Obst due to fb acc left in body fol unsp procedure, subs

This code describes a patient presenting for follow-up care related to an obstruction caused by a foreign object that was unintentionally retained within their body after an unspecified surgical or medical procedure. The obstruction is a direct consequence of the retained foreign body.

Use this code when a patient returns for subsequent treatment, monitoring, or management of an obstruction that has developed due to a foreign body accidentally left inside them during a prior, unrecorded procedure. This applies to situations where the initial procedure is not specified in the documentation.

• Requires an external cause code (W44.-) to identify the type of foreign body.
• The 7th character "D" indicates a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.
• Ensure documentation clearly states the obstruction is due to the retained foreign body and that the initial procedure was not specified.