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K92.1 — Melena
K92.1
What this code means
Melaena is black, tarry stool caused by digested blood from bleeding in the upper digestive tract.
Also called: melena, melaena, black stool.
When this code is used
Used for melaena.
Where it sits in ICD-10-CM
Code K92.1 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.
Frequently asked questions
What is ICD-10-CM code K92.1?
K92.1 is the ICD-10-CM diagnosis code for “Melena”. Melaena is black, tarry stool caused by digested blood from bleeding in the upper digestive tract.
When is code K92.1 used?
Used for melaena. 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.