Traumatic pneumothorax, subsequent encounter

This code signifies a collapsed lung due to trauma, specifically when the patient is receiving follow-up care after the initial injury. It indicates that the pneumothorax is not a new occurrence but rather an ongoing condition or complication from a previous traumatic event.

Apply this code for patients presenting for subsequent treatment of a traumatic pneumothorax, such as during hospital readmissions for complications, follow-up clinic visits for monitoring, or during rehabilitation. This includes scenarios where a chest tube is being managed or removed, or when imaging is performed to assess resolution.

• Always sequence this code after the primary traumatic injury code, if applicable, to provide context.
• Ensure documentation clearly states the pneumothorax is a result of a past trauma and that the encounter is for ongoing management.
• Do not use for initial treatment of a newly diagnosed traumatic pneumothorax; use the appropriate "initial encounter" code instead.