Shoulder Blade (Scapula) X-ray (both sides)

What it is

The scapula is a flat triangular bone that floats on the back of the rib cage, held there by muscle rather than by a joint, and it carries the socket that the arm bone sits in. Being cushioned that way makes it one of the least commonly fractured bones in the body — well under one in a hundred fractures. The flip side is what a scapula fracture implies: it takes blunt, high-energy trauma, typically a car crash or a fall from a height, and it often arrives alongside broken ribs, a broken collarbone, or injury to the lung, head, or spine. A complete study means the bone is filmed from more than one direction, including a view angled along the blade, since a flat bone overlying the ribs hides fracture lines on a single projection. This code covers both shoulder blades.

Why it is done

• To find a fracture of the shoulder blade after major blunt trauma, and to say which part broke — the body of the blade, the neck, the socket, or one of the projecting processes
• To show whether fragments involving the shoulder socket have moved out of place, which is one of the situations that leads to surgery
• To follow up an abnormality of the scapula noticed on a chest x-ray taken for another reason
• To assess long-standing shoulder blade pain, clicking, or an abnormal position of the blade against the chest wall
• To compare the two shoulder blades when the question is about position or shape rather than a break

What to expect

The technologist positions the patient upright or lying down and rotates the body between exposures so the blade is seen face-on and then edge-on; the arm is usually moved as well. Each exposure is brief, and the whole study takes a few minutes per side. It is painless except for the positioning. If a fracture is confirmed, a CT is often added, because the fragment pattern around the shoulder socket is difficult to judge on plain films. In a trauma setting these images are frequently taken as part of a wider set covering the chest, ribs, and shoulder. A radiologist produces the formal report.

Questions worth asking

• Were both shoulder blades genuinely imaged? This code is the bilateral one; a single-side study is a separate code.
• If this was part of a trauma work-up, how many separate imaging codes were billed for that visit, and can I see them itemized?
• Was a chest x-ray or a shoulder x-ray billed on the same day as well? Those are distinct studies even when they were taken minutes apart.
• If a CT of the shoulder follows, does my plan treat it as a duplicate of this study or as a separate medically necessary one?