Is B04 a billable ICD-10-CM code?

Yes. B04 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does B04 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).

B04

B04 — Monkeypox

Billable / specific codeICD-10-CM

B04 is a billable, specific ICD-10-CM code for monkeypox. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Mpox

Risk adjustment

B04 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 B04 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 B04.

Monkeypox
Mpox

Questions about B04

Is B04 a billable ICD-10-CM code?: Yes. B04 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does B04 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).