Oth fx upr end l ulna, subs for opn fx type I/2 w delay heal

This code signifies an open fracture of the upper portion of the left ulna, specifically an "other" type of fracture beyond the olecranon or coronoid process. The patient is in a subsequent phase of care, and the fracture is experiencing delayed healing, indicating a slower-than-expected recovery process for an open fracture classified as Type I or II.

This code is appropriate for follow-up encounters where a patient with a previously diagnosed open fracture (Type I or II) of the proximal left ulna is being treated for delayed union or nonunion. It should be used when the specific fracture pattern is not an olecranon or coronoid process fracture.

• Ensure documentation clearly specifies "delayed healing" for an open fracture Type I or II.
• Verify the fracture location is the upper end of the ulna, but not specifically the olecranon or coronoid process.
• Confirm this is a subsequent encounter, not the initial treatment for the fracture.