CPT® Code 62325

Injection(s), including indwelling catheter placement, continuous infusion or intermittent bolus, of diagnostic or therapeutic substance(s) (eg, anesthetic, antispasmodic, opioid, steroid, other solution), not including neurolytic substances, interlaminar epidural or subarachnoid, cervical or thoracic; with imaging guidance (ie, fluoroscopy or CT)

The procedure described by CPT® Code 62325 involves the injection of diagnostic or therapeutic substances into the epidural or subarachnoid space of the spinal region, utilizing imaging guidance such as fluoroscopy or computed tomography (CT). This procedure is performed after the skin over the targeted spinal area is thoroughly cleansed with an antiseptic solution, and a local anesthetic is administered to minimize discomfort. A spinal needle is then carefully inserted into the epidural or subarachnoid space, typically using a paramedian or midline interlaminar approach, which is often guided by fluoroscopic imaging to ensure accurate placement. The epidural space is defined as the outermost area of the spinal canal, which contains cerebrospinal fluid and is situated between the dura mater, the protective membrane surrounding the nerve roots, and the vertebral wall. In contrast, the subarachnoid space is located closer to the spinal cord, nestled between the arachnoid membrane and the pia mater, the innermost layer enveloping the spinal cord. Prior to the injection of the therapeutic substance, contrast dye may be utilized to confirm the correct positioning of the needle or to conduct an epidurography. Once the needle is properly positioned, a catheter is threaded through it and advanced into the designated space to ensure secure placement. Subsequently, a variety of substances, including anesthetics, antispasmodics, opioids, steroids, or other solutions (excluding neurolytic substances), are either continuously infused or administered as intermittent boluses into the epidural or subarachnoid space. After the infusion, the patient is closely monitored for any potential adverse effects, ensuring safety and efficacy of the procedure.