Disp fx of prox phalanx of l idx fngr, 7thK

This code signifies a fracture of the first bone of the left index finger, closest to the hand, that is no longer in its proper anatomical alignment. Crucially, this code is used when the fracture has failed to heal properly in a previous treatment attempt, and the patient is presenting for ongoing care related to this nonunion.

Apply this code for follow-up encounters where a patient is being treated for a previously diagnosed and managed displaced fracture of the proximal phalanx of the left index finger, and the fracture has not united. This includes situations where further surgical intervention, casting, or other treatments are being pursued specifically due to the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the left index finger's proximal phalanx.
• Verify the fracture was initially displaced; if not, a different code for an undisplaced fracture with nonunion would be appropriate.
• This "K" seventh character indicates a subsequent encounter for a nonunion, not an initial treatment or routine follow-up for a healing fracture.