K13.21

Billable

Leukoplakia of oral mucosa, including tongue

K13.21 is the ICD-10-CM code for Leukoplakia of oral mucosa, including tongue. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
K00-K95
Parent
K13.2
Edition
FY2026

K00-K95 Diseases of the digestive system

Includes

  • Leukokeratosis of oral mucosa
  • Leukoplakia of gingiva, lips, tongue

Excludes1 — not coded here

  • hairy leukoplakia (K13.3)
  • leukokeratosis nicotina palati (K13.24)

Frequently asked questions

What is ICD-10 code K13.21?
K13.21 is the ICD-10-CM code for "Leukoplakia of oral mucosa, including tongue". It falls under K00-K95 Diseases of the digestive system.
Is K13.21 a billable code?
Yes — K13.21 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from K13.21?
Excludes1 (not coded here): hairy leukoplakia (K13.3); leukokeratosis nicotina palati (K13.24).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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