64446 Injection, anesthetic agent; sciatic nerve, continuous infusion by catheter (including catheter placement)
64448 Injection, anesthetic agent; femoral nerve, continuous infusion by catheter (including catheter placement)
64449 Injection, anesthetic agent; lumbar plexus, posterior approach, continuous infusion by catheter (including catheter placement)
64450 Injection, anesthetic agent; other peripheral nerve or branch
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Similar to the fact they do not have an injection code for lumbar plexus, but only a continuous infusion.
They do not have a continuous infusion code for other peripheral nerve or branch, they only offer an injection as seen with 64450.
Without a selection for other peripheral nerve or branch, continuous infusion by catheter, this would require you to report an unlisted code.
