ICD-10 Code A30.5 – Lepromatous leprosy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A30.5 – Lepromatous leprosy
What it is
A30.5 identifies lepromatous leprosy, the multibacillary form of Hansen disease. It reflects widespread infection with Mycobacterium leprae and is used when documentation specifically names lepromatous leprosy.
Clinical signs
Typical findings include diffuse skin lesions, nodules, and symmetric involvement with loss of sensation. Facial changes, nasal symptoms, and peripheral neuropathy may occur; clinical features vary, so refer to documentation.
When to use this code
Use A30.5 when the provider documents lepromatous leprosy, lepromatous Hansen disease, or clearly describes this subtype. Code it when the record supports the diagnosis on the encounter, not just a history of exposure.
If the note only says “leprosy” without subtype, check the record for clarification before assigning A30.5. You should also confirm whether the encounter is for active disease, follow-up, or a sequela.
Do not use for
Do not use this code for tuberculoid, borderline, or indeterminate leprosy unless lepromatous disease is documented. Do not apply it to a past history of leprosy without current disease.
Coding tip
Match the code to the exact leprosy subtype in the provider’s documentation and query if the subtype is missing.