All ICD10 Codes

K51.21

Non-Billable
ChapterK00–K95
Ranksubcategory
Official Description

Ulcerative (chronic) proctitis with complications

Use a more specific code (6 billable)
K51.211Ulcerative (chronic) proctitis with rectal bleedingK51.212Ulcerative (chronic) proctitis with intestinal obstructionK51.213Ulcerative (chronic) proctitis with fistulaK51.214Ulcerative (chronic) proctitis with abscessK51.218Ulcerative (chronic) proctitis with other complicationK51.219Ulcerative (chronic) proctitis 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
K51.2Ulcerative (chronic) proctitis
K51.21Ulcerative (chronic) proctitis with complicationsNot billable
K51.211Ulcerative (chronic) proctitis with rectal bleedingBillable
K51.212Ulcerative (chronic) proctitis with intestinal obstructionBillable
K51.213Ulcerative (chronic) proctitis with fistulaBillable
K51.214Ulcerative (chronic) proctitis with abscessBillable
K51.218Ulcerative (chronic) proctitis with other complicationBillable
K51.219Ulcerative (chronic) proctitis with unspecified complicationsBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K51.21:

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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