Z99
Z99 — Dependence on enabling machines and devices, not elsewhere classified
Non-billable headerICD-10-CM
Z99 is a non-billable header ICD-10-CM code for dependence on enabling machines and devices, 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 Z99
These codes carry an Excludes1 note pointing at Z99. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z99 alone.
Risk adjustment
Z99 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 Z99
5 child codes. Green means billable.
Questions about Z99
- Is Z99 a billable ICD-10-CM code?
- No. Z99 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does Z99 sit in the tabular list?
- Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).