W45

ICD-10Non-billable category

Foreign body or object entering through skin

Official ICD-10-CM descriptor (FY2026)

Foreign body or object entering through skin

W45 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Includes

  • foreign body or object embedded in skin
  • nail embedded in skin

Excludes2

Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.

  • contact with hand tools (nonpowered) (powered) (W27-W29)
  • contact with other sharp object(s) (W26.-)
  • contact with sharp glass (W25.-)
  • struck by objects (W20-W22)

7th character

  • The appropriate 7th character is to be added to each code from category W45

Permitted 7th characters

Ainitial encounter
Dsubsequent encounter
Ssequela

More specific codes under W45

Where this code sits

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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