B03
BillableSmallpox
B03 is the ICD-10-CM code for Smallpox. It is a billable, specific code valid for reimbursement.
- Status
- Billable
- Chapter
- A00-B99
- Edition
- FY2026
A00-B99 Certain infectious and parasitic diseases
What this means — in plain language
MedlinePlus · NIHSmallpox is a disease caused by the Variola major virus. Some experts say that over the centuries it has killed more people than all other infectious diseases combined. Worldwide vaccination stopped the spread of smallpox three decades ago. The last case was reported in 1977. Two research labs still keep small amounts of the virus. Experts fear bioterrorists could use the virus to spread disease. Smallpox spreads…
Read more about Smallpox at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Notes
- •In 1980 the 33rd World Health Assembly declared that smallpox had been eradicated.
- •The classification is maintained for surveillance purposes.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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