Retained foreign body fragments (Z18)

Browse all the diagnosis codes used for retained foreign body fragments (z18). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Instructional Notations


This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • embedded fragment (status)
  • embedded splinter (status)
  • retained foreign body status

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • artificial joint prosthesis status Z96.6
  • foreign body accidentally left during a procedure T81.5
  • foreign body entering through orifice T15 T19
  • in situ cardiac device Z95
  • organ or tissue replaced by means other than transplant Z96 Z97
  • organ or tissue replaced by transplant Z94
  • personal history of retained foreign body fully removed Z87.821
  • superficial foreign body (non-embedded splinter) - code to superficial foreign body, by site