Illinois Subscriber
Answer: Based on the codes you list, it sounds as if youre administering a nerve block for pain management (postoperatively). If thats the case, 64450* (injection, anesthetic agent; other peripheral nerve or branch) is not related to the base or code for anesthesia. Report it as 64450*-59 (appending modifier -59 for distinct procedural service) and include an applicable ICD-9 code for pain, such as 729.5 (pain in limb) or 813.XX (codes related to fracture of radius and ulna).