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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  • K08.402—

    Partial loss of teeth, unspecified cause, class II

  • K08.403—

    Partial loss of teeth, unspecified cause, class III

  • K08.404—

    Partial loss of teeth, unspecified cause, class IV

  • K08.409—

    Partial loss of teeth, unspecified cause, unspecified class

  • K08.41—

    Partial loss of teeth due to trauma

  • K08.411—

    Partial loss of teeth due to trauma, class I

  • K08.412—

    Partial loss of teeth due to trauma, class II

  • K08.413—

    Partial loss of teeth due to trauma, class III

  • K08.414—

    Partial loss of teeth due to trauma, class IV

  • K08.419—

    Partial loss of teeth due to trauma, unspecified class

  • K08.42—

    Partial loss of teeth due to periodontal diseases

  • K08.421—

    Partial loss of teeth due to periodontal diseases, class I

  • K08.422—

    Partial loss of teeth due to periodontal diseases, class II

  • K08.423—

    Partial loss of teeth due to periodontal diseases, class III

  • K08.424—

    Partial loss of teeth due to periodontal diseases, class IV

  • K08.429—

    Partial loss of teeth due to periodontal diseases, unspecified class

  • K08.43—

    Partial loss of teeth due to caries

  • K08.431—

    Partial loss of teeth due to caries, class I

  • K08.432—

    Partial loss of teeth due to caries, class II

  • K08.433—

    Partial loss of teeth due to caries, class III

  • K08.434—

    Partial loss of teeth due to caries, class IV

  • K08.439—

    Partial loss of teeth due to caries, unspecified class

  • K08.49—

    Partial loss of teeth due to other specified cause

  • K08.491—

    Partial loss of teeth due to other specified cause, class I

  • K08.492—

    Partial loss of teeth due to other specified cause, class II

  • K08.493—

    Partial loss of teeth due to other specified cause, class III

  • K08.494—

    Partial loss of teeth due to other specified cause, class IV

  • K08.499—

    Partial loss of teeth due to other specified cause, unspecified class

  • K08.5—

    Unsatisfactory restoration of tooth

  • K08.50—

    Unsatisfactory restoration of tooth, unspecified

  • K08.51—

    Open restoration margins of tooth

  • K08.52—

    Unrepairable overhanging of dental restorative materials

  • K08.53—

    Fractured dental restorative material

  • K08.530—

    Fractured dental restorative material without loss of material

  • K08.531—

    Fractured dental restorative material with loss of material

  • K08.539—

    Fractured dental restorative material, unspecified

  • K08.54—

    Contour of existing restoration of tooth biologically incompatible with oral health

  • K08.55—

    Allergy to existing dental restorative material

  • K08.56—

    Poor aesthetic of existing restoration of tooth

  • K08.59—

    Other unsatisfactory restoration of tooth

  • K08.8—

    Other specified disorders of teeth and supporting structures

  • K08.81—

    Primary occlusal trauma

  • K08.82—

    Secondary occlusal trauma

  • K08.89—

    Other specified disorders of teeth and supporting structures

  • K08.9—

    Disorder of teeth and supporting structures, unspecified

  • K09—

    Cysts of oral region, not elsewhere classified

  • K09.0—

    Developmental odontogenic cysts

  • K09.1—

    Developmental (nonodontogenic) cysts of oral region

  • K09.8—

    Other cysts of oral region, not elsewhere classified

  • K09.9—

    Cyst of oral region, unspecified

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