FDA product codes

The device classification tree, in product code order.

FDA classifies every device type under a three-letter product code, and that code is what ties a clearance to a recall to a registered listing. Each page here carries the FDA definition, the regulation it sits under, clearance volume by year, and the companies that list the code with FDA.

Data as of 2026-10-05, the FDA export date. FDA product classification database

Review panels

6,880 codes

FDA review panels and the number of ingested product codes in each
Review panel	Panel code	Product codes
Anesthesiology	AN	262
Cardiovascular	CV	437
Clinical Chemistry	CH	527
Clinical Toxicology	TX	338
Dental	DE	352
Ear, Nose, Throat	EN	269
Gastroenterology, Urology	GU	614
General Hospital	HO	394
General, Plastic Surgery	SU	562
Hematology	HE	281
Immunology	IM	278
Medical Genetics	MG	7
Microbiology	MI	554
Neurology	NE	291
Obstetrics/Gynecology	OB	269
Ophthalmic	OP	345
Orthopedic	OR	349
Pathology	PA	325
Physical Medicine	PM	210
Radiology	RA	216

214 codes carry no review panel in the FDA classification file and appear only in the index below

7,094 product codes, page 24 of 71

FDA product codes, page 24 of 71
Code	Device name	Class	Regulation	Clearances	Recalls
HYW	Stain, Trichrome, Mallory'S	Class I	21 CFR 864.1850	2	0
HYY	Metanil Yellow	Class I	21 CFR 864.1850	0	0
HYZ	Methenamine Silver	Class I	21 CFR 864.1850	0	0
HZA	Methyl Green	Class I	21 CFR 864.1850	2	0
HZC	Mucicarmine	Class I	21 CFR 864.1850	2	0
HZD	Muller'S Colloidal Iron	Class I	21 CFR 864.1850	0	0
HZE	Nile Blue	Class I	21 CFR 864.1850	0	0
HZF	Nuclear Fast Red	Class I	21 CFR 864.1850	0	0
HZG	Oil Red O	Class I	21 CFR 864.1850	1	0
HZH	Orange G	Class I	21 CFR 864.1850	4	0
HZI	Acid, Osmic	Class I	21 CFR 864.4010	0	0
HZJ	Stain, Papanicolau	Class I	21 CFR 864.1850	15	2
HZL	Phloxine B	Class I	21 CFR 864.1850	1	0
HZM	Hematoxylin, Acid, Phosphotungstic	Class I	21 CFR 864.1850	0	0
HZN	Picro Methyl Blue	Class I	21 CFR 864.1850	0	0
HZO	Stain, Ponceau	Class I	21 CFR 864.1850	1	0
HZP	Pyronin	Class I	21 CFR 864.1850	0	0
HZQ	Red-Violet Lb	Class I	21 CFR 864.1850	0	0
HZR	Resorcin Fuchsin	Class I	21 CFR 864.1850	0	0
HZS	Safranin	Class I	21 CFR 864.1850	1	0
HZT	Reagent, Schiff	Class I	21 CFR 864.1850	5	2
HZX	Silver Nitrate	Class I	21 CFR 864.1850	0	0
HZY	Sirius Red	Class I	21 CFR 864.1850	0	0
HZZ	Sudan Black B	Class I	21 CFR 864.1850	2	0
IAA	Titan Yellow	Class I	21 CFR 864.1850	0	0
IAB	Toluidine Blue	Class I	21 CFR 864.1850	1	0
IAC	Van Gieson'S Stain	Class I	21 CFR 864.1850	1	0
IAD	Van Gieson'S Picro-Fuchsin	Class I	21 CFR 864.1850	0	0
IAE	Hematoxylin, Iron, Weigert'S	Class I	21 CFR 864.1850	1	0
IAF	Wright'S Stain	Class I	21 CFR 864.1850	33	0
IAL	Iodine (Tincture)	Class I	21 CFR 864.4010	0	0
IAM	Solution, Lugol'S	Class I	21 CFR 864.4010	0	1
IAT	Syrup, Gum, Apathy'S	Class I	21 CFR 864.4010	0	0
IAW	Collodion	Class I	21 CFR 864.4010	0	0
IAY	Colchicine	Class I	21 CFR 864.4010	0	0
IAZ	Heparin	Class I	21 CFR 864.4400	0	0
IBA	Streptolysin O	Class I	21 CFR 864.4400	0	0
IBB	Phytohemaglutinin M	Class I	21 CFR 864.4010	0	0
IBC	Diastase	Class I	21 CFR 864.4400	0	0
IBD	Hyaluronidase	Class I	21 CFR 864.4400	0	0
IBE	Neuramininase (Sialidase)	Class I	21 CFR 864.4400	0	0
IBF	Papain	Class I	21 CFR 864.4400	0	0
IBG	Trypsin	Class I	21 CFR 864.4400	2	1
IBJ	Light, Microscope	Class I	21 CFR 864.3600	9	2
IBK	Microscope, Fluorescence/U.V.	Class I	21 CFR 864.3600	1	0
IBL	Microscope, Inverted Stage, Tissue Culture	Class I	21 CFR 864.3600	0	0
IBM	Microscope, Phase Contrast	Class I	21 CFR 864.3600	1	1
ICC	Eosin B	Class I	21 CFR 864.1850	1	0
ICD	Darrow Red	Class I	21 CFR 864.1850	0	0
ICF	Crystal Violet For Histology	Class I	21 CFR 864.1850	5	0
ICG	Cresyl Violet Acetate	Class I	21 CFR 864.1850	0	0
ICH	Congo Red	Class I	21 CFR 864.1850	1	0
ICI	Hematoxylin, Chrome Alum	Class I	21 CFR 864.1850	0	0
ICJ	Carbol Night Blue	Class I	21 CFR 864.1850	1	0
ICL	Carbol Fuchsin	Class I	21 CFR 864.1850	4	0
ICM	Brilliant Yellow	Class I	21 CFR 864.1850	0	0
ICN	Biebrich Scarlet	Class I	21 CFR 864.1850	2	0
ICO	Best'S Carmine	Class I	21 CFR 864.1850	0	0
ICQ	Azure A	Class I	21 CFR 864.1850	0	0
ICR	Azocarmine B	Class I	21 CFR 864.1850	0	0
ICS	Azocarmine G	Class I	21 CFR 864.1850	0	0
ICT	Azan Counterstain	Class I	21 CFR 864.1850	0	0
ICX	Aniline	Class I	21 CFR 864.1850	1	0
ICY	Acid, Aniline, Fuchsin	Class I	21 CFR 864.1850	0	0
ICZ	Ammoniacal Silver Hydroxide Silver Nitrate	Class I	21 CFR 864.1850	0	0
IDA	Alcian Blue	Class I	21 CFR 864.1850	2	0
IDB	Aldehyde Fuchsin	Class I	21 CFR 864.1850	0	0
IDC	Acridine Orange	Class I	21 CFR 864.1850	4	0
IDD	Alizarin Red	Class I	21 CFR 864.1850	0	0
IDE	Acid, Hematein	Class I	21 CFR 864.1850	0	0
IDF	Acid, Fuchsin	Class I	21 CFR 864.1850	1	0
IDL	Microtome, Accessories	Class I	21 CFR 864.3010	5	0
IDM	Microtome, Ultra	Class I	21 CFR 864.3010	1	0
IDN	Microtome, Freezing Attachment	Class I	21 CFR 864.3010	0	0
IDO	Microtome, Rotary	Class I	21 CFR 864.3010	5	1
IDP	Microtome, Cryostat	Class I	21 CFR 864.3010	1	10
IDQ	Infiltrator	Class I	21 CFR 864.3010	0	0
IDR	Ovens, Paraffin	Class I	21 CFR 864.3010	0	0
IDS	Melting Pot, Paraffin	Class I	21 CFR 864.3010	1	0
IDT	Apparatus, Melting Point, Paraffin	Class I	21 CFR 864.3010	0	1
IDW	Dispensers, Paraffin	Class I	21 CFR 864.3010	1	1
IDX	Sieves, Tissue	Class I	21 CFR 864.3010	0	0
IDY	Bath, Flotation, Tissue	Class I	21 CFR 864.3010	0	1
IDZ	Cassettes, Tissue	Class I	21 CFR 864.3010	5	1
IEG	Table, Slide Warming	Class I	21 CFR 864.3010	1	0
IEH	Lamps, Slide Warming	Class I	21 CFR 864.3010	0	0
IEO	Processor, Tissue, Automated	Class I	21 CFR 864.3875	12	11
IER	Polyethylene Glycol (Carbowax)	Class I	21 CFR 864.4010	1	0
IEX	Gelatin	Class I	21 CFR 864.4010	0	0
IEZ	Celloidin	Class I	21 CFR 864.4010	0	0
IFB	Cytocentrifuge	Class I	21 CFR 864.3300	3	2
IFF	Solution, Decalcifier, Electrolytic	Class I	21 CFR 864.4010	0	0
IFH	Solution, Zenker'S	Class I	21 CFR 864.4010	2	0
IFI	Sprays, Synthetic, Smear	Class I	21 CFR 864.4010	1	0
IFJ	Fixative, Richardson Glycol	Class I	21 CFR 864.4010	0	0
IFL	Polyethylene Glycol Preservative	Class I	21 CFR 864.4010	0	0
IFN	Solution, Orth'S	Class I	21 CFR 864.4010	0	0
IFO	Solution, Newcomer'S	Class I	21 CFR 864.4010	0	0
IFP	Formalin, Neutral Buffered	Class I	21 CFR 864.4010	15	2
IFQ	Formulations, Mercuric Chloride For Tissue	Class I	21 CFR 864.4010	2	0