Clinical Background. Prothrombin, or factor II, is the precursor of thrombin; as such, it plays a key role in the balance between procoagulation and anticoagulation. A prothrombin genetic variant known as 20210G A is associated with elevated levels of prothrombin and with thrombophilia.
HCPCS are codes generated by the federal government to describe procedures that have special significance to either the Medicaid or Medicare programs. There is some overlap between CPT codes and HCPCS. This is because level 1 HCPCS codes are, in fact, CPT codes. Level 2 HCPCS codes are unique codes that, for us, begin with a 'V' or a 'W'. There also exists a level 3 series of codes that I will address below.
CPT is currently identified by the Centers for Medicare and Medicaid Services (CMS) as Level 1 of the Health Care Procedure Coding System (HCPCS). The HCPCS code set also includes additional codes that begin with a letter.hose additional codes are used in conjunction with the CPT code set to identify other supplies (including DME-durable medical equipment) and procedures not currently listed in the CPT code set. CPT is a registered trademark of the American Medical Association.