CPT® Code 64405

The CPT® Code 64405 refers to the injection of anesthetic agents and/or steroids into the greater occipital nerve, which is a procedure commonly utilized for both diagnostic and therapeutic purposes. This type of injection, often termed a nerve block, is performed to alleviate pain associated with conditions such as occipital neuralgia. The greater occipital nerve, which originates between the second and third cervical vertebrae, innervates the scalp and areas above the ears, making it a critical target for pain management in the upper cervical region. The procedure involves the careful introduction of a needle to deliver the anesthetic agent, which may include substances like glycol, directly to the nerve. This targeted approach aims to provide significant pain relief, and the effectiveness of the injection is typically assessed by the patient immediately following the procedure. It is important to note that this code is reported once for each nerve or division injected, regardless of the number of injections performed, emphasizing the need for precise documentation and coding practices in medical billing and coding.