Disp fx of prox phalanx of unsp fngr, subs for fx w nonunion

This code signifies a displaced break in the bone of the proximal phalanx (the first bone of the finger, closest to the palm) in an unspecified finger. The "nonunion" aspect indicates that the fracture has failed to heal properly after an initial attempt at treatment.

This code is appropriate for follow-up encounters where a patient is being treated for a previously diagnosed and treated displaced proximal phalanx fracture that has not united. This includes situations where further intervention, such as surgery or prolonged immobilization, is being considered or performed due to the lack of healing.

• Ensure documentation clearly states "nonunion" and "displaced" for the proximal phalanx fracture.
• Verify the specific finger is not documented; if known, a more specific code should be used.
• This "K" seventh character indicates a subsequent encounter for a fracture with nonunion.