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A93

A93Other arthropod-borne viral fevers, not elsewhere classified

Non-billable headerICD-10-CM

A93 is a non-billable header ICD-10-CM code for other arthropod-borne viral fevers, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with A93

These codes carry an Excludes1 note pointing at A93. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading A93 alone.

  • B08Other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified

Risk adjustment

A93 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 A93

4 child codes. Green means billable.

Questions about A93

Is A93 a billable ICD-10-CM code?
No. A93 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does A93 sit in the tabular list?
Certain infectious and parasitic diseases (A00-B99), in the block Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99).
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.