Question: Indiana Subscriber Answer: • 62310 -- Injection, single (not via indwelling catheter), not including neurolytic substances, with or without contrast (for either localization or epidurography), of diagnostic or therapeutic substance(s) (including anesthetic, antispasmodic, opioid, steroid, other solution), epidural or subarachnoid; cervical or thoracic • 62311 -- ... lumbar, sacral (caudal) • 62318 -- Injection, including catheter placement, continuous infusion or intermittent bolus, not including neurolytic substances, with or without contrast (for either localization or epidurography), of diagnostic or therapeutic substance(s) (including anesthetic, antispasmodic, opioid, steroid, other solution), epidural or subarachnoid; cervical or thoracic • 62319 -- ... lumbar, sacral (caudal). Bonus: You can report fluoroscopic guidance for an epidural steroid injection (ESI) with 77003 (Fluoroscopic guidance and localization of needle or catheter tip for spine or paraspinous diagnostic therapeutic injection procedures [epidural, transforaminal epidural, subarachnoid, paravertebral facet joint, paravertebral facet joint nerve, or sacroiliac joint], including neurolytic agent destruction).