Question: What is the appropriate code to bill for an L2-3 intralaminar epidural steroid injection? Idaho Subscriber Answer: This type of injection is also known as a translaminar epidural injection, and you should bill it using 62311 (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; lumbar, sacral [caudal]). According to CPT Assistant, the type of substance injected (e.g., narcotic, anesthetic, steroid, antispasmodic) does not dictate the code choice. And 62311 differentiates itself from other injections by focusing "on the route of administration (i.e., single injection [not via indwelling catheter] versus continuous infusion or intermittent bolus via catheter)," CPT Assistant states.