All ICD10 Codes

K55.3

Non-Billable
ChapterK00–K95
Ranksubcategory
Official Description

Necrotizing enterocolitis

Use a more specific code (4 billable)
K55.30Necrotizing enterocolitis, unspecifiedK55.31Stage 1 necrotizing enterocolitisK55.32Stage 2 necrotizing enterocolitisK55.33Stage 3 necrotizing enterocolitis
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • necrotizing enterocolitis of newborn (P77.-)
Excludes2(Not included here. Code separately if applicable.)
  • necrotizing enterocolitis due to Clostridium difficile (A04.7-)
General instructions are available for the parent sections:
View CH11 NotesView K55 Notes

Clinical Hierarchy

BillableHas subcodes
CH11Diseases of the digestive system (K00-K95)
K55-K64Other diseases of intestines (K55-K64)
K55Vascular disorders of intestine
K55.3Necrotizing enterocolitisNot billable
K55.30Necrotizing enterocolitis, unspecifiedBillable
K55.31Stage 1 necrotizing enterocolitisBillable
K55.32Stage 2 necrotizing enterocolitisBillable
K55.33Stage 3 necrotizing enterocolitisBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K55.3:

categoryK55
Vascular disorders of intestine
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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