K13.3
✓ Billable
Hairy leukoplakia
ICD-10-CM · FY2026 · Diseases of the Digestive System
Code
K13.3
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Digestive System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code K13.3?
ICD-10-CM code K13.3 represents Hairy leukoplakia. It is a billable diagnosis code in the Diseases of the Digestive System chapter, effective October 1, 2025 – September 30, 2026.
Is K13.3 billable?
Yes. K13.3 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is K13.3 in?
K13.3 belongs to the Diseases of the Digestive System chapter (K00–K95) of ICD-10-CM.
Related codes in the K13 category
K13
Other diseases of lip and oral mucosa
Non-billable
K13.0
Diseases of lips
Billable
K13.1
Cheek and lip biting
Billable
K13.2
Leukoplakia and other disturbances of oral epithelium, including tongue
Non-billable
K13.4
Granuloma and granuloma-like lesions of oral mucosa
Billable
K13.5
Oral submucous fibrosis
Billable
K13.6
Irritative hyperplasia of oral mucosa
Billable
K13.7
Other and unspecified lesions of oral mucosa
Non-billable
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