Flail chest, sequela

This code signifies the long-term effects or complications arising from a flail chest injury. It indicates that the patient is experiencing residual problems directly attributable to the paradoxical movement of a segment of the chest wall due to multiple rib fractures. These sequelae can include chronic pain, respiratory compromise, or persistent chest wall deformity.

Apply this code when documenting conditions that are a direct result of a previously sustained flail chest, after the acute phase of the injury has resolved. This is appropriate for patients presenting with chronic respiratory issues, ongoing pain, or functional limitations clearly linked to the prior flail chest. Do not use for the initial injury or during the immediate post-injury recovery period.

• Always sequence this code after the code(s) identifying the specific sequela (e.g., chronic pain, respiratory insufficiency).
• Ensure documentation clearly links the current condition to the past flail chest injury.
• This "S" seventh character indicates sequela and should only be used for residual conditions.