1. K04 Diseases of pulp and periapical tissues

    1. K04.0 Pulpitis

      Inclusion term(s):

      • Acute pulpitis
      • Chronic (hyperplastic) (ulcerative) pulpitis
      1. K04.01 Reversible pulpitis

      2. K04.02 Irreversible pulpitis

    2. K04.1 Necrosis of pulp

      Inclusion term(s):

      • Pulpal gangrene
    3. K04.2 Pulp degeneration

      Inclusion term(s):

      • Denticles
      • Pulpal calcifications
      • Pulpal stones
    4. K04.3 Abnormal hard tissue formation in pulp

      Inclusion term(s):

      • Secondary or irregular dentine
    5. K04.4 Acute apical periodontitis of pulpal origin

      Inclusion term(s):

      • Acute apical periodontitis NOS
    6. K04.5 Chronic apical periodontitis

      Inclusion term(s):

      • Apical or periapical granuloma
      • Apical periodontitis NOS
    7. K04.6 Periapical abscess with sinus

      Inclusion term(s):

      • Dental abscess with sinus
      • Dentoalveolar abscess with sinus
    8. K04.7 Periapical abscess without sinus

      Inclusion term(s):

      • Dental abscess without sinus
      • Dentoalveolar abscess without sinus
    9. K04.8 Radicular cyst

      Inclusion term(s):

      • Apical (periodontal) cyst
      • Periapical cyst
      • Residual radicular cyst
    10. K04.9 Other and unspecified diseases of pulp and periapical tissues

      1. K04.90 Unspecified diseases of pulp and periapical tissues

      2. K04.99 Other diseases of pulp and periapical tissues

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.