Fx unsp phalanx of l little finger, subs for fx w malunion

This code indicates a fracture of an unknown phalanx (proximal, middle, or distal) in the left little finger that has previously been treated but is now healing incorrectly. Malunion signifies that the bone fragments have united in a deformed or misaligned position, which may lead to functional impairment.

Apply this code when documenting follow-up care for a patient whose left little finger phalanx fracture has healed with a noticeable deformity or angulation. This would be used during subsequent visits where the malunion is being assessed, monitored, or treated, such as for physical therapy, further imaging, or surgical planning to correct the malunion.

• Ensure documentation clearly states "malunion" and specifies the left little finger.
• This "P" seventh character is for subsequent encounters with malunion; do not use for initial treatment or routine healing.
• If the specific phalanx (proximal, middle, distal) is known, a more specific code should be selected.