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D12.6 — Benign neoplasm of colon, unspecified
D12.6
What this code means
A benign (non-cancerous) growth of the colon lining, such as an adenomatous polyp found at colonoscopy.
Also called: benign colon polyp, colon adenoma.
When this code is used
Used for benign neoplasm of the colon when the segment is not specified.
Where it sits in ICD-10-CM
Code D12.6 belongs to Chapter 2: Neoplasms, which covers codes C00–D49 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Learn more about this condition
Related procedures & tests
Related anatomy
Frequently asked questions
What is ICD-10-CM code D12.6?
D12.6 is the ICD-10-CM diagnosis code for “Benign neoplasm of colon, unspecified”. A benign (non-cancerous) growth of the colon lining, such as an adenomatous polyp found at colonoscopy.
When is code D12.6 used?
Used for benign neoplasm of the colon when the segment is not specified. It belongs to Chapter 2 of ICD-10-CM (Neoplasms).
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.