K51.2

Non-billable

Ulcerative (chronic) proctitis

K51.2 is the ICD-10-CM code for Ulcerative (chronic) proctitis. It is a non-billable category code — use a more specific child code such as K51.20 for billing.

Status
Header (non-billable)
Chapter
K00-K95
Parent
K51
Subcodes
2
Edition
FY2026

K00-K95 Diseases of the digestive system

What this means — in plain language

MedlinePlus · NIH

Ulcerative colitis (UC) is a disease that causes inflammation and sores, called ulcers, in the lining of the rectum and colon. It is one of a group of diseases called inflammatory bowel disease. UC can happen at any age, but it usually starts between the ages of 15 and 30. It tends to run in families. The most common symptoms are pain in the abdomen and blood or pus in diarrhea. Other symptoms may include: Anemia…

Read more about Ulcerative Colitis at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code K51.2?
K51.2 is the ICD-10-CM code for "Ulcerative (chronic) proctitis". It falls under K00-K95 Diseases of the digestive system.
Is K51.2 a billable code?
No — K51.2 is a non-billable header code. Use a more specific child code (such as K51.20) for billing.
What are the subcodes of K51.2?
K51.2 has 2 more specific child codes, including K51.20, K51.21.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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