W45
Non-billableForeign body or object entering through skin
Foreign body or object entering through skin
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
- foreign body or object embedded in skin
- nail embedded in skin
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
7th Character Definitions
- A - initial encounter
- D - subsequent encounter
- S - sequela
Child Codes (2)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(3)
Frequently Asked Questions
What is the ICD-10 code for foreign body or object entering through skin?
The ICD-10-CM code for foreign body or object entering through skin is W45. The full clinical description is "Foreign body or object entering through skin". W45 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code W45 mean?
ICD-10-CM code W45 represents “Foreign body or object entering through skin”. It is classified under Chapter 21: External Causes of Morbidity and is a non-billable header code. Use a more specific child code for billing purposes.
Is W45 a billable code?
No, W45 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under W45.
What chapter is W45 in?
W45 is in Chapter 21: External Causes of Morbidity (codes V00-Y99).
What codes cannot be used with W45?
W45 has Excludes1 notes indicating codes that cannot be used together with it, including: assault (X92-Y09); contact or collision with animals or persons (W50-W64); exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-); and 1 more.
What are the subcategories under W45?
W45 has 2 child codes, including: W45.0 (Nail entering through skin), W45.8 (Other foreign body or object entering through skin).
What are the UMLS CUIs for W45?
W45 is linked to 3 UMLS Concept Unique Identifiers: C0479142, C4290473, C4290474. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does W45 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like foreign body or object entering through skin 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 W45?
W45 maps to the ICD-11 code: PA8Z (Unintentional exposure to object, unspecified).
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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.