tci ED Coding & Reimbursement Alert - 2006 Issue 11

Reader Question: Differentiate Between Facial, Dental Nerve Blocks

Question: The ED physician performed a diagnostic nerve block on a patient complaining of pain in the floor of her mouth and her bottom set of teeth. We coded 64402 for the encounter, but the claim was rejected. Why didn't we get paid for this claim?South Carolina Subscriber Answer: You chose the incorrect nerve block code for this scenario. You should use 64402 (Injection, anesthetic agent; facial nerve) for facial nerve blocks, not blocks in the mouth or jaw. Your surgeon treated a branch of the trigeminal nerve, not the facial nerve. On the claim, report 64400 (...

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