Barton's fx left rad, subs for opn fx type 3A/B/C w malunion

This code describes a specific type of distal radius fracture, known as a Barton's fracture, affecting the left arm. It indicates that the fracture was an open fracture (meaning the skin was broken) of a severe type (IIIA, IIIB, or IIIC) and has subsequently healed incorrectly, resulting in a malunion.

This code is used when a patient presents for follow-up care, treatment, or evaluation of a previously sustained open Barton's fracture of the left radius that has healed in an anatomically incorrect position. This includes situations where the malunion is being assessed for surgical correction, physical therapy, or ongoing management of symptoms related to the improper healing.

• Ensure documentation clearly specifies a left-sided Barton's fracture and an open fracture type IIIA, IIIB, or IIIC.
• Verify that the encounter is for a subsequent visit related to the malunion, not the initial treatment of the acute fracture.
• Confirm the physician's assessment explicitly states "malunion" rather than "nonunion" or "delayed union," as these have different codes.