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K13.79

Other lesions of oral mucosa

Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 12 never code together
K13code
Excludes2
  • certain disorders of gingiva and edentulous alveolar ridge (K05-K06)K05-K06
  • cysts of oral region (K09.-)K09.-
  • diseases of tongue (K14.-)K14.-
  • stomatitis and related lesions (K12.-)K12.-
K00-K95chapter
Excludes2
  • certain conditions originating in the perinatal period (P04-P96)P04-P96
  • certain infectious and parasitic diseases (A00-B99)A00-B99
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
  • endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
  • injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
  • neoplasms (C00-D49)C00-D49
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 10
K13code
Includes
  • epithelial disturbances of tongue
Use additional code
  • code to identify:
  • alcohol abuse and dependence (F10.-)F10.-
  • exposure to environmental tobacco smoke (Z77.22)Z77.22
  • exposure to tobacco smoke in the perinatal period (P96.81)P96.81
  • history of tobacco dependence (Z87.891)Z87.891
  • occupational exposure to environmental tobacco smoke (Z57.31)Z57.31
  • tobacco dependence (F17.-)F17.-
  • tobacco use (Z72.0)Z72.0
K13.79code
Inclusion terms
  • Focal oral mucinosis
Index entries leading here 15
  • Insufficiency, insufficient
    • velopharyngeal
  • Atrophy, atrophic (of)
  • Mucocele
  • Lesion (s) (nontraumatic)
  • Cicatrix (adherent) (contracted) (painful) (vicious) L90.5
  • Deformity Q89.9
  • Hemorrhage, hemorrhagic (concealed) R58
  • Hypertrophy, hypertrophic
  • Pain (s) R52
  • Sore
  • Mucinosis (cutaneous) (focal) (papular) (reticular erythematous) (skin) L98.5
  • Paralysis, paralytic (complete) (incomplete) G83.9
  • Palatoplegia K13.79
  • Perforation, perforated (nontraumatic) (of)
  • Stomatorrhagia K13.79
Alongside this code 1 same parent — K13.7
K13.70 Unspecified lesions of oral mucosa
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
K13.7
Block
K00-K14
Siblings
1

Present FY2024–FY2027.