Contusion of left index finger with damage to nail, sequela

This code signifies a persistent injury to the left index finger resulting from a prior contusion, specifically involving damage to the nail. It indicates that the initial blunt force trauma has led to ongoing issues or complications affecting the nail structure of the left index finger.

Apply this code when documenting a patient presenting with a current sequela (e.g., nail deformity, chronic pain, non-healing nail bed damage) directly attributable to an old contusion of the left index finger. This is appropriate when the acute injury has passed, but its lasting effects on the nail are still being addressed.

• Requires a seventh character "S" to indicate sequela, meaning the patient is receiving care for the residual effects of an earlier injury.
• Ensure documentation clearly links the current nail damage to a previous contusion of the left index finger.
• Do not use for acute contusions; reserve for chronic or residual conditions.