Z18.31✓ Billable
Retained animal quills or spines
Code Hierarchy
┌21Factors influencing health status and contact with health services (Z00-Z99)├Z18Retained foreign body fragments (Z18)├Z18Retained foreign body fragments
└Z18.31Retained animal quills or spines
Not sure between two codes?
⇄ Compare Z18.31 with another code →