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
PrevNext
  • K08.59—

    Other unsatisfactory restoration of tooth

  • 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

  • K09.0—

    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

  • K11.0—

    Atrophy of salivary gland

  • K11.1—

    Hypertrophy of salivary gland

  • K11.20—

    Sialoadenitis, unspecified

  • K11.21—

    Acute sialoadenitis

  • K11.22—

    Acute recurrent sialoadenitis

  • K11.23—

    Chronic sialoadenitis

  • K11.3—

    Abscess of salivary gland

  • K11.4—

    Fistula of salivary gland

  • K11.5—

    Sialolithiasis

  • K11.6—

    Mucocele of salivary gland

  • K11.7—

    Disturbances of salivary secretion

  • K11.8—

    Other diseases of salivary glands

  • K11.9—

    Disease of salivary gland, unspecified

  • K12.0—

    Recurrent oral aphthae

  • K12.1—

    Other forms of stomatitis

  • K12.2—

    Cellulitis and abscess of mouth

  • K12.30—

    Oral mucositis (ulcerative), unspecified

  • K12.31—

    Oral mucositis (ulcerative) due to antineoplastic therapy

  • K12.32—

    Oral mucositis (ulcerative) due to other drugs

  • K12.33—

    Oral mucositis (ulcerative) due to radiation

  • K12.39—

    Other oral mucositis (ulcerative)

  • K13.0—

    Diseases of lips

  • K13.1—

    Cheek and lip biting

  • K13.21—

    Leukoplakia of oral mucosa, including tongue

  • K13.22—

    Minimal keratinized residual ridge mucosa

  • K13.23—

    Excessive keratinized residual ridge mucosa

  • K13.24—

    Leukokeratosis nicotina palati

  • K13.29—

    Other disturbances of oral epithelium, including tongue

  • K13.3—

    Hairy leukoplakia

  • K13.4—

    Granuloma and granuloma-like lesions of oral mucosa

  • K13.5—

    Oral submucous fibrosis

  • K13.6—

    Irritative hyperplasia of oral mucosa

  • K13.70—

    Unspecified lesions of oral mucosa

  • K13.79—

    Other lesions of oral mucosa

  • K14.0—

    Glossitis

  • K14.1—

    Geographic tongue

  • K14.2—

    Median rhomboid glossitis

  • K14.3—

    Hypertrophy of tongue papillae

  • K14.4—

    Atrophy of tongue papillae

  • K14.5—

    Plicated tongue

  • K14.6—

    Glossodynia

PreviousPage 4 of 18Next