1. P77 Necrotizing enterocolitis of newborn

    1. P77.1 Stage 1 necrotizing enterocolitis in newborn

      Inclusion term(s):

      • Necrotizing enterocolitis without pneumatosis, without perforation
    2. P77.2 Stage 2 necrotizing enterocolitis in newborn

      Inclusion term(s):

      • Necrotizing enterocolitis with pneumatosis, without perforation
    3. P77.3 Stage 3 necrotizing enterocolitis in newborn

      Inclusion term(s):

      • Necrotizing enterocolitis with perforation
      • Necrotizing enterocolitis with pneumatosis and perforation
    4. P77.9 Necrotizing enterocolitis in newborn, unspecified

      Inclusion term(s):

      • Necrotizing enterocolitis in newborn, NOS
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.