ICD-10 Code L01.09 – Other impetigo (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L01.09 – Other impetigo
What it is
Use this code for impetigo that does not fit a more specific type. It identifies a superficial bacterial skin infection when the record documents “other impetigo” or a comparable nonspecific form.
Clinical signs
Clinical features vary; refer to documentation. Typical impetigo findings include superficial crusted lesions, often with honey-colored crusts, and may be localized to exposed skin.
When to use this code
Assign L01.09 when the provider documents impetigo but does not specify bullous or another more defined subtype. Use it for encounters focused on diagnosis, evaluation, or follow-up of this listed form.
If the note only says “impetigo” and no further detail is available, check documentation before coding. This code is appropriate when the record clearly supports a non-bullous or unspecified “other” presentation.
Do not use for
Do not use this code for bullous impetigo or other specifically named skin infections. If the diagnosis is unclear, check documentation rather than assuming L01.09.
Coding tip
Match the code to the exact wording in the assessment; if the subtype is named, code the named subtype instead of this catch-all option.