Subluxation of MCP joint of left index finger, init

This code signifies a partial dislocation of the joint connecting the metacarpal bone to the proximal phalanx of the left index finger. It indicates that the joint surfaces are no longer perfectly aligned but still maintain some contact, without a complete separation.

Apply this code when documentation clearly specifies a subluxation of the left index finger's MCP joint. This is appropriate for initial evaluations following an injury or for the first encounter for this specific condition.

• Ensure the documentation specifies "subluxation" and not a full "dislocation."
• Verify the laterality (left) and the specific digit (index finger) are clearly documented.
• Confirm this is the "initial encounter" for the treatment of this specific injury.