ICD-10-CM 2027
ICD-10 code for intestinal polyposis
From the official ICD-10-CM alphabetic index entry “Polyposis › intestinal”. Page updated September 29, 2026.
About coding intestinal polyposis
The ICD-10-CM code for intestinal polyposis is D12.6 (Benign neoplasm of colon, unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on D12.6.
Within D12, choose D12.6 (colon, unspecified) only when documentation doesn't support a more specific option: cecum (D12.0), appendix (D12.1), ascending colon (D12.2), transverse colon (D12.3), descending colon (D12.4), sigmoid colon (D12.5), rectosigmoid junction (D12.7), rectum (D12.8) and 1 more.
The conditions in its Excludes2 note aren't part of D12.6, but may be coded alongside it if the patient has both: inflammatory polyp of colon (K51.4-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific intestinal polyposis codes (official index)
- adenomatous D13.91 — Familial adenomatous polyposis
Common questions about intestinal polyposis ICD-10 codes
What is the ICD-10 code for intestinal polyposis?
- D12.6 — Benign neoplasm of colon, unspecified. More specific codes apply when the documentation supports them: D13.91.
What is the ICD-10 code for adenomatous intestinal polyposis?
- D13.91 — Familial adenomatous polyposis.
Is D12.6 billable?
- Yes. D12.6 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D12.6 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D12.6 as a principal diagnosis.
Is D12.6 a CC or MCC?
- No. D12.6 is neither a CC nor an MCC under MS-DRG v44.0.