ICD-10-CM 2027
ICD-10 code for colon polyp
From the official ICD-10-CM alphabetic index entry “Polyp, polypus › colon”. Page updated September 29, 2026.
About coding colon polyp
The ICD-10-CM code for colon polyp is K63.5 (Polyp of colon). The official index lists 19 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on K63.5.
Within K63 (other diseases of intestine), K63.5 is specifically for polyp of colon. Related codes cover abscess of intestine (K63.0), perforation of intestine (nontraumatic) (K63.1), fistula of intestine (K63.2), ulcer of intestine (K63.3), Enteroptosis (K63.4), other specified diseases of intestine (K63.8) and disease of intestine, unspecified (K63.9).
The conditions in its Excludes2 note aren't part of K63.5, but may be coded alongside it if the patient has both: adenomatous polyp of colon (D12.-), inflammatory polyp of colon (K51.4-) and polyposis of colon (D12.6).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific colon polyp codes (official index)
- adenomatous D12.6 — Benign neoplasm of colon, unspecified
- ascending D12.2 — Benign neoplasm of ascending colon
- cecum D12.0 — Benign neoplasm of cecum
- descending D12.4 — Benign neoplasm of descending colon
- sigmoid D12.5 — Benign neoplasm of sigmoid colon
- transverse D12.3 — Benign neoplasm of transverse colon
- ascending K63.5 — Polyp of colon
- cecum K63.5 — Polyp of colon
- descending K63.5 — Polyp of colon
- hyperplastic, (any site) K63.5 — Polyp of colon
- inflammatory K51.40 — Inflammatory polyps of colon without complications
- with
- abscess K51.414 — Inflammatory polyps of colon with abscess
- complication K51.419 — Inflammatory polyps of colon with unspecified complications
- specified NEC K51.418 — Inflammatory polyps of colon with other complication
- fistula K51.413 — Inflammatory polyps of colon with fistula
- intestinal obstruction K51.412 — Inflammatory polyps of colon with intestinal obstruction
- rectal bleeding K51.411 — Inflammatory polyps of colon with rectal bleeding
- sigmoid K63.5 — Polyp of colon
- transverse K63.5 — Polyp of colon
Common questions about colon polyp ICD-10 codes
What is the ICD-10 code for colon polyp?
- K63.5 — Polyp of colon. More specific codes apply when the documentation supports them: D12.6, D12.2, D12.0, D12.4 and others below.
What is the ICD-10 code for adenomatous colon polyp?
- D12.6 — Benign neoplasm of colon, unspecified.
What is the ICD-10 code for ascending colon polyp?
- K63.5 — Polyp of colon.
What is the ICD-10 code for cecum colon polyp?
- K63.5 — Polyp of colon.
What is the ICD-10 code for descending colon polyp?
- K63.5 — Polyp of colon.
What is the ICD-10 code for inflammatory colon polyp?
- K51.40 — Inflammatory polyps of colon without complications.
What is the ICD-10 code for sigmoid colon polyp?
- K63.5 — Polyp of colon.
Is K63.5 billable?
- Yes. K63.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K63.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K63.5 as a principal diagnosis.
Is K63.5 a CC or MCC?
- No. K63.5 is neither a CC nor an MCC under MS-DRG v44.0.