ICD-10-CM · Chapter 11 · K00–K95
K55.31
Stage 1 necrotizing enterocolitis
Diseases of the digestive system
Quick facts
- Code
- K55.31
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 11 — Diseases of the digestive system
- Category
- K55 — Vascular disorders of intestine
- Specificity
- 5 characters
How coders use this code
ICD-10-CM K55.31 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of stage 1 necrotizing enterocolitis. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in K55
- K55Vascular disorders of intestine
- K55.0Acute vascular disorders of intestine
- K55.01Acute (reversible) ischemia of small intestine
- K55.011Focal (segmental) acute (reversible) ischemia of small intestine
- K55.012Diffuse acute (reversible) ischemia of small intestine
- K55.019Acute (reversible) ischemia of small intestine, extent unspecified
- K55.02Acute infarction of small intestine
- K55.021Focal (segmental) acute infarction of small intestine
- K55.022Diffuse acute infarction of small intestine
- K55.029Acute infarction of small intestine, extent unspecified
- K55.03Acute (reversible) ischemia of large intestine
- K55.031Focal (segmental) acute (reversible) ischemia of large intestine
- K55.032Diffuse acute (reversible) ischemia of large intestine
- K55.039Acute (reversible) ischemia of large intestine, extent unspecified
- K55.04Acute infarction of large intestine
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