All ICD10 Codes
Chapter 11

K00–K95: Diseases of the Digestive System

Diseases of the Digestive System diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
All CodesBillable Only
Internal Codes
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  • K05.212|

    Aggressive periodontitis, localized, moderate

  • K05.213|

    Aggressive periodontitis, localized, severe

  • K05.219|

    Aggressive periodontitis, localized, unspecified severity

  • K05.221|

    Aggressive periodontitis, generalized, slight

  • K05.222|

    Aggressive periodontitis, generalized, moderate

  • K05.223|

    Aggressive periodontitis, generalized, severe

  • K05.229|

    Aggressive periodontitis, generalized, unspecified severity

  • K05.30|

    Chronic periodontitis, unspecified

  • K05.311|

    Chronic periodontitis, localized, slight

  • K05.312|

    Chronic periodontitis, localized, moderate

  • K05.313|

    Chronic periodontitis, localized, severe

  • K05.319|

    Chronic periodontitis, localized, unspecified severity

  • K05.321|

    Chronic periodontitis, generalized, slight

  • K05.322|

    Chronic periodontitis, generalized, moderate

  • K05.323|

    Chronic periodontitis, generalized, severe

  • K05.329|

    Chronic periodontitis, generalized, unspecified severity

  • K05.4|

    Periodontosis

  • K05.5|

    Other periodontal diseases

  • K05.6|

    Periodontal disease, unspecified

  • K06.010|

    Localized gingival recession, unspecified

  • K06.011|

    Localized gingival recession, minimal

  • K06.012|

    Localized gingival recession, moderate

  • K06.013|

    Localized gingival recession, severe

  • K06.020|

    Generalized gingival recession, unspecified

  • K06.021|

    Generalized gingival recession, minimal

  • K06.022|

    Generalized gingival recession, moderate

  • K06.023|

    Generalized gingival recession, severe

  • K06.1|

    Gingival enlargement

  • K06.2|

    Gingival and edentulous alveolar ridge lesions associated with trauma

  • K06.3|

    Horizontal alveolar bone loss

  • K06.8|

    Other specified disorders of gingiva and edentulous alveolar ridge

  • K06.9|

    Disorder of gingiva and edentulous alveolar ridge, unspecified

  • K08.0|

    Exfoliation of teeth due to systemic causes

  • K08.101|

    Complete loss of teeth, unspecified cause, class I

  • K08.102|

    Complete loss of teeth, unspecified cause, class II

  • K08.103|

    Complete loss of teeth, unspecified cause, class III

  • K08.104|

    Complete loss of teeth, unspecified cause, class IV

  • K08.109|

    Complete loss of teeth, unspecified cause, unspecified class

  • K08.111|

    Complete loss of teeth due to trauma, class I

  • K08.112|

    Complete loss of teeth due to trauma, class II

  • K08.113|

    Complete loss of teeth due to trauma, class III

  • K08.114|

    Complete loss of teeth due to trauma, class IV

  • K08.119|

    Complete loss of teeth due to trauma, unspecified class

  • K08.121|

    Complete loss of teeth due to periodontal diseases, class I

  • K08.122|

    Complete loss of teeth due to periodontal diseases, class II

  • K08.123|

    Complete loss of teeth due to periodontal diseases, class III

  • K08.124|

    Complete loss of teeth due to periodontal diseases, class IV

  • K08.129|

    Complete loss of teeth due to periodontal diseases, unspecified class

  • K08.131|

    Complete loss of teeth due to caries, class I

  • K08.132|

    Complete loss of teeth due to caries, class II

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