B97.3
Retrovirus as the cause of diseases classified elsewhere
B97.3 is a non-billable ICD-10-CM code header for retrovirus as the cause of diseases classified elsewhere. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are B97.30 Unspecified retrovirus as the cause of diseases classified elsewhere; B97.31 Lentivirus as the cause of diseases classified elsewhere; B97.32 Oncovirus as the cause of diseases classified elsewhere; B97.33 Human T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhere and 3 more. Its coding notes include a Use additional code instruction, 1 Excludes1 entry and 5 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
When an infection is classified outside Chapter 1 and no organism is part of its code, an additional B95, B96 or B97 code identifies the organism.
Use additional code
Add the listed code as a secondary code, if known.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
- Human immunodeficiency virus [HIV] disease (B20)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (5 notes)
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Includes
Further defines or gives examples of the content of the category.
Also from chapter/block level (1 note)
- diseases generally recognized as communicable or transmissible
Notes
Also from chapter/block level (1 note)
- These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.
More specific codes under B97.3 7
- B97.30Unspecified retrovirus as the cause of diseases classified elsewhereBillable
- B97.31Lentivirus as the cause of diseases classified elsewhereBillable
- B97.32Oncovirus as the cause of diseases classified elsewhereBillable
- B97.33Human T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhereBillable
- B97.34Human T-cell lymphotrophic virus, type II [HTLV-II] as the cause of diseases classified elsewhereBillable
- B97.35Human immunodeficiency virus, type 2 [HIV 2] as the cause of diseases classified elsewhereBillable
- B97.39Other retrovirus as the cause of diseases classified elsewhereBillable