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B10.81

Billable

Human herpesvirus 6 infection

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Human herpesvirus 6 (HHV-6) is a viral infection that commonly causes roseola infantum (a childhood illness with high fever followed by a rash) and can affect the brain, liver, and immune system. This code is used when HHV-6 infection is confirmed through testing.

Coding Tips

  • Verify the specific site of infection (e.g., encephalitis, hepatitis) as there may be more specific codes available; use B10.81 only when the infection site is not specified or is generalized
  • Distinguish between HHV-6A and HHV-6B if documented, as HHV-6B is more commonly associated with roseola infantum in infants, while HHV-6A may cause more severe disease in immunocompromised patients

Code Hierarchy

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