Aseptic peritonitis due to forn sub acc left dur proc, subs

This code signifies inflammation of the peritoneum (the lining of the abdominal cavity) that is not caused by bacterial infection, but rather by a foreign material inadvertently retained within the body during a previous surgical or invasive procedure. The "aseptic" nature indicates the absence of microbial pathogens as the primary cause of the peritonitis.

Apply this code when a patient presents for follow-up care or treatment of peritonitis that has been definitively linked to a non-infectious reaction to a foreign object (e.g., surgical sponge, instrument fragment) left behind from an earlier procedure. This code is specifically for encounters after the initial treatment of the peritonitis.

• Ensure documentation clearly states the peritonitis is aseptic and directly attributable to a retained foreign body from a prior procedure.
• Verify the encounter is for subsequent care, not the initial treatment of the peritonitis or the initial procedure where the foreign body was left.
• Always code the specific type of foreign body if known and documented, in addition to this code.