Z18.0
Z18.0 — Retained radioactive fragments
Non-billable headerICD-10-CM
Z18.0 is a non-billable header ICD-10-CM code for retained radioactive fragments. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with Z18.0
These codes carry an Excludes1 note pointing at Z18.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z18.0 alone.
Risk adjustment
Z18.0 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 Z18.0
2 child codes. Green means billable.
Related codes at this level
Codes that share Z18. If Z18.0 is not quite right, the correct code is usually one of these.
Questions about Z18.0
- Is Z18.0 a billable ICD-10-CM code?
- No. Z18.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does Z18.0 sit in the tabular list?
- Factors influencing health status and contact with health services (Z00-Z99), in the block Retained foreign body fragments (Z18).