Barton's fx left radius, subs for opn fx type I/2 w nonunion

This code signifies a specific type of distal radius fracture, known as a Barton's fracture, affecting the left arm. It indicates that the fracture was initially open (meaning the skin was broken) and is now in a stage of nonunion, where the bone fragments have failed to heal together after a previous treatment. This code is used for follow-up care after the initial treatment of the open fracture.

Use this code for patients presenting for ongoing management of a left Barton's fracture that was initially open (Type I or II) and has subsequently failed to unite. This would apply to encounters for cast changes, physical therapy, surgical planning for revision, or other follow-up care related to the nonunion. It should be used after the initial acute treatment phase of the open fracture.

• Ensure documentation clearly specifies "left radius" and "Barton's fracture" with evidence of an initial open injury.
• Verify that the encounter is for a subsequent visit related to the nonunion, not the initial treatment.
• Always code an additional external cause code if the cause of the fracture is known and relevant to the encounter.