Perf due to fb acc left in body fol inject or immuniz, subs

This code signifies a perforation that has occurred as a direct consequence of a foreign object, such as a needle fragment or other material, being inadvertently retained within the body after an injection or immunization procedure. This perforation is a delayed complication, indicating that the initial injury was not identified or addressed during the primary encounter.

Apply this code when a patient presents for follow-up care related to a perforation caused by a retained foreign body from a previous injection or immunization. This includes situations where the perforation is newly discovered or is being managed in a subsequent visit after its initial diagnosis.

• Always assign an external cause code (V00-Y99) to identify the circumstances of the initial injection or immunization.
• Ensure documentation clearly links the perforation to the retained foreign body and specifies that it's a subsequent encounter.
• Consider additional codes for the specific site of the perforation and any associated complications.