Z18
Non-billableRetained foreign body fragments
Z18 is the ICD-10-CM code for Retained foreign body fragments. It is a non-billable category code — use a more specific child code such as Z18.0 for billing.
- Status
- Header (non-billable)
- Chapter
- Z00-Z99
- Subcodes
- 6
- Edition
- FY2026
Z00-Z99 Factors influencing health status and contact with health services
Includes
- •embedded fragment (status)
- •embedded splinter (status)
- •retained foreign body status
Excludes1 — not coded here
- •artificial joint prosthesis status (Z96.6-)
- •foreign body accidentally left during a procedure (T81.5-)
- •foreign body entering through orifice (T15-T19)
- •in situ cardiac device (Z95.-)
- •organ or tissue replaced by means other than transplant (Z96.-, Z97.-)
- •organ or tissue replaced by transplant (Z94.-)
- •personal history of retained foreign body fully removed Z87.821
- •superficial foreign body (non-embedded splinter) - code to superficial foreign body, by site
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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