CPT® Code 49423

The CPT® Code 49423 refers to the procedure of exchanging a previously placed abscess or cyst drainage catheter under radiological guidance, classified as a separate procedure. This procedure is essential for managing abscesses or cysts that require drainage. It involves the use of a contrast injection through an existing drainage catheter, which allows for the assessment of the abscess or cyst. The contrast media helps visualize the size and location of the abscess pocket or cyst through radiographic imaging. During this process, the distribution of the contrast material is carefully observed to ensure accurate evaluation. The procedure is performed with continuous radiological guidance, which is crucial for the safe and effective exchange of the catheter. A guidewire is introduced into the existing catheter, facilitating the removal of the old catheter and the placement of a new one. This exchange is vital for maintaining proper drainage and managing the condition effectively.