Is K51.9 a billable code?
No. K51.9 is a header code that groups 7 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
K51.9: Ulcerative colitis, unspecified
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
K51.9 groups related diagnoses under ulcerative colitis, unspecified. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under K51.9
- K51.90Ulcerative colitis, unspecified, without complications
- K51.911Ulcerative colitis, unspecified with rectal bleeding
- K51.912Ulcerative colitis, unspecified with intestinal obstruction
- K51.913Ulcerative colitis, unspecified with fistula
- K51.914Ulcerative colitis, unspecified with abscess
- K51.918Ulcerative colitis, unspecified with other complication
- K51.919Ulcerative colitis, unspecified with unspecified complications
K51.9 questions
What does K51.9 mean?
K51.9 is the ICD-10-CM code for Ulcerative colitis, unspecified. It is in chapter 11, Diseases of the digestive system (K00-K95).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.