CDPClass II

Radioimmunoassay, Total Triiodothyronine

21 CFR 862.1710 / Clinical Chemistry

CDP is the FDA product code for Radioimmunoassay, Total Triiodothyronine, a class II device type, regulated under 21 CFR 862.1710. As of 2026-09-10, FDA records hold 144 510(k) clearances under this code, the most recent dated 2000-10-05, and 20 recalls.

Classification record

Product code: CDP
Device name: Radioimmunoassay, Total Triiodothyronine
Regulation: 21 CFR 862.1710
Device class: Class II
Review panel: Clinical Chemistry
Submission type: 510(k) exempt
Implant: No
Life sustaining or supporting: No
GMP exempt: No
Third party review eligible: No
Ingested clearances: 144
Ingested recalls: 20

Clearances, product code CDP

By decision year

144 clearances under product code CDP with a decision year between 1976 and 2000, 1996 the highest year at 14.

Show the numbers

510(k) clearances under FDA product code CDP by decision year
Year	Clearances
1976	3
1977	13
1978	7
1979	8
1980	8
1981	9
1982	3
1983	7
1984	8
1985	3
1986	1
1987	6
1988	6
1989	6
1990	6
1991	5
1992	7
1993	4
1994	5
1995	1
1996	14
1997	5
1998	5
1999	3
2000	1

Applicants with the most clearances

Product code CDP

Applicants holding the most 510(k) clearances under product code CDP
Applicant	Clearances
Abbott Medical	13
Amersham Corp.	7
Siemens Healthcare Diagnostics Inc.	6
Boehringer Mannheim Corp.	4
BD Becton Dickinson Vacutainer Systems Preanalytic	3
Bio-Rad Laboratories Inc.	3
E. R. Squibb & Sons, Inc.	3
G.D. Searle and Co.	3
IMMUNOTECH s.r.o.	3
Monobind, Inc.	3

Companies listing this code with FDA

Companies whose registered establishments list this code

12 of 42 companies shown, in name order