B03
B03 — Smallpox
Billable / specific codeICD-10-CM
B03 is a billable, specific ICD-10-CM code for smallpox. It is valid for submission on a claim.
Notes
Additional guidance from the ICD-10-CM tabular list.
- In 1980 the 33rd World Health Assembly declared that smallpox had been eradicated.
- The classification is maintained for surveillance purposes.
Risk adjustment
B03 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How B03 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to B03.
- Alastrim
- Smallpox
- Variola(major) (minor)
- Varioloid
Questions about B03
- Is B03 a billable ICD-10-CM code?
- Yes. B03 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does B03 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Viral infections characterized by skin and mucous membrane lesions (B00-B09).