ICD-10-CM 2027 diagnosis code
B97.3Retrovirus as the cause of diseases classified elsewhere
B97.3 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About B97.3
B97.3 is the ICD-10-CM diagnosis code for retrovirus as the cause of diseases classified elsewhere. It belongs to category B97 (viral agents as the cause of diseases classified elsewhere), block B95-B97 (bacterial and viral infectious agents) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.
Within B97 (viral agents as the cause of diseases classified elsewhere), B97.3 is specifically for retrovirus as the cause of diseases classified elsewhere. Related codes cover adenovirus as the cause of diseases classified elsewhere (B97.0), enterovirus as the cause of diseases classified elsewhere (B97.1), coronavirus as the cause of diseases classified elsewhere (B97.2), respiratory syncytial virus as the cause of diseases classified elsewhere (B97.4), Reovirus as the cause of diseases classified elsewhere (B97.5), Parvovirus as the cause of diseases classified elsewhere (B97.6), papillomavirus as the cause of diseases classified elsewhere (B97.7) and other viral agents as the cause of diseases classified elsewhere (B97.8).
To report this condition, pick the subcode that matches the documentation: B97.30 (elsewhere), B97.31 (elsewhere), B97.32 (elsewhere), B97.33 (elsewhere), B97.34 (elsewhere), B97.35 (elsewhere) and B97.39 (elsewhere).
Don't report B97.3 together with the conditions in its Excludes1 note: Human immunodeficiency virus [HIV] disease (B20).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under B97.3
- 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
Coding notes
- Human immunodeficiency virus [HIV] disease (B20)
Notes that apply from higher levels
Instructions written at a parent level also apply to B97.3.
Broader instructions also apply from B95-B97 Bacterial and viral infectious agents and Chapter 1: Certain infectious and parasitic diseases.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about B97.3
Is B97.3 billable?
- No. B97.3 is a header code. Report one of its more specific subcodes instead.