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A39 Meningococcal infection

ICD-10-CM category A39 sits in Chapter 1 (Certain infectious and parasitic diseases, A00-B99). It contains 15 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

A39.5 Meningococcal heart diseaseA39.8 Other meningococcal infections

Billable codes in A39

CodeDescription
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

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