All ICD10 Codes

K51.91

Non-Billable
ChapterK00–K95
Ranksubcategory
Official Description

Ulcerative colitis, unspecified, with complications

Use a more specific code (6 billable)
K51.911Ulcerative colitis, unspecified with rectal bleedingK51.912Ulcerative colitis, unspecified with intestinal obstructionK51.913Ulcerative colitis, unspecified with fistulaK51.914Ulcerative colitis, unspecified with abscessK51.918Ulcerative colitis, unspecified with other complicationK51.919Ulcerative colitis, unspecified with unspecified complications
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).
General instructions are available for the parent sections:
View CH11 NotesView K50-K52 NotesView K51 Notes

Clinical Hierarchy

BillableHas subcodes
CH11Diseases of the digestive system (K00-K95)
K50-K52Noninfective enteritis and colitis (K50-K52)
K51Ulcerative colitis
K51.9Ulcerative colitis, unspecified
K51.91Ulcerative colitis, unspecified, with complicationsNot billable
K51.911Ulcerative colitis, unspecified with rectal bleedingBillable
K51.912Ulcerative colitis, unspecified with intestinal obstructionBillable
K51.913Ulcerative colitis, unspecified with fistulaBillable
K51.914Ulcerative colitis, unspecified with abscessBillable
K51.918Ulcerative colitis, unspecified with other complicationBillable
K51.919Ulcerative colitis, unspecified with unspecified complicationsBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K51.91:

categoryK51
Ulcerative colitis
View context instructions
blockK50-K52
Noninfective enteritis and colitis (K50-K52)
View context instructions
chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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