K58.1 — Irritable bowel syndrome with constipation
K58.1

What this code means
Irritable bowel syndrome in which constipation is the main bowel pattern, with recurring abdominal pain.
Also called: ibs with constipation, ibs-c.
When this code is used
Used for irritable bowel syndrome with constipation.
Where it sits in ICD-10-CM
Code K58.1 belongs to Chapter 11: Diseases of the digestive system, which covers codes K00–K95 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Related symptoms
Frequently asked questions
What is ICD-10-CM code K58.1?
K58.1 is the ICD-10-CM diagnosis code for “Irritable bowel syndrome with constipation”. Irritable bowel syndrome in which constipation is the main bowel pattern, with recurring abdominal pain.
When is code K58.1 used?
Used for irritable bowel syndrome with constipation. It belongs to Chapter 11 of ICD-10-CM (Diseases of the digestive system).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.