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ICD-10-CM 2027 diagnosis code

B08.01Cowpox and vaccinia not from vaccine

Not billable — use a more specific code

B08.01 is a header code, so it can't be reported by itself. Choose one of the 2 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 B08.01

B08.01 is the ICD-10-CM diagnosis code for Cowpox and vaccinia not from vaccine. It belongs to category B08 (other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified), block B00-B09 (viral infections characterized by skin and mucous membrane lesions) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within B08.0 (other orthopoxvirus infections), B08.01 is specifically for Cowpox and vaccinia not from vaccine. Related codes cover Orf virus disease (B08.02), Pseudocowpox [milker's node] (B08.03), Paravaccinia, unspecified (B08.04) and other orthopoxvirus infections (B08.09).

To report this condition, pick the subcode that matches the documentation: B08.010 (Cowpox) and B08.011 (vaccine).

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 B08.01

Notes that apply from higher levels

Instructions written at a parent level also apply to B08.01.

› From B08.0 Other orthopoxvirus infections
Excludes2
  • monkeypox (B04)
› From B08 Other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified
Excludes1
  • vesicular stomatitis virus disease (A93.8)

Broader instructions also apply from Chapter 1: Certain infectious and parasitic diseases.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about B08.01

Is B08.01 billable?

No. B08.01 is a header code. Report one of its more specific subcodes instead.