| Calibrator For Cell Indices | Federal registry | 1 |
| Calibrator For Hemoglobin And Hematocrit Measurement | Federal registry | 1 |
| Calibrator For Platelet Counting | Federal registry | 1 |
| Calibrator For Red-Cell And White-Cell Counting | Federal registry | 1 |
| Calibrator, Primary | Federal registry | 1 |
| Calprotectin, Fecal | Federal registry | 1 |
| Campylobacter Spp. | Federal registry | 1 |
| Cannabis | Company website | 1 |
| Cannula, Nasal, Oxygen | Federal registry | 1 |
| Case, Contact Lens | Federal registry | 1 |
| Catheter, Percutaneous | Federal registry | 1 |
| Clamp, Vascular | Federal registry | 1 |
| cleaners | Company website | 1 |
| Clip, Implantable | Federal registry | 1 |
| Colorimeter, Photometer, Spectrophotometer For Clinical Use | Federal registry | 1 |
| Complement C9, Antigen, Antiserum, Control | Federal registry | 1 |
| Consumer | Company website | 1 |
| Container, Sharps | Federal registry | 1 |
| Container, Specimen, Sterile | Federal registry | 1 |
| Control, Cell Counter, Normal And Abnormal | Federal registry | 1 |
| Control, Hemoglobin | Federal registry | 1 |
| Counter, Cell, Automated (Particle Counter) | Federal registry | 1 |
| Counter, Differential Cell | Federal registry | 1 |
| Counter, Urine Particle | Federal registry | 1 |
| Cover, Cast | Federal registry | 1 |
| Cup, Eye | Federal registry | 1 |
| Curette | Federal registry | 1 |
| Detectors And Removers, Lice, (Including Combs) | Federal registry | 1 |
| Device, Acupressure | Federal registry | 1 |
| Device, General Purpose, Microbiology, Diagnostic | Federal registry | 1 |
| Dialysate Concentrate For Hemodialysis (Liquid Or Powder) | Federal registry | 1 |
| Diazo (Colorimetric), Nitrite (Urinary, Non-Quant) | Federal registry | 1 |
| Diazonium Colorimetry, Urobilinogen (Urinary, Non-Quant.) | Federal registry | 1 |
| Dilator, Vessel, Surgical | Federal registry | 1 |
| Dispenser, Liquid Medication | Federal registry | 1 |
| Dispenser, Solid Medication | Federal registry | 1 |
| Douche Apparatus, Vaginal, Therapeutic | Federal registry | 1 |
| Dressing, Compression | Federal registry | 1 |
| Dressing, Wound And Burn, Hydrogel W/Drug And/Or Biologic | Federal registry | 1 |
| Dressing, Wound, Hydrophilic | Federal registry | 1 |
| Dressing, Wound, Occlusive | Federal registry | 1 |
| Dropper, Ent | Federal registry | 1 |
| Drug-Eluting Peripheral Transluminal Angioplasty Catheter | Federal registry | 1 |
| Drug Eluting Permanent Right Ventricular (Rv) Or Right Atrial (Ra) Pacemaker Electrodes | Federal registry | 1 |
| Dura Substitute | Federal registry | 1 |
| Ear Irrigation Kit | Federal registry | 1 |
| Electrode, Cutaneous | Federal registry | 1 |
| Enema Kit | Federal registry | 1 |
| Enzyme Immunoassay, Digoxin | Federal registry | 1 |
| Enzyme Immunoassay, Inhibin-A | Federal registry | 1 |
