2022 ICD-10-CM Code K55.3

Necrotizing enterocolitis

Version 2021

Not Valid for Submission

ICD-10:K55.3
Short Description:Necrotizing enterocolitis
Long Description:Necrotizing enterocolitis

Code Classification

  • Diseases of the digestive system (K00–K93)
    • Other diseases of intestines (K55-K64)
      • Vascular disorders of intestine (K55)

K55.3 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of necrotizing enterocolitis. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Necrotizing enterocolitis

Non-specific codes like K55.3 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for necrotizing enterocolitis:

  • BILLABLE CODE - Use K55.30 for Necrotizing enterocolitis, unspecified
  • BILLABLE CODE - Use K55.31 for Stage 1 necrotizing enterocolitis
  • BILLABLE CODE - Use K55.32 for Stage 2 necrotizing enterocolitis
  • BILLABLE CODE - Use K55.33 for Stage 3 necrotizing enterocolitis

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code K55.3:


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

Clinical Information

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018