ICD-10 Code L01 – Impetigo (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L01 – Impetigo
What it is
L01 identifies impetigo, a superficial bacterial skin infection. It is used when the diagnosis is documented without a more specific subtype or site.
Clinical signs
Common findings include small vesicles, pustules, or erosions that rupture and form honey-colored crusts. Clinical features vary; refer to documentation.
When to use this code
Use L01 when the provider documents impetigo and does not specify a more detailed ICD-10-CM subcategory. It may apply to localized or widespread superficial infection, if the record supports that diagnosis. Code only what is documented; check for a more specific code if the note names a type or associated condition.
Do not use for
Do not use L01 for cellulitis, abscess, or other deeper skin infections. Do not assign it when impetigo is not documented or when a more specific code is available.
Coding tip
Review the assessment and skin description carefully, then code the most specific documented impetigo term.