Is U09 a billable ICD-10-CM code?

No. U09 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does U09 sit in the tabular list?

Codes for special purposes (U00-U85), in the block Provisional assignment of new diseases of uncertain etiology or emergency use (U00-U49).

U09

U09 — Post COVID-19 condition

Non-billable headerICD-10-CM

U09 is a non-billable header ICD-10-CM code for post covid-19 condition. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with U09

These codes carry an Excludes1 note pointing at U09. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading U09 alone.

Z86.16Personal history of COVID-19

Risk adjustment

U09 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 U09

1 child code. Green means billable.

U09.9Post COVID-19 condition, unspecified

Questions about U09

Is U09 a billable ICD-10-CM code?: No. U09 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does U09 sit in the tabular list?: Codes for special purposes (U00-U85), in the block Provisional assignment of new diseases of uncertain etiology or emergency use (U00-U49).