Viral agents as the cause of diseases classified elsewhere (B97) ICD-10-CM
The B97 code range covers viral agents as the cause of diseases classified elsewhere with 25 ICD-10-CM diagnosis codes. 20 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the B97 Range 25 codes · 20 billable
- B97 Viral agents as the cause of diseases classified elsewhereNon-billable
- B97.0 Adenovirus as the cause of diseases classified elsewhere
- B97.1 Enterovirus as the cause of diseases classified elsewhereNon-billable
- B97.10 Unspecified enterovirus as the cause of diseases classified elsewhere
- B97.11 Coxsackievirus as the cause of diseases classified elsewhere
- B97.12 Echovirus as the cause of diseases classified elsewhere
- B97.19 Other enterovirus as the cause of diseases classified elsewhere
- B97.2 Coronavirus as the cause of diseases classified elsewhereNon-billable
- B97.21 SARS-associated coronavirus as the cause of diseases classified elsewhere
- B97.29 Other coronavirus as the cause of diseases classified elsewhere
- B97.3 Retrovirus as the cause of diseases classified elsewhereNon-billable
- 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
- B97.4 Respiratory syncytial virus as the cause of diseases classified elsewhere
- B97.5 Reovirus as the cause of diseases classified elsewhere
- B97.6 Parvovirus as the cause of diseases classified elsewhere
- B97.7 Papillomavirus as the cause of diseases classified elsewhere
- B97.8 Other viral agents as the cause of diseases classified elsewhereNon-billable
- B97.81 Human metapneumovirus as the cause of diseases classified elsewhere
- B97.89 Other viral agents as the cause of diseases classified elsewhere
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the B97 range.
Chorioamnionitis
INFLAMMATION of the placental membranes (CHORION; AMNION) and connected tissues such as fetal BLOOD VESSELS and UMBILICAL CORD. It is often associated with intrauterine ascending infections during PREGNANCY.
Phlebovirus
A genus of the family BUNYAVIRIDAE comprising many viruses, most of which are transmitted by Phlebotomus flies and cause PHLEBOTOMUS FEVER. The type species is RIFT VALLEY FEVER VIRUS.
Severe Fever with Thrombocytopenia Syndrome
A tick-borne infection with SEVERE FEVER WITH THROMBOCYTOPENIA SYNDROME BUNYAVIRUS of the genus Phlebovirus. It is associated with fever, THROMBOCYTOPENIA; LEUKOCYTOPENIA, and multiorgan dysfunction. It is found in parts of Asia including China, Japan, Korea and Vietnam and can be transmitted from infected domestic animals and humans.
About the B97 Code Range
The B97 ICD-10 code series identifies specific viral agents causing diseases classified elsewhere, aiding precise documentation of viral causes in various illnesses.
This section covers viruses like adenovirus (B97.0), enterovirus (B97.1), coronavirus (B97.2), and retrovirus (B97.3), among others. For example, adenoviral infections, often called "adenoviral bronchitis" or "adenoviral eye disease," are coded under B97.0, while enterovirus-related conditions such as enteroviral neurological disease or Coxsackie virus infections fall under B97.10 to B97.19. Coronavirus-related diseases, including Middle East respiratory syndrome, are documented with codes starting at B97.2. Retroviruses, including Human T-cell lymphotrophic viruses (HTLV-I, HTLV-II) and HIV-2, have specific codes from B97.3 through B97.39. Other entries cover respiratory syncytial virus (B97.4), papillomaviruses linked to various intraepithelial neoplasias (B97.7), and additional viral agents like human metapneumovirus (B97.81). This code group enables coders to assign the exact viral cause to diseases primarily classified under other categories, critical for accurate patient records and epidemiological tracking.
Questions About This Page
How many billable codes are in the B97 range?
Of the 25 codes in this range, 20 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the B97 range classify?
The range classifies viral agents as the cause of diseases classified elsewhere. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
