Z18.1
Non-billableRetained metal fragments
Retained metal fragments
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- embedded fragment (status)
- embedded splinter (status)
- retained foreign body status
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- •artificial joint prosthesis statusZ96.6
- •foreign body accidentally left during a procedureT81.5
- •foreign body entering through orificeT15-T19
- •in situ cardiac deviceZ95
- •organ or tissue replaced by means other than transplant,Z96, Z97
- •organ or tissue replaced by transplantZ94
- •personal history of retained foreign body fully removedZ87.821
- superficial foreign body (non-embedded splinter) - code to superficial foreign body, by site
- •retained radioactive metal fragmentsZ18.01-Z18.09
Child Codes (3)
Related Codes(5)
Also Known As / Clinical Terms(3)
Frequently Asked Questions
What is the ICD-10 code for retained metal fragments?
The ICD-10-CM code for retained metal fragments is Z18.1. The full clinical description is "Retained metal fragments". Z18.1 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code Z18.1 mean?
ICD-10-CM code Z18.1 represents “Retained metal fragments”. It is classified under Chapter 22: Factors Influencing Health Status and Contact With Health Services and is a non-billable header code. Use a more specific child code for billing purposes.
Is Z18.1 a billable code?
No, Z18.1 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under Z18.1.
What chapter is Z18.1 in?
Z18.1 is in Chapter 22: Factors Influencing Health Status and Contact With Health Services (codes Z00-Z99).
What codes cannot be used with Z18.1?
Z18.1 has Excludes1 notes indicating codes that cannot be used together with it, including: artificial joint prosthesis status (Z96.6-); foreign body accidentally left during a procedure (T81.5-); foreign body entering through orifice (T15-T19); and 6 more.
What are the subcategories under Z18.1?
Z18.1 has 3 child codes, including: Z18.10 (Retained metal fragments, unspecified), Z18.11 (Retained magnetic metal fragments), Z18.12 (Retained nonmagnetic metal fragments).
What are the UMLS CUIs for Z18.1?
Z18.1 is linked to 1 UMLS Concept Unique Identifier: C2921327. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does Z18.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like retained metal fragments affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of Z18.1?
There is no direct ICD-11 mapping available for Z18.1 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.