ICD-10-CM 2027
ICD-10 code for colon polyposis
From the official ICD-10-CM alphabetic index entry “Polyposis › colon”. Page updated September 29, 2026.
About coding colon polyposis
The ICD-10-CM code for colon polyposis is D12.6 (Benign neoplasm of colon, unspecified).
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.
Common questions about colon polyposis ICD-10 codes
What is the ICD-10 code for colon polyposis?
- D12.6 — Benign neoplasm of colon, unspecified.
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.