1 EXHIBIT 23 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statements Nos. 2-81631, 33-17575, 33-43043 and 333-34665 on Form S-8 of our report dated February 16, 2001, included in this Annual Report on Form 10-K of Diagnostic Products Corporation for the year ended December 31, 2000. /s/ DELOITTE & TOUCHE LLP Los Angeles, California March 28, 2001 35