Procedures without a specific CPT® Code

I am compiling a list of procedures that do not have an assigned CPT® code. Primarily looking at pain and anesthesiology but, would also like others. Some examples are Coccyx block, Bier's block, Ganglion Impar block etc.
Looking for the name of the procedure, a brief description of it or, web site describing the procedure.
Any help you can provide will be appreciated.
Please send replies to my e-mail, awa@mej.roacoxmail.com.
Thanks for your help.
Arthur Askey