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K51.4

K51.4: Inflammatory polyps of colon

Non-billable headerICD-10-CM

K51.4 is a non-billable header ICD-10-CM code for inflammatory polyps of colon. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • adenomatous polyp of colon (D12.6)
  • polyposis of colon (D12.6)
  • polyps of colon NOS (K63.5)

Excludes1 inherited from the categories above K51.4

A category’s note binds every code beneath it.

Written on K51: Ulcerative colitis

  • Crohn's disease [regional enteritis] (K50.-)

Other codes that can never be billed with K51.4

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • K50Crohn's disease [regional enteritis]
  • K62.6Ulcer of anus and rectum
  • K63.0Abscess of intestine
  • K63.2Fistula of intestine
  • K63.3Ulcer of intestine

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead K51.4

2 child codes. Green means billable.

Other codes under K51

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.