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B97.39

Billable

Other retrovirus as the cause of diseases classified elsewhere

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

What This Code Means

This code identifies a retrovirus (a type of virus that includes HIV and similar viruses) other than HIV as the underlying cause of a disease or condition documented in the patient's medical record. It is used as a secondary code to indicate the infectious agent responsible for the patient's illness.

Coding Tips

  • This is a cause-of-disease code and should be used as a secondary diagnosis code paired with the primary condition it caused; never use it as the primary diagnosis
  • Verify the specific retrovirus type is documented in the medical record; if HIV is confirmed, use B20 instead; if the retrovirus type is specified (like HTLV-1 or HTLV-2), consider using more specific codes like B97.33 or B97.34

Code Hierarchy

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