Posterior dislocation of unsp radial head, init encntr

This diagnosis code indicates a posterior displacement of the radial head from its normal articulation with the capitellum, where the specific radial head (left or right) is not documented. This injury typically results from trauma and can be associated with other elbow injuries.

Apply this code when documentation clearly states a posterior dislocation of the radial head but does not specify laterality (e.g., "posterior radial head dislocation"). This is appropriate for the initial treatment of such an injury.

• Ensure the documentation explicitly states "posterior" dislocation; do not assume.
• Only use this code when laterality is truly unspecified in the medical record.
• The "A" suffix indicates an initial encounter for active treatment of the injury.