Z18.01 vs Z18.1
Z18.01 (Retained depleted uranium fragments) compared with Z18.1 (Retained metal fragments), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. Z18.1 carries an Excludes1 note covering Z18.01: “retained radioactive metal fragments (Z18.01-Z18.09)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| Z18.01Retained depleted uranium fragments | Z18.1Retained metal fragments | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Retained depleted uranium fragments is a billable ICD-10-CM diagnosis code (Z18.01). | Retained metal fragments is a non-billable ICD-10-CM category code (Z18.1). |
| Includes | embedded fragment (status) embedded splinter (status) retained foreign body status | embedded fragment (status) embedded splinter (status) retained foreign body status |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources