1B21

The ICD-11 code for infections due to non-tuberculous mycobacteria is 1B21. The full clinical description is "Infections due to non-tuberculous mycobacteria".

ICD-11 code 1B21 represents “Infections due to non-tuberculous mycobacteria”. It is classified under Chapter 1: Certain Infectious or Parasitic Diseases.

1B21 is in Chapter 1: Certain Infectious or Parasitic Diseases (codes 1A00-1H0Z).

There is no direct ICD-10 mapping available for 1B21 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-10. Use the ICD-11 to ICD-10 converter to search for related codes.

ICD-11 is the latest revision of the WHO's International Classification of Diseases, succeeding ICD-10. Key differences include: a fully digital-first design, new chapters for sleep-wake disorders, sexual health, and traditional medicine, improved coding for rare diseases, and better integration with electronic health records through extension codes.

1B21 has 7 child codes, including: 1B21.0 (Pulmonary infection due to non-tuberculous mycobacterium), 1B21.1 (Non-tuberculous mycobacterial lymphadenitis), 1B21.2 (Cutaneous non-tuberculous mycobacterial infection), 1B21.3 (Disseminated non-tuberculous mycobacterial infection), and 3 more.