1B21 Infections due to non-tuberculous mycobacteria

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

Any condition caused by an infection with Mycobacteria excluding infections due to Mycobacterium tuberculosis complex and Mycobacterium leprae. These conditions commonly present with lung disease; however, symptoms are dependent on the site of infection. Transmission is by direct contact with non-tuberculous Mycobacteria in the environment. Confirmation is by identification of non-tuberculous Mycobacteria from the affected site(s).

exclusions

• Leprosy  (1B20)
• Tuberculosis  (1B10-1B1Z)

sections/codes in this section ()

• Pulmonary infection due to non-tuberculous mycobacterium  (1B21.0)
• Non-tuberculous mycobacterial lymphadenitis  (1B21.1)
• Cutaneous non-tuberculous mycobacterial infection  (1B21.2)
• Disseminated non-tuberculous mycobacterial infection  (1B21.3)
• Gastrointestinal non-tuberculous mycobacterial infection  (1B21.4)
• Non-tuberculous mycobacterial infection of other specified site  (1B21.Y)
• Non-tuberculous mycobacterial infection of unspecified site  (1B21.Z)

postcoordination

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