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K20.90 — Esophagitis, unspecified without bleeding
K20.90
What this code means
Oesophagitis is inflammation of the gullet (oesophagus), often from acid reflux; here without bleeding.
Also called: esophagitis, oesophagitis.
When this code is used
Used for oesophagitis, unspecified, without bleeding.
Where it sits in ICD-10-CM
Code K20.90 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
Related anatomy
Frequently asked questions
What is ICD-10-CM code K20.90?
K20.90 is the ICD-10-CM diagnosis code for “Esophagitis, unspecified without bleeding”. Oesophagitis is inflammation of the gullet (oesophagus), often from acid reflux; here without bleeding.
When is code K20.90 used?
Used for oesophagitis, unspecified, without bleeding. 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.