Leprosy [Hansen's disease] (A30) ICD-10-CM
The A30 code range covers leprosy [hansen's disease] with 9 ICD-10-CM diagnosis codes. 8 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- infection due to Mycobacterium leprae
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- sequelae of leprosy B92
Codes in the A30 Range 9 codes · 8 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A30 range.
Leprosy
A chronic granulomatous infection caused by MYCOBACTERIUM LEPRAE. The granulomatous lesions are manifested in the skin, the mucous membranes, and the peripheral nerves. Two polar or principal types are lepromatous and tuberculoid.
Leprosy, Borderline
A form of LEPROSY in which there are clinical manifestations of both principal types (lepromatous and tuberculoid). The disease may shift toward one of these two polar or principal forms.
Leprosy, Lepromatous
A chronic communicable infection which is a principal or polar form of LEPROSY. This disorder is caused by MYCOBACTERIUM LEPRAE and produces diffuse granulomatous skin lesions in the form of nodules, macules, or papules. The peripheral nerves are involved symmetrically and neural sequelae occur in the advanced stage.
Leprosy, Tuberculoid
A principal or polar form of LEPROSY in which the skin lesions are few and are sharply demarcated. Peripheral nerve involvement is pronounced and may be severe. Unlike lepromatous leprosy (LEPROSY, LEPROMATOUS), the lepromin test is positive. Tuberculoid leprosy is rarely a source of infection to others.
About the A30 Code Range
Leprosy, also called Hansen's disease, is a long-lasting infection caused by Mycobacterium leprae. It affects the skin, the linings of body passages, and nerves outside the brain and spinal cord.
The subdivisions distinguish indeterminate A30.0, tuberculoid A30.1, and lepromatous A30.5 leprosy. Borderline forms have separate subdivisions: borderline tuberculoid A30.2, borderline A30.3, and borderline lepromatous A30.4. Other forms A30.8 and unspecified leprosy A30.9 complete the category.
Questions About This Page
How many billable codes are in the A30 range?
Of the 9 codes in this range, 8 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the A30 range classify?
The range classifies leprosy [hansen's disease]. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
