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ALL MEDICAL CODES IN CATEGORY I. Certain infectious and parasitic diseases

2025 ICD-10-CM code A30.4

Borderline lepromatous leprosy (BL leprosy).

Lepromatous leprosy, the most severe form of leprosy, is a chronic bacterial infection causing skin lesions, nerve damage, and disfigurement.

Other specified rickettsioses. This code is used for rickettsiosis not classified elsewhere.

Borderline tuberculoid leprosy (BT leprosy).