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B53

B53Other specified malaria

Non-billable headerICD-10-CM

B53 is a non-billable header ICD-10-CM code for other specified malaria. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with B53

These codes carry an Excludes1 note pointing at B53. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B53 alone.

  • B53.1Malaria due to simian plasmodia

Risk adjustment

B53 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.

Code to one of these instead B53

3 child codes. Green means billable.

Questions about B53

Is B53 a billable ICD-10-CM code?
No. B53 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does B53 sit in the tabular list?
Certain infectious and parasitic diseases (A00-B99), in the block Protozoal diseases (B50-B64).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.