Greenstick fx shaft of unsp ulna, subs for fx w delay heal

This code describes a specific type of incomplete fracture, a greenstick fracture, affecting the shaft of the ulna, where the bone is bent and partially broken, similar to a young tree branch. This particular code is used when the patient is seen for follow-up care and the fracture is not healing as expected, indicating delayed union.

Apply this code for a patient presenting for a subsequent encounter related to a greenstick fracture of the ulnar shaft that has not yet fully healed and is exhibiting delayed healing. This would typically be used after the initial treatment phase, during ongoing management of the fracture.

• Ensure documentation clearly specifies "greenstick" fracture and "delayed healing" for the ulnar shaft.
• Confirm the encounter is for follow-up care, not the initial treatment.
• Verify laterality (unspecified in this code) if the documentation provides it, and select a more specific code if available.