ICD-10 Code B85.2 – Pediculosis, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B85.2 – Pediculosis, unspecified
What it is
B85.2 identifies pediculosis when the type of lice is not specified. Use it for a lice infestation documented without stating whether it is head, body, or pubic lice.
Clinical signs
Typical findings include itching, visible lice or nits, and scalp or skin irritation. Clinical features vary; refer to documentation if the note does not clearly identify the infestation site.
When to use this code
Use B85.2 when the provider documents pediculosis but does not specify the lice type or body site. It also fits cases where the record confirms infestation, yet the details are incomplete for a more specific code.
If the chart later identifies head, body, or pubic lice, code the more specific diagnosis instead. Check documentation when the note uses only general terms such as “lice infestation.”
Do not use for
Do not use this code when the record clearly identifies a specific type of pediculosis. Do not use it for itching or rash alone without documentation of lice infestation.
Coding tip
Code the most specific lice type documented, and default to B85.2 only when the provider leaves the infestation unspecified.