Displ commnt fx shaft of ulna, l arm, 7thM

This code signifies a left ulna shaft fracture that is both displaced and comminuted, meaning the bone is broken into multiple fragments and misaligned. The fracture is an open type I or II, indicating a break in the skin communicating with the fracture site, and is currently experiencing nonunion, where the bone has failed to heal after a subsequent encounter for treatment.

This code is used when a patient presents for follow-up care of a previously treated open, displaced, comminuted fracture of the left ulna shaft that has not healed. It specifically applies to situations where the fracture is complicated by nonunion and the initial injury was an open fracture type I or II.

• Ensure documentation clearly specifies "left" ulna and "shaft" involvement.
• Verify the fracture is explicitly documented as "displaced," "comminuted," and "open type I or II."
• Confirm the encounter is "subsequent" and the primary issue is "nonunion" of the fracture.