Coding and coverage · ICD-10-CM

B97

B97.3 Retrovirus as the cause of diseases classified elsewhere

Not billable (header)Chapter 1

Report one of the more specific codes below.

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Codes under this one

  • 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
  • B97.34 Human T-cell lymphotrophic virus, type II [HTLV-II] as the cause of diseases classified elsewhere
  • B97.35 Human immunodeficiency virus, type 2 [HIV 2] as the cause of diseases classified elsewhere
  • B97.39 Other retrovirus as the cause of diseases classified elsewhere

Instructional notes

Chapter 1

Excludes2Not included here: the patient may have both; report both when both are present.
  • 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)
Use additional codeAdd a second code for the full picture.
  • code to identify resistance to antimicrobial drugs (Z16.-)
Includes
  • diseases generally recognized as communicable or transmissible

Section B95-B97

Notes
  • These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • Human immunodeficiency virus [HIV] disease (B20)

Chapter 1: Certain infectious and parasitic diseases · B95-B97 Bacterial and viral infectious agents (B95-B97)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.