Postproc seroma of skin, subcu following other procedure

This code describes the formation of a seroma, which is a collection of serous fluid, occurring in the skin or subcutaneous tissue after a medical or surgical procedure other than a mastectomy. It represents a common postoperative complication where fluid accumulates in a dead space created by the surgery.

Use this code when documentation clearly indicates a seroma developed in the skin or subcutaneous tissue as a direct result of a previous surgical or interventional procedure, excluding mastectomy. This code is appropriate for seromas following procedures like excisions, biopsies, or other soft tissue surgeries. The physician's note should specify the seroma's location and its postprocedural origin.

• Always sequence this code after the code for the underlying condition or the procedure that led to the seroma, if applicable.
• Distinguish from hematoma (blood collection) or abscess (pus collection); this code is specifically for serous fluid.
• Do not use for seromas following mastectomy, as a more specific code exists for that scenario.