| GSM — Antisera, Fluorescent, Brucella Spp. | Class 2 / MI |
| GSN — Antiserum, Positive And Negative Febrile Antigen Control Serum | Class 2 / MI |
| GSO — Antigens (Febrile), Agglutination, Brucella Spp. | Class 2 / MI |
| GSP — Antiserum, Fluorescent, Campylobacter Fetus | Class 1 / MI |
| GSQ — Antiserum, Vibrio Cholerae, All Varieties | Class 2 / MI |
| GSR — Antisera, Fluorescent, Pseudomonas Pseudomallei | Class 2 / MI |
| GSS — Antisera, Fluorescent, Pseudomonas Aeruginosa | Class 2 / MI |
| GST — Antiserum, Pseudomonas Pseudomallei | Class 2 / MI |
| GSW — Antiserum, Flavobacterium Meningosepticum, All Groups | Class 1 / MI |
| GSX — Antisera, Acinetobacter Calcoaceticus, All Varieties | Class 1 / MI |
| GSY — Antisera, Fluorescent, All Globulins, Proteus Spp. | Class 1 / MI |
| GSZ — Antigens, Febrile (Weil-Felix), All Groups | Class 1 / MI |
| GTA — Antisera, All, Serratia Marcesans | Class 1 / MI |
| GTB — Antisera, Fluorescent, All Types, Klebsiella Spp. | Class 1 / MI |
| GTC — Antisera, All Types, Klebsiella Spp. | Class 1 / MI |
| GTD — Antisera, Fluorescent, All Globulins, Shigella Spp. | Class 2 / MI |
| GTE — Antisera, Arizona Spp., All | Class 1 / MI |
| GTF — Antisera, Bethesda - Ballerup Polyvalent, Citrobacter Spp. | Class 1 / MI |
| GTH — Antiserum, Fluorescent (Direct Test), All Groups, N. Gonorrhoeae | Class 2 / MI |
| GTI — Antisera, Fluorescent, All Groups, N. Meningitidis | Class 2 / MI |
| GTJ — Antisera, All Groups, N. Meningitidis | Class 2 / MI |
| GTL — Phages, Staphylococcal Typing, All Types | Class 1 / MI |
| GTN — Antisera, Fluorescent, All Types, Staphylococcus Spp. | Class 1 / MI |
| GTO — Anti-Streptokinase | Class 1 / MI |
| GTP — Exoenzymes, Multiple, Streptococcal | Class 1 / MI |
| GTQ — Antistreptolysin - Titer/Streptolysin O Reagent | Class 1 / MI |
| GTR — Antideoxyribonuclease, Streptococcus Spp. | Class 1 / MI |
| GTX — Antisera, Fluorescent, All Groups, Streptococcus Spp. | Class 1 / MI |
| GTY — Antigens, All Groups, Streptococcus Spp. | Class 1 / MI |
| GTZ — Antisera, All Groups, Streptococcus Spp. | Class 1 / MI |
| GWB — Antisera, Fluorescent, All Types, Streptococcus Pneumoniae | Class 1 / MI |
| GWC — Antisera, All Types, Streptococcus Pneumoniae | Class 1 / MI |
| GWD — Indirect Fluorescent Antibody Test, Entamoeba Histolytica & Rel Sp | Class 2 / MI |
| GWE — Stimulator, Photic, Evoked Response | Class 2 / NE |
| GWF — Stimulator, Electrical, Evoked Response | Class 2 / NE |
| GWG — Endoscope, Neurological | Class 2 / NE |
| GWI — Discriminator, Two-Point | Class 1 / NE |
| GWJ — Stimulator, Auditory, Evoked Response | Class 2 / NE |
| GWK — Conditioner, Signal, Physiological | Class 2 / NE |
| GWL — Amplifier, Physiological Signal | Class 2 / NE |
| GWM — Device, Monitoring, Intracranial Pressure | Class 2 / NE |
| GWN — Nystagmograph | Class 2 / NE |
| GWO — Plate, Cranioplasty, Preformed, Alterable | Class 2 / NE |
| GWQ — Full-Montage Standard Electroencephalograph | Class 2 / NE |
| GWR — Generator, Electroencephalograph Test Signal | Class 1 / NE |
| GWS — Analyzer, Spectrum, Electroencephalogram Signal | Class 1 / NE |
| GWW — Ataxiagraph | Class 1 / NE |
| GWX — Fork, Tuning | Class 1 / NE |
| GWY — Pinwheel | Class 1 / NE |
| GWZ — Percussor | Class 1 / NE |