Disloc of unsp acromioclav jt, 100%-200% displacmnt, init

This code describes a complete separation of the acromioclavicular (AC) joint where the clavicle is displaced upward relative to the acromion by 100% to 200% of its normal width. This injury typically results from a direct blow to the shoulder or a fall onto the outstretched arm, causing significant ligamentous disruption. Patients present with severe pain, swelling, and a visible deformity at the top of the shoulder.

Use this code for an initial encounter with a patient diagnosed with a high-grade AC joint dislocation (Type III or IV Rockwood classification) where the displacement is specifically documented as 100% to 200%. This applies to new injuries requiring evaluation and treatment. This code is appropriate when the laterality of the injury is not specified in the medical record.

• Ensure the documentation clearly specifies the degree of displacement (100%-200%) and the initial encounter for the injury.
• Verify the absence of laterality (left or right) in the physician's notes to use the "unspecified" joint code.
• Distinguish this from other AC joint sprains or subluxations, which have different displacement percentages and corresponding codes.