2027 ICD-10-CM Diagnosis Code A30Leprosy [Hansen's disease]

ICD-10-CM Codes›A00–B99›A30-A49›A30

ICD-10-CM A30
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

A30 is a non-billable ICD-10-CM category code for leprosy [Hansen's disease], so it cannot be submitted on claims. Use a more specific code from this category instead, such as A30.0, A30.1, A30.2, and A30.3.

Code Identity

ICD-10-CM Code
A30
Billable Status
No — Non-Billable Category
Code Describes
Leprosy [Hansen's disease]
Short Description
Leprosy [Hansen's disease]
Same as the full description in the CMS dataset.
Chapter
A30-A49
Other bacterial diseases

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA30-A49Other bacterial diseases
CategoryA30Leprosy [Hansen's disease]
This CodeA30Leprosy [Hansen's disease]

Specific Coding for Leprosy [Hansen's disease]Overview

Non-specific codes like A30 require more characters. Use one of these billable codes instead:

  • Use A30.0 for Indeterminate leprosy

  • Use A30.1 for Tuberculoid leprosy

  • Use A30.2 for Borderline tuberculoid leprosy

  • Use A30.3 for Borderline leprosy

  • Use A30.4 for Borderline lepromatous leprosy

  • Use A30.5 for Lepromatous leprosy

  • Use A30.8 for Other forms of leprosy

  • Use A30.9 for Leprosy, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to A30: its own notes plus those printed at Chapter 1. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

On A30 itself
  • infection due to Mycobacterium leprae
From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • diseases generally recognized as communicable or transmissible

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • sequelae of leprosy (B92)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • code to identify resistance to antimicrobial drugs (Z16.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name A30, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming A30: its condition is not part of those codes, and both may be reported when the patient has both.

  • A31 Infection due to other mycobacteria
    leprosy (A30.-)

Code First 4

These codes say to code first a condition named in the note, and A30 is one of the conditions named.

  • H22 Disorders of iris and ciliary body in diseases classified elsewhere
    leprosy (A30.-)
  • H32 Chorioretinal disorders in diseases classified elsewhere
    leprosy (A30.-)
  • M01 Direct infections of joint in infectious and parasitic diseases classified elsewhere
    leprosy [Hansen's disease] (A30.-)
  • M63 Disorders of muscle in diseases classified elsewhere
    leprosy (A30.-)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical InformationClinical

  • 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.

Patient EducationClinical

Mycobacterial Infections

Mycobacteria are a type of germ. There are many different kinds. The most common one causes tuberculosis. Another one causes leprosy. Still others cause infections that are called atypical mycobacterial infections. They aren't "typical" because they don't cause tuberculosis.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About A30Overview

What is the ICD-10 code for leprosy [Hansen's disease]?

A30 is the ICD-10-CM category for leprosy [Hansen's disease], but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is A30 (Leprosy [Hansen's disease]) a billable code?

No. This is a category header that groups the codes for leprosy [Hansen's disease], and headers cannot be submitted on claims. Claims for leprosy [Hansen's disease] need a more specific code from this category, such as A30.0, A30.1, and A30.2.

Can A30 be reported with B92?

Not as a rule. The Excludes1 note on A30 lists "sequelae of leprosy (B92)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).