Oth fx shaft of right ulna, subs for clos fx w delay heal

This code indicates a fracture in the mid-section of the right ulna bone that is not specified as a Monteggia or Galeazzi fracture. The patient is in a subsequent phase of care, meaning the initial treatment has occurred, and the fracture is experiencing delayed healing despite being a closed injury (skin intact).

Use this code for follow-up encounters where a patient with a previously treated, non-specific fracture of the right ulnar shaft is presenting with evidence of delayed union. This applies when the fracture has not healed within the expected timeframe for a closed injury.

• Ensure documentation specifies "right ulna" and "shaft" to differentiate from other forearm fractures.
• Verify the encounter is for subsequent care and that the fracture is closed with delayed healing.
• Pair with an external cause code (e.g., V00-Y99) if the cause of the injury is known and relevant to the encounter.