Trigger Point Dry Needling

Is anyone familiar with Trigger point dry needling? A physical therapist I know has been trained in these techniques, and it is approved in many states to be preformed by a PT. My question is how to code it, and get reimbursed. Some insurance companies will accept the 20552 and 20553, but others say it is a surgery code, and will not pay for a PT doing it. The technique inserts a dry needle, similar to an accupuncture needle into the muscle to release the spasm. There is no medication used. He is working in a pain management clinic, and the billing company they use is giving them grief about billing it. Can anyone give me information on this?

Medicare

Medicare does not pay for dry needling