B97 – Viral agents as the cause of diseases classified elsewhere
ICD-10-CM 2027 diagnosis code · Bacterial and viral infectious agents
ICD-10-CM code
B97
- Code
B97(claims format:B97)- Description
- Viral agents as the cause of diseases classified elsewhere
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B95-B97 Bacterial and viral infectious agents
Billable codes under B97
B97 is a header code and cannot be used on claims. Choose the most specific code:
- B97.0 – Adenovirus as the cause of diseases classified elsewhereBillable
- B97.1 – Enterovirus as the cause of diseases classified elsewhereHeader (more codes below)
- B97.2 – Coronavirus as the cause of diseases classified elsewhereHeader (more codes below)
- B97.3 – Retrovirus as the cause of diseases classified elsewhereHeader (more codes below)
- B97.4 – Respiratory syncytial virus as the cause of diseases classified elsewhereBillable
- B97.5 – Reovirus as the cause of diseases classified elsewhereBillable
- B97.6 – Parvovirus as the cause of diseases classified elsewhereBillable
- B97.7 – Papillomavirus as the cause of diseases classified elsewhereBillable
- B97.8 – Other viral agents as the cause of diseases classified elsewhereHeader (more codes below)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block B95-B97
Notes:
- These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.
Frequently asked questions
What is ICD-10 code B97?
B97 is the ICD-10-CM code for viral agents as the cause of diseases classified elsewhere, in the block B95-B97 (Bacterial and viral infectious agents).
Is B97 a billable code?
No. B97 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.