K55.3
Non-billableNecrotizing enterocolitis
K55.3 is the ICD-10-CM code for Necrotizing enterocolitis. It is a non-billable category code — use a more specific child code such as K55.30 for billing.
K00-K95 Diseases of the digestive system
Excludes1 — not coded here
- •necrotizing enterocolitis of newborn (P77.-)
Excludes2 — not included here
- •necrotizing enterocolitis due to Clostridium difficile (A04.7-)
Frequently asked questions
- What is ICD-10 code K55.3?
- K55.3 is the ICD-10-CM code for "Necrotizing enterocolitis". It falls under K00-K95 Diseases of the digestive system.
- Is K55.3 a billable code?
- No — K55.3 is a non-billable header code. Use a more specific child code (such as K55.30) for billing.
- What are the subcodes of K55.3?
- K55.3 has 4 more specific child codes, including K55.30, K55.31, K55.32.
- What is excluded from K55.3?
- Excludes1 (not coded here): necrotizing enterocolitis of newborn (P77.-).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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