How do you get Medicare pay for 20552?

I have a 715.16 icd 9 linked to this trigger point and it was denied as not Medically necessary. I already appended Modifier 59 upon submission but was denied. What can I do to appeal this claim?

re: How do you get Medicare pay for 20552?

Look at page 22
http://associationdatabase.com/aws/oaasc/asset_manager/get_file/43930