2007 ICD-9-CM Procedure 04.81 Injection of anesthetic into peripheral nerve for analgesia 04.81 is a specific code that can be used to specify a procedure 04.81 contains 7 index entries View the full Volume 3 04.* hierarchy 04.81 excludes: that for operative anesthesia -- omit code Index entries containing 04.81: Block gasserian ganglion 04.81 intercostal nerves 04.81 nerve (cranial) (peripheral) NEC 04.81 peripheral nerve 04.81 trigeminal nerve 04.81 Injection (into) (hypodermically) (intramuscularly) (intravenously) (acting locally or systemically) nerve (cranial) (peripheral) 04.80 agent NEC 04.89 anesthetic for analgesia 04.81 for operative anesthesia -- omit code Nerve block (cranial) (peripheral) NEC -- see also Block, by site 04.81