ICD-10 Code for Retrovirus
The ICD-10-CM code for retrovirus is B97.30 — Unspecified retrovirus as the cause of diseases classified elsewhere. This is the code the Alphabetic Index gives for retrovirus with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
B97.30 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which retrovirus code should you use?
The Alphabetic Index lists 7 codes under Retrovirus, as cause of disease classified elsewhere. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
Retrovirus human
| immunodeficiency, type 2 | B97.35 | Human immunodeficiency virus, type 2 [HIV 2] as the cause of diseases classified elsewhere | |
| T-cell lymphotropic › type I | B97.33 | Human T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhere | |
| T-cell lymphotropic › type II | B97.34 | Human T-cell lymphotrophic virus, type II [HTLV-II] as the cause of diseases classified elsewhere |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources