ICD-10-CM category
A39 Meningococcal infection
A39 is a category, not a billable code. Report one of the 15 complete codes below.
Codes in A39
- A39.0Meningococcal meningitis
- A39.1Waterhouse-Friderichsen syndrome
- A39.2Acute meningococcemia
- A39.3Chronic meningococcemia
- A39.4Meningococcemia, unspecified
- A39.50Meningococcal carditis, unspecified
- A39.51Meningococcal endocarditis
- A39.52Meningococcal myocarditis
- A39.53Meningococcal pericarditis
- A39.81Meningococcal encephalitis
- A39.82Meningococcal retrobulbar neuritis
- A39.83Meningococcal arthritis
- A39.84Postmeningococcal arthritis
- A39.89Other meningococcal infections
- A39.9Meningococcal infection, unspecified
Outside the US? A39 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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