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Organization and Description of Business	3 Months Ended
Organization and Description of Business	Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	ORGANIZATION AND DESCRIPTION OF BUSINESS CareDx, Inc. (“CareDx” or the “Company”), together with its subsidiaries, is a precision medicine company dedicated to improving outcomes for transplant patients and advancing organ health. The Company delivers solutions designed to empower clinicians and improve patient outcomes. The Company's integrated solutions include non-invasive molecular testing for heart, kidney, and lung transplants; laboratory products; digital health technologies; and patient solutions that support care before and after transplant. CareDx is the leading provider of genomics-based information for transplant patients. The Company’s headquarters are in Brisbane, California and it has other primary operations in Omaha, Nebraska and Stockholm, Sweden. The Company’s commercially available post-transplant testing services consist of AlloSure® Kidney, a donor-derived cell-free DNA (“dd-cfDNA”) solution for kidney transplant patients, AlloMap® Heart, a gene expression profiling solution for heart transplant patients, AlloSure® Heart, a dd-cfDNA solution for heart transplant patients, HeartCare, the combined use of AlloMap Heart and AlloSure Heart, and AlloSure® Lung, a dd-cfDNA solution for lung transplant patients. The Company has initiated several clinical studies to generate data on its existing and planned future testing services. The Company has signed multiple biopharma research partnerships for AlloCell, a surveillance solution that monitors the level of engraftment and persistence of allogeneic cells for patients who have received cell therapy. The Company also offers high-quality products in the pre-transplant space that increase the chance of successful transplants by facilitating a better match between a donor and a recipient of stem cells and organs. The Company also provides digital technologies solutions and various offerings that help transplant centers with patient management, outcomes quality and operational support.