For more information about simple and complex expressions, where you can use expressions, and the types of references that you can include in an expression, see topics under Expressions (Report Builder and SSRS) .
PA is Physician's Assistant, C means he is certified, and the MS means he holds a master's degree. I would think this person is well qualified to give most medical advice. He would work directly under a physician and report to him. JuliusHere Â· 9 years ago.
Medicareâs Coding System for Medical Billing. APC stands for Medicareâs Ambulatory Payment Classification, the coding system that hospitals use to bill the federal government for services provide to Medicare and Medicaid patients. Every procedure or medication given to Medicare and Medicaid patients has its own unique code that must be submitted to Medicare by the hospital in order to receive reimbursement for services.