CareDx is a precision medicine company that provides genomics-based testing, laboratory products, and digital health solutions focused on improving outcomes for transplant patients. The company operates a clinical laboratory performing gene expression and donor-derived cell-free DNA tests to detect organ rejection in heart, kidney, lung, and hematopoietic stem cell transplant recipients, manufactures and distributes HLA typing kits and next-generation sequencing solutions globally, and offers digital platform solutions including patient management systems, pharmacy services, and registry reporting tools to transplant centers across the United States and Europe. The company generates revenue through clinical laboratory testing (primarily reimbursed by Medicare and private payers), sales of laboratory products to hospitals and reference laboratories, and software licensing and service fees from transplant centers.