T81: Complications of procedures, not elsewhere classified

The category of "Complications of procedures, not elsewhere classified" represents a group of medical conditions that sometimes occur due to surgical or medical procedures. These complications are not attributed to any specific procedure, but instead can happen as a result of various procedures. They arise after the procedure, rather than being a direct result of the disease or condition that led to the procedure. Common complications in this category can include infection, shock, post-procedural bleeding, and various specific procedural complications such as issues with wound healing, scars, and reaction to implanted devices or grafts. The onset of symptoms and the severity depend on the specific complication and individual health factors. These complications can affect multiple systems in the body, from the cardiovascular and respiratory systems to the integumentary system (skin, hair, nails).