v3.26.1
Cover
Apr. 24, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Apr. 24, 2026
Entity File Number 001-36536
Entity Registrant Name CAREDX, INC.
Entity Central Index Key 0001217234
Entity Tax Identification Number 94-3316839
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 8000 Marina Boulevard
Entity Address, Address Line Two 4th Floor
Entity Address, City or Town Brisbane
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94005
City Area Code 415
Local Phone Number 287-2300
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.001 Par Value
Trading Symbol CDNA
Security Exchange Name NASDAQ
Entity Emerging Growth Company false