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K13Non-billableSave

K13 - Other diseases of lip and oral mucosa

ICD-10-CM Chapter 11: Diseases of the digestive system · K00-K14 Diseases of oral cavity and salivary glands (K00-K14) · Top-level category · FY2027

Coding Guidance

K13 is a non-billable heading. Report one of the 8 more specific codes below.

Includes, Excludes and Coding Notes

IncludesFrom K13

Conditions this code covers.

  • epithelial disturbances of tongue
Excludes 2 — Not Included HereFrom K13

Not part of this code; report both codes when the patient has both conditions.

  • certain disorders of gingiva and edentulous alveolar ridge (K05-K06)
  • cysts of oral region (K09.-)
  • diseases of tongue (K14.-)
  • stomatitis and related lesions (K12.-)
Use Additional CodeFrom K13

Add a secondary code to identify the associated condition or cause when it is documented.

  • code to identify:
  • alcohol abuse and dependence (F10.-)
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)
Excludes 2 — Not Included HereFrom Chapter K00-K95

Not part of this code; report both codes when the patient has both conditions.

  • 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)

More Specific Codes (8)

K13.0Diseases of lips→K13.1Cheek and lip biting→K13.2Leukoplakia and other disturbances of oral epithelium, including tongue→K13.3Hairy leukoplakia→K13.4Granuloma and granuloma-like lesions of oral mucosa→K13.5Oral submucous fibrosis→K13.6Irritative hyperplasia of oral mucosa→K13.7Other and unspecified lesions of oral mucosa→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with K13.