K55.3
Non-billableNecrotizing enterocolitis
Necrotizing enterocolitis
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •angioectasia (angiodysplasia) duodenumK31.81
- •necrotizing enterocolitis due to Clostridium difficileA04.7
Child Codes (4)
Related Codes(5)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(7)
Frequently Asked Questions
What is the ICD-10 code for necrotizing enterocolitis?
The ICD-10-CM code for necrotizing enterocolitis is K55.3. The full clinical description is "Necrotizing enterocolitis". K55.3 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code K55.3 mean?
ICD-10-CM code K55.3 represents “Necrotizing enterocolitis”. It is classified under Chapter 11: Diseases of the Digestive System and is a non-billable header code. Use a more specific child code for billing purposes.
Is K55.3 a billable code?
No, K55.3 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under K55.3.
What chapter is K55.3 in?
K55.3 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What codes cannot be used with K55.3?
K55.3 has Excludes1 notes indicating codes that cannot be used together with it, including: necrotizing enterocolitis of newborn (P77.-).
What are the subcategories under K55.3?
K55.3 has 4 child codes, including: K55.30 (Necrotizing enterocolitis, unspecified), K55.31 (Stage 1 necrotizing enterocolitis), K55.32 (Stage 2 necrotizing enterocolitis), K55.33 (Stage 3 necrotizing enterocolitis).
What are the UMLS CUIs for K55.3?
K55.3 is linked to 1 UMLS Concept Unique Identifier: C0520459. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does K55.3 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like necrotizing enterocolitis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of K55.3?
K55.3 maps to the ICD-11 code: DA97.0 (Angiodysplasia of small intestine).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.