IMA — inferior mesenteric artery

intussusception — intussusception (diagnosis)

IO — intestinal obstruction

IRINO — irinotecan (chart shorthand)

J-tube feed — jejunostomy tube feeding

jejunal atresia — jejunal atresia (diagnosis)

JT — jejunostomy tube

Kasai — Kasai portoenterostomy (biliary)

KRAS — KRAS (oncogene)

Ladd — Ladd procedure (malrotation)

LAGB — laparoscopic adjustable gastric banding

Lap appy — laparoscopic appendicectomy

Lap chole — laparoscopic cholecystectomy

LAR — low anterior resection

LBO — large bowel obstruction

LDLT — living donor liver transplant

LF diet — low-fat diet

LFTs — liver function tests

LGA — left gastric artery

LGIB — lower gastrointestinal bleed

LHA — left hepatic artery

ligament of Treitz — ligament of Treitz (anatomy)

LIRADS — Liver Imaging Reporting and Data System

LKM — anti-liver kidney microsomal antibody

low residue — low-residue diet

LSM — liver stiffness measurement

LWS — large-bore lavage (Ewald)

magnet ingestion — magnet ingestion (multiple magnets)

malrotation — malrotation (diagnosis)

Marsh — Marsh classification (celiac biopsy)

MASLD — metabolic dysfunction-associated steatotic liver disease

Meckel scan — Meckel diverticulum scintigraphy

meconium ileus — meconium ileus (diagnosis)

meconium plug — meconium plug syndrome (diagnosis)

MELD — Model for End-Stage Liver Disease

MELD 3.0 — Model for End-Stage Liver Disease 3.0

MELD-Na — Model for End-Stage Liver Disease with sodium

mesentery anatomy — mesentery (anatomy)

Metro — metronidazole

milk ladder — milk ladder (reintroduction steps)

MLH1 — MutL homolog 1

MRCP — magnetic resonance cholangiopancreatography

MRE — magnetic resonance elastography

mRECIST — modified RECIST

MSH2 — MutS homolog 2

MSH6 — MutS homolog 6

MTZ — metronidazole (chart shorthand)

MUST — Malnutrition Universal Screening Tool

N/V — nausea and vomiting

NAFLD — non-alcoholic fatty liver disease

NASH — non-alcoholic steatohepatitis

NBM — nil by mouth

NEC — necrotizing enterocolitis

NG — nasogastric

NG decompression — nasogastric decompression (therapy)

NG dependence — nasogastric tube dependence (feeding)

NG tube — nasogastric tube (device)

NGT — nasogastric tube

NoV — norovirus

OAGB — one anastomosis gastric bypass

OG — orogastric

OG tube — orogastric tube (device)

OGD — oesophago-gastro-duodenoscopy

olive mass — olive mass (pyloric palpation)

OLT — orthotopic liver transplant

omentum anatomy — omentum (anatomy)

Open appy — open appendicectomy

open chole — open cholecystectomy

ostomy appliance — ostomy appliance (pouch)

OV — oesophageal varices

PBC — primary biliary cholangitis

PCA — parietal cell antibody

PCDAI — Pediatric Crohn Disease Activity Index

PEG — percutaneous endoscopic gastrostomy

PEG tube — percutaneous endoscopic gastrostomy tube

PEG-J — PEG with jejunal extension

PEJ — percutaneous endoscopic jejunostomy

Perf — perforation

PIBD classes — Paris classification (pediatric IBD)

PMS2 — postmeiotic segregation increased 2

PN — parenteral nutrition

POEM — peroral endoscopic myotomy

porta — porta hepatis (anatomy)

post-tussive — post-tussive emesis (symptom)

pouch of Douglas — rectouterine pouch (Douglas)

PPI — proton pump inhibitor

PPPD — pylorus-preserving pancreaticoduodenectomy

PR bleed — per rectum bleed

PSC — primary sclerosing cholangitis

psoas — psoas major (muscle)

PTBD — percutaneous transhepatic biliary drainage

PTC — percutaneous transhepatic cholangiography

PUCAI — Pediatric Ulcerative Colitis Activity Index

PUD — peptic ulcer disease

pull-through — pull-through procedure (Hirschsprung)

PVT — portal vein thrombosis

pyloric stenosis — hypertrophic pyloric stenosis (diagnosis)

pyloromyotomy — pyloromyotomy (procedure)

quadrate lobe — quadrate lobe (liver)

RD — registered dietitian

rectal tube — rectal tube (device)

reversal of Hartmann — Hartmann reversal

RGA — right gastric artery

RHA — right hepatic artery

Rome IV — Rome IV criteria (functional GI)

RoV — rotavirus

rumination — rumination syndrome (functional)

RY esophagojej — Roux-en-Y esophagojejunostomy

RY reconstruction — Roux-en-Y reconstruction

RYGB — Roux-en-Y gastric bypass

sacral neuromod — sacral neuromodulation (procedure)

SADI-S — single anastomosis duodeno-ileal bypass with sleeve

sandifer — Sandifer syndrome (reflux posturing)

SBO — small bowel obstruction

SBP — spontaneous bacterial peritonitis

SBS — short bowel syndrome

SBS child — short bowel syndrome (childhood)

secretin test — secretin stimulation test

sharp FB — sharp object ingestion ()

SIBO — small intestinal bacterial overgrowth

sleeve — laparoscopic sleeve gastrectomy (shorthand)

SMA anatomy — superior mesenteric artery (anatomy)

small bowel resection — SBR (small bowel resection)

Soave — Soave procedure (pull-through)

splenic art — splenic artery

SSZ — sulfasalazine

STEC — Shiga toxin-producing Escherichia coli

stool lactoferrin — fecal lactoferrin

SVR — sustained virologic response

SWE — shear wave elastography

Swenson — Swenson procedure (pull-through)

TACE — transarterial chemoembolization

TAMIS — transanal minimally invasive surgery

TARE — transarterial radioembolization

TaTME — transanal total mesorectal excision

TBili — total bilirubin

TE — transient elastography

TEM — transanal endoscopic microsurgery

teniae — teniae coli (anatomy)

TIPS — transjugular intrahepatic portosystemic shunt

TME — total mesorectal excision

TPN-dependent — total parenteral nutrition dependent

tTG — tissue transglutaminase

tube weaning — tube weaning (program)

UBT — urea breath test

UC — ulcerative colitis

UGIB — upper gastrointestinal bleed

ULar — ultralow anterior resection

vagus anatomy — vagus nerve (anatomy)

VEO-IBD — very early onset inflammatory bowel disease

VIP — vasoactive intestinal peptide

volvulus — midgut volvulus (emergency)

VSG — vertical sleeve gastrectomy

Whipple anatomy — Whipple (pancreaticoduodenectomy, shorthand)

XELOX — capecitabine oxaliplatin (XELOX naming)

ZES — Zollinger-Ellison syndrome

Printed from https://www.medicalvideos.com/medical-abbreviations/gi/ · Full searchable guide: https://www.medicalvideos.com/medical-abbreviations/ · Educational reference only — verify against your institution's approved list.

Gastroenterology Abbreviations

Gastroenterology Abbreviations — MedicalVideos.com

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