Z18.0Header code — not billable
Retained radioactive fragments
- Chapter
- 21. Factors influencing health status and contact with health services
- Category
- Z18
- Effective date
- October 1, 2026
Related codes in category Z18
Z18Retained foreign body fragmentsZ18.01Retained depleted uranium fragmentsYesZ18.09Other retained radioactive fragmentsYesZ18.1Retained metal fragmentsZ18.10Retained metal fragments, unspecifiedYesZ18.11Retained magnetic metal fragmentsYesZ18.12Retained nonmagnetic metal fragmentsYesZ18.2Retained plastic fragmentsYesZ18.3Retained organic fragmentsZ18.31Retained animal quills or spinesYesZ18.32Retained toothYesZ18.33Retained wood fragmentsYes
Frequently asked questions
What is ICD-10 code Z18.0?
Z18.0 is an ICD-10-CM diagnosis code for Retained radioactive fragments.
Is Z18.0 a billable code?
No. Z18.0 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is Z18.0 in?
Z18.0 falls under Chapter 21: Factors influencing health status and contact with health services.
When did Z18.0 become effective?
Z18.0 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Z18.0?
Z18.0 belongs to category Z18, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.