Displaced spiral fx shaft of ulna, unsp arm, sequela

This code signifies a long-term complication or late effect resulting from a previous displaced spiral fracture of the shaft of the ulna, where the specific arm (left or right) is not documented. A spiral fracture indicates a break caused by a twisting force, and "displaced" means the bone fragments are out of alignment. "Sequela" implies that the current condition is a residual effect of that past injury.

This code is appropriate when documenting a patient presenting with a chronic condition, deformity, nonunion, malunion, or other lasting issue directly attributable to a previously sustained displaced spiral ulna shaft fracture, and the laterality of the original injury is unknown or unspecified in the medical record. It should be used after the acute phase of the injury has passed.

• Always sequence the sequela code first, followed by any codes for the specific manifestation of the sequela (e.g., malunion, nonunion).
• Ensure documentation clearly links the current condition to the past displaced spiral ulna fracture.
• Avoid using this code for initial encounters or active treatment of the acute fracture; those require acute fracture codes.