CPT® Code 24100

The CPT® Code 24100 refers to the procedure known as an arthrotomy of the elbow with a synovial biopsy only. This surgical intervention involves the opening of the elbow joint capsule to access the synovial tissue, which is the lining of the joint that produces synovial fluid. The primary purpose of this procedure is to obtain samples of the synovial tissue for laboratory analysis, which can help in diagnosing various joint conditions. During the arthrotomy, the physician may utilize different approaches, such as posterior, medial, or anterolateral, to effectively access the joint. The procedure is specifically focused on the biopsy aspect, distinguishing it from other related codes that involve additional interventions, such as joint exploration or synovectomy. In this context, synovial fluid is aspirated, and tissue samples are collected to be sent for separate laboratory evaluation, which is crucial for understanding the underlying pathology affecting the elbow joint.