Bennett's fracture, left hand, subs for fx w nonunion

This code describes a fracture at the base of the first metacarpal bone on the left hand, specifically a Bennett's fracture, which is an intra-articular fracture-dislocation. The "subsequent encounter" indicates the patient is receiving routine care during the healing phase, and "nonunion" signifies that the fracture has failed to heal completely after an expected period.

Use this code for a patient presenting for follow-up care of a previously diagnosed left-sided Bennett's fracture that has not united. This applies to situations where the physician is managing the nonunion, such as discussing further treatment options, monitoring healing progress, or preparing for surgical intervention for the nonunion.

• Always confirm laterality (left hand) and the specific fracture type (Bennett's).
• Ensure documentation clearly states "nonunion" and that the encounter is for ongoing management of this condition.
• Do not use for initial treatment of the fracture or for malunion, which is a separate condition.