Colles' fx unsp radius, subs for opn fx type I/2 w nonunion

This code signifies a Colles' fracture, which is a break in the distal radius, where the broken piece of the radius tilts upward. Specifically, it indicates an open fracture (meaning the skin was broken) of either Type I or II, and the bone has failed to heal properly, resulting in a nonunion. This particular code is used during the healing phase after the initial treatment.

This code is appropriate for follow-up encounters when a patient is being treated for a Colles' fracture of an unspecified radius that was initially an open fracture (Type I or II) and has subsequently developed a nonunion. It would be used for ongoing management, such as monitoring the nonunion, considering further interventions, or during physical therapy sessions related to the unhealed fracture.

• Ensure the documentation clearly specifies an open Colles' fracture (Type I or II) and explicitly states "nonunion."
• Verify that the encounter is for follow-up care, not the initial treatment of the fracture.
• Confirm that the specific radius (left or right) is not documented; if it is, a more specific code should be used.