Displaced oblique fracture of shaft of unsp ulna, sequela

This code describes a long-term complication or late effect stemming from a previously sustained oblique fracture of the shaft of the ulna, where the bone fragments are no longer in their anatomical alignment. The specific side (left or right) of the ulna is not documented. This indicates that the initial injury has healed, but residual issues related to the displacement of the fracture persist.

Apply this code when documenting a patient presenting with ongoing problems directly attributable to an old, displaced oblique ulnar shaft fracture. This includes conditions like malunion, nonunion, chronic pain, limited range of motion, or nerve impingement that are a direct consequence of the original fracture's displacement. It is used after the acute phase of healing has passed.

• Ensure documentation clearly links the current condition to a prior displaced oblique ulnar shaft fracture.
• This "S" seventh character indicates a sequela, meaning the patient is being treated for a complication or residual effect of the original injury, not the acute fracture itself.
• Do not use this code for initial or subsequent encounters for the acute fracture; those require different seventh characters.