CPT® Code 27370

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The procedure described by CPT® Code 27370 involves the injection of a contrast agent specifically for the purpose of knee arthrography. Knee arthrography is a diagnostic imaging technique that utilizes a radiopaque substance to enhance the visibility of the structures within the knee joint during imaging studies. The process begins with the preparation of the injection site, where the skin is thoroughly cleansed to minimize the risk of infection. Following this, a local anesthetic is administered to ensure patient comfort during the procedure. A needle is then carefully inserted into the knee joint, allowing for the aspiration of any existing fluid, which may be necessary for diagnostic purposes. After the joint is prepared, the radiopaque contrast material is injected into the knee joint space. This contrast agent is crucial as it outlines the joint structures, making them more visible on subsequent imaging. To ensure even distribution of the contrast within the joint, the patient is often instructed to exercise the knee. Finally, after the contrast has been adequately distributed, radiographic images are obtained to assess the joint's condition. This procedure is essential for diagnosing various knee pathologies, including tears, inflammation, and other joint abnormalities.