B08.01 – Cowpox and vaccinia not from vaccine

ICD-10-CM 2027 diagnosis code · Viral infections characterized by skin and mucous membrane lesions

Non-billable header

ICD-10-CM code B08.01

Code: B08.01 (claims format: B0801)
Description: Cowpox and vaccinia not from vaccine
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: B00-B09 Viral infections characterized by skin and mucous membrane lesions
Parent codes: B08 › B08.0

Billable codes under B08.01

B08.01 is a header code and cannot be used on claims. Choose the most specific code:

B08.010 – CowpoxBillable
B08.011 – Vaccinia not from vaccineBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

B08 – Other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified

Excludes1 (not coded here):

vesicular stomatitis virus disease (A93.8)

B08.0 – Other orthopoxvirus infections

Excludes2 (not included here):

monkeypox (B04)

Related codes in B08.0

B08.02 – Orf virus diseaseBillable
B08.03 – Pseudocowpox [milker's node]Billable
B08.04 – Paravaccinia, unspecifiedBillable
B08.09 – Other orthopoxvirus infectionsBillable

Frequently asked questions

What is ICD-10 code B08.01?

B08.01 is the ICD-10-CM code for cowpox and vaccinia not from vaccine, in the block B00-B09 (Viral infections characterized by skin and mucous membrane lesions).

Is B08.01 a billable code?

No. B08.01 is a header code with more specific child codes; report one of the billable codes listed above.

What category does B08.01 belong to?

It belongs to category B08 – Other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified.

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.