Postproc seroma of a resp sys org fol a resp sys procedure

This code signifies the development of a seroma, a collection of serous fluid, within a respiratory system organ or structure that occurs as a direct complication of a respiratory system surgical or interventional procedure. It indicates a localized fluid accumulation post-intervention, distinct from infection or hematoma.

Apply this code when documentation explicitly states a seroma formed in a respiratory organ (e.g., lung, trachea, pleura) following a procedure such as a lobectomy, tracheostomy, or thoracotomy. The physician's notes should confirm the seroma's location and its direct link to the preceding respiratory intervention.

• Ensure the seroma is specifically located within a respiratory system organ or structure, not a general surgical site seroma.
• Verify the seroma is a postprocedural complication, not a spontaneous occurrence.
• Sequence this code as a secondary diagnosis when the primary reason for the encounter is treatment of the seroma itself, or as a complication code when treating the original condition.