All ICD10 Codes

P77

Non-Billable
ChapterP00–P96
Rankcategory
Official Description

Necrotizing enterocolitis of newborn

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96).

CH16 Parent Instructions

Includes
  • conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later
Excludes2(Not included here)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • tetanus neonatorum (A33)

Clinical Hierarchy

CH16Certain conditions originating in the perinatal period (P00-P96)
P76-P78Digestive system disorders of newborn (P76-P78)
P77Necrotizing enterocolitis of newborn
P77.1Stage 1 necrotizing enterocolitis in newborn
P77.2Stage 2 necrotizing enterocolitis in newborn
P77.3Stage 3 necrotizing enterocolitis in newborn
P77.9Necrotizing enterocolitis in newborn, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to P77:

chapterCH16
Certain conditions originating in the perinatal period (P00-P96)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to P77. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

4 raw paths
Enterocolitis4 unique routes
necrotizing(4 variants)
in newborn→P77(4 variants)
stage 1 (without pneumatosis, without perforation)→P77
stage 2 (with pneumatosis, without perforation)→P77
stage 3 (with pneumatosis, with perforation)→P77

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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