Oth fx upper end of left ulna, subs for clos fx w routn heal

This code signifies a follow-up visit for a patient with a non-specific fracture of the upper portion of their left ulna, where the skin remains intact over the fracture site. At this stage, the fracture is healing as expected without complications.

Apply this code for subsequent encounters when a patient is receiving routine follow-up care for a closed fracture of the proximal left ulna. This includes appointments for cast changes, wound checks, or physical therapy evaluations during the normal healing period.

• Ensure the encounter is for a subsequent visit, not the initial treatment.
• Verify that the fracture is documented as "closed" and healing "routinely."
• Differentiate from nonunion or malunion, which would require different seventh characters.