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    v1.0.28
    OpenPayerBilling CodesOther bacterial diseasesICD-10-CM a30-leprosy-hansen-s-disease
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    ICD-10-CM Code For Leprosy Hansen's Disease: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group A30 includes diagnoses for leprosy (Hansen's disease), covering indeterminate, tuberculoid, borderline, lepromatous forms, and reactions and complications related to Mycobacterium leprae infection. These ICD-10-CM diagnosis codes are used to document clinical presentations ranging from localized skin lesions and peripheral neuropathy to disseminated disease with systemic complications, capturing disease severity and nerve involvement. Accurate coding within the ICD-10-CM A30 group supports proper claim adjudication and comprehensive clinical documentation for appropriate reimbursement.

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    ICD-10-CM A30: Leprosy [Hansen's disease] Overview

    The ICD-10-CM A30 group includes diagnoses for leprosy, also known as Hansen's disease, a chronic infectious condition primarily affecting the skin and peripheral nerves. These codes describe the type and extent of Mycobacterium leprae infection and its neurologic and dermatologic manifestations. Accurate coding matters for reimbursement because it documents disease severity, treatment needs, and complications that affect claim processing.

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    When to Use

    Use a code from this group when a clinician documents leprosy or Hansen's disease and specifies the clinical form, severity, or associated reactional state. Codes are also used when documenting peripheral neuropathy or skin lesions attributable to Mycobacterium leprae infection.

    ICD-10-CM Codes

    8 rows

    ICD-10-CM CodeDescription
    A30.0Indeterminate leprosy
    A30.1Tuberculoid leprosy
    A30.2Borderline tuberculoid leprosy
    A30.3Borderline leprosy
    A30.4Borderline lepromatous leprosy
    A30.5Lepromatous leprosy
    A30.8Other forms of leprosy
    A30.9Leprosy, unspecified

    DRG Codes

    3 rows

    DRG CodeDescription
    867Other Infectious and Parasitic Diseases Diagnoses with MCC
    868Other Infectious and Parasitic Diseases Diagnoses with CC
    869Other Infectious and Parasitic Diseases Diagnoses without CC/MCC

    Typical Clinical Scenarios

    • A patient from an endemic area presents to urgent care with several hypopigmented skin patches that are anesthetic to light touch and nerve thickening of the ulnar nerve; symptoms started insidiously over months with progressive numbness in the hands. Clinical examination and slit-skin smear or biopsy confirm multibacillary leprosy requiring initiation of multi-drug therapy; a specific diagnosis from this group is assigned to document the type of leprosy. Typical codes: A30.1, A30.2
    • A middle-aged patient with a prior history of treated leprosy presents to clinic with chronic skin lesions, persistent peripheral neuropathy, and disfigurement of the face and extremities; ongoing surveillance and management for long-term sequelae are needed. Because the visit concerns an established, chronic form of Hansen’s disease with neurologic and cutaneous sequelae, a code from this group is used to indicate the chronic disease status. Typical codes: A30.3, A30.9
    • A patient is admitted acutely with painful erythematous nodules, fever, and systemic symptoms consistent with an immune-mediated reaction (erythema nodosum leprosum) complicating known lepromatous disease; hospitalization is for immunosuppressive therapy and management of systemic inflammation. A code from this group is assigned to capture active Hansen’s disease complicated by a reactional state requiring urgent treatment. Typical codes: A30.4, A30.5

    Related Codes

    A31-INFECTION-DUE-TO-OTHER-MYCOBACTERIA

    ICD-10-CM Code For Infection Due To Other Mycobacteria: Group Overview

    A32-LISTERIOSIS

    ICD-10-CM Code For Listeriosis: Group Overview

    A33-TETANUS-NEONATORUM

    ICD-10-CM Code For Tetanus Neonatorum: Group Overview

    A34-OBSTETRICAL-TETANUS

    ICD-10-CM Code For Obstetrical Tetanus: Group Overview

    A35-OTHER-TETANUS

    ICD-10-CM Code For Other Tetanus: Group Overview

    A36-DIPHTHERIA

    ICD-10-CM Code For Diphtheria: Group Overview

    A37-WHOOPING-COUGH

    ICD-10-CM Code For Whooping Cough: Group Overview

    A38-SCARLET-FEVER

    ICD-10-CM Code For Scarlet Fever: Group Overview

    A39-MENINGOCOCCAL-INFECTION

    ICD-10-CM Code For Meningococcal Infection: Group Overview

    A41-OTHER-SEPSIS

    ICD-10-CM Code For Other Sepsis: Group Overview

    Showing 1–10 of 16

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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