CPT® Code 85230

The CPT® Code 85230 refers to a laboratory test specifically designed to measure the activity of factor VII, also known as proconvertin or stable factor. Factor VII is classified as a vitamin K-dependent protein enzyme that plays a crucial role in the coagulation process. It is categorized within the serine protease class of enzymes and is essential for initiating coagulation in conjunction with Factor III, commonly referred to as tissue factor. A deficiency in Factor VII, although rare, can lead to a bleeding disorder that resembles hemophilia. This deficiency can be inherited genetically or acquired due to various conditions such as vitamin K deficiency, bile duct obstruction, liver disease, or as a result of anticoagulant therapy. Patients with Factor VII deficiency may exhibit symptoms such as easy bruising, frequent nosebleeds, soft tissue or joint hemorrhages, and excessive bleeding during surgical procedures or menstruation. The factor VII activity test is typically ordered when a patient presents with abnormal bleeding times, as indicated by prothrombin time (PT) or activated partial thromboplastin time (PTT) tests, or when there is a family history of coagulation factor deficiencies. Additionally, this test may be utilized to monitor the severity of the factor defect and the effectiveness of any ongoing treatment. To perform this test, a blood sample is collected through a venipuncture, which is a separately reportable procedure. The analysis is conducted on platelet-poor plasma using a prothrombin clot-based assay, ensuring accurate measurement of factor VII activity.