Contusion of lung, unspecified, sequela

This code signifies a long-term or late effect resulting from a past lung contusion. It indicates that the patient is experiencing residual issues or complications directly attributable to a previous blunt force trauma to the lung, where the specific side of the lung affected was not documented.

Use this code when documenting chronic respiratory problems, persistent pain, or other ongoing sequelae that are clearly linked to a prior, resolved lung contusion. This is appropriate for follow-up encounters long after the initial injury has healed, but its effects continue to manifest.

• Always sequence the sequela code first, followed by any additional codes for the specific manifestation(s) of the sequela.
• Ensure documentation clearly links the current condition to a past lung contusion.
• Avoid using this code for acute or subacute contusions; those require acute injury codes.