ICD-10 Code A39.3 – Chronic meningococcemia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A39.3 – Chronic meningococcemia
What it is
A39.3 identifies chronic meningococcemia, a prolonged bloodstream infection caused by Neisseria meningitidis. Use it when documentation specifically states this chronic form rather than a localized meningococcal infection.
Clinical signs
Clinical features may include recurrent fever, malaise, and a petechial or purpuric rash. Documentation may also note migratory joint pain or other systemic findings; if unclear, check documentation.
When to use this code
Use A39.3 when the provider documents chronic meningococcemia, meningococcal septicemia, or a persistent meningococcal bloodstream infection. It is appropriate when the record shows ongoing systemic infection rather than a past history or exposure alone. If the chart only says meningococcal disease, verify the specific type before coding.
Do not use for
Do not use this code for meningococcal carrier status, meningitis without septicemia, or unspecified meningococcal infection. If the diagnosis is not clearly chronic meningococcemia, check documentation.
Coding tip
Code A39.3 only when the provider clearly documents the chronic bloodstream infection; otherwise, query for specificity before assigning the code.