Unspecified injury of right ankle, sequela

This code indicates a long-term or residual effect stemming from a past, unspecified injury to the right ankle. The original injury is no longer acute, but its lasting consequences are still being addressed or monitored. This could include chronic pain, stiffness, instability, or other persistent issues.

Apply this code when documenting follow-up care for a patient experiencing ongoing problems related to a prior right ankle injury, where the specific nature of the original injury (e.g., sprain, fracture) is either unknown or not relevant to the current encounter. It is appropriate for encounters addressing the sequelae of an injury that occurred in the past and has since healed, but left residual effects.

• Always use this code as a secondary diagnosis, following a code that describes the specific nature of the sequela (e.g., chronic pain, instability).
• Ensure the "S" seventh character is appended for sequela, indicating the long-term nature of the condition.
• Avoid using this code for acute injuries; it is exclusively for residual conditions after the initial injury has resolved.