8. CPT codes 64400-64530 describe injection of anesthetic agent for diagnostic or therapeutic purposes, the codes being distinguished from one another by the named nerve and whether a single or continuous infusion by catheter is utilized. All injections into the nerve including branches described (named) by the code descriptor at a single patient encounter constitute a single unit of service(UOS). For example:
(1) If a physician injects an anesthetic agent into multiple areas around the sciatic nerve at a single patient encounter, only one UOS of CPT code 64445 (injection, anesthetic agent; sciatic nerve, single) may be reported.
(2) If a physician injects the superior medial and lateral branches and inferior medial branches of the left genicular nerve, only one UOS of CPT code 64450 (Injection, anesthetic agent; other peripheral nerve or branch) may be reported regardless of the number of injections needed to block this nerve and its branches.
Addiction to cortisone was the subject of the 1956 motion picture, Bigger Than Life , produced by and starring James Mason . Though it was a box-office flop upon its initial release,  many modern critics hail it as a masterpiece and brilliant indictment of contemporary attitudes towards mental illness and addiction.  In 1963, Jean-Luc Godard named it one of the ten best American sound films ever made.  John F. Kennedy needed to regularly use corticosteroids such as cortisone as a treatment for Addison's disease . 
Hi I fell on my tailbone almost thirty years ago, when I fell, it was on cement that was near water, the pain was so bad, that I thought I would not be able to get up. I went to the doctors months later, as I had a puffiness on my tailbone, he told me it was fluid, and not to worry about it, if it caused problems come back, the thing is it has affected me years later: I can't sit for too long, have nerve damage, which has affected my lower body organs, sciatica and also my mouth, I have serve arthritis in my spine, especially in my neck, and shoulders. I have had physio, that made me worse, I don't know if I can have surgery to rectify the problem.