ICD10
ICD-10 Code K13.7: Other and unspecified lesions of oral mucosa
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).
When is it used?
- May be used when a clinician documents other and unspecified lesions of oral mucosa in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
11Diseases of the digestive system (K00-K95)
block
K00-K14Diseases of oral cavity and salivary glands
category
K13Other diseases of lip and oral mucosa
currentK13
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
GastroenterologistGeneral Physician
Sibling codes
K13.0Diseases of lipsbillableK13.1Cheek and lip bitingbillableK13.2Leukoplakia and other disturbances of oral epithelium, including tongueK13.3Hairy leukoplakiabillableK13.4Granuloma and granuloma-like lesions of oral mucosabillableK13.5Oral submucous fibrosisbillableK13.6Irritative hyperplasia of oral mucosabillable
Mapped diagnoses and classifications
SNOMED_CT 108111000119103high
Acquired anomaly of mouth
Source: SNOMED International ICD-10 map
SNOMED_CT 109770004high
Acquired anomaly of oral mucosa
Source: SNOMED International ICD-10 map
SNOMED_CT 109789004high
Amalgam tattoo
Source: SNOMED International ICD-10 map
SNOMED_CT 699276000high
Betel chewer's mucosa
Source: SNOMED International ICD-10 map
SNOMED_CT 235043009high
Bilirubin pigmentation of oral mucosa
Source: SNOMED International ICD-10 map
SNOMED_CT 22490002high
Bleeding of mouth
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
K13.7
Replacement codes
K13.70 — Unspecified lesions of oral mucosaK13.79 — Other lesions of oral mucosa
Common synonyms
Other and unspecified lesions of oral mucosaOther and lesions of oral mucosa
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.