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K51.8

Non-billable

Other ulcerative colitis

K51.8 is the ICD-10-CM code for Other ulcerative colitis. It is a non-billable category code — use a more specific child code such as K51.80 for billing.

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

K00-K95 Diseases of the digestive system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code K51.8?
K51.8 is the ICD-10-CM code for "Other ulcerative colitis". It falls under K00-K95 Diseases of the digestive system.
Is K51.8 a billable code?
No — K51.8 is a non-billable header code. Use a more specific child code (such as K51.80) for billing.
What are the subcodes of K51.8?
K51.8 has 2 more specific child codes, including K51.80, K51.81.

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

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