A39.9

ICD-10Billable

Meningococcal infection, unspecified

Official ICD-10-CM descriptor (FY2026)

Meningococcal infection, unspecified

A39.9 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Meningococcal disease NOS

Related codes in A39

A39.0Meningococcal meningitis
A39.1Waterhouse-Friderichsen syndrome
A39.2Acute meningococcemia
A39.3Chronic meningococcemia
A39.4Meningococcemia, unspecified
A39.5Meningococcal heart diseasecategory
A39.8Other meningococcal infectionscategory

Where this code sits

Chapter: 1. Certain infectious and parasitic diseases (A00-B99)
Block: Other bacterial diseases (A30-A49)
Parent code: A39

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.