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ICD10

ICD-10 Code K13.2: Leukoplakia and other disturbances of oral epithelium, including tongue

K13.2 is an ICD-10 diagnosis entry used to group records related to Leukoplakia and other disturbances of oral epithelium, including tongue. 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. 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).

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 leukoplakia and other disturbances of oral epithelium, including tongue 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

Official coding notes

Excludes1 (do not code together)
  • carcinoma in situ of oral epithelium (D00.0-)
  • hairy leukoplakia (K13.3)

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

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
K13.2
Replacement codes
K13.21 — Leukoplakia of oral mucosa, including tongueK13.22 — Minimal keratinized residual ridge mucosaK13.23 — Excessive keratinized residual ridge mucosaK13.24 — Leukokeratosis nicotina palatiK13.29 — Other disturbances of oral epithelium, including tongue

Common synonyms

Leukoplakia and other disturbances of oral epithelium, including tongue

Frequently asked questions

Code details

CodeK13.2
SystemICD10
Display nameLeukoplakia and other disturbances of oral epithelium, including tongue
ChapterDiseases of the digestive system (K00-K95)
BlockDiseases of oral cavity and salivary glands

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

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.