| Marker, Radiographic, Implantable | Federal registry | 1 |
| Mattress, Flotation Therapy, Non-Powered | Federal registry | 1 |
| Medical Device Data System | Federal registry | 1 |
| Mesh, Surgical, Collagen, Plastic And Reconstructive Surgery | Federal registry | 1 |
| Mesh, Surgical, Deployment Balloon | Federal registry | 1 |
| Mesh, Surgical, For Stress Urinary Incontinence, Male | Federal registry | 1 |
| Mesh, Surgical, Polymeric | Federal registry | 1 |
| Mixture, Hematology Quality Control | Federal registry | 1 |
| Monitor, Bed Patient | Federal registry | 1 |
| Monitor, Orthotic/Prosthetic | Federal registry | 1 |
| Motor, Drill, Electric | Federal registry | 1 |
| Multi-Analyte Controls Unassayed | Federal registry | 1 |
| Myoglobin, Antigen, Antiserum, Control | Federal registry | 1 |
| Needle, Aspiration And Injection, Disposable | Federal registry | 1 |
| Needle, Aspiration And Injection, Reusable | Federal registry | 1 |
| Needle, Catheter | Federal registry | 1 |
| Needle, Conduction, Anesthetic (W/Wo Introducer) | Federal registry | 1 |
| Needle, Hypodermic, Single Lumen | Federal registry | 1 |
| Neurosurgical Nerve Locator | Federal registry | 1 |
| Operating Room Accessories Table Tray | Federal registry | 1 |
| Orthosis, Cranial | Federal registry | 1 |
| Orthosis, Foot Drop | Federal registry | 1 |
| Orthosis, Lumbar | Federal registry | 1 |
| Orthosis, Lumbo-Sacral | Federal registry | 1 |
| Orthosis, Sacroiliac, Soft | Federal registry | 1 |
| Orthosis, Spinal Pedicle Fixation | Federal registry | 1 |
| Orthosis, Spondylolisthesis Spinal Fixation | Federal registry | 1 |
| Orthosis, Thoracic | Federal registry | 1 |
| Orthosis, Truncal/Orthosis, Limb | Federal registry | 1 |
| Osmometer For Clinical Use | Federal registry | 1 |
| Osteotome | Federal registry | 1 |
| Over-The-Counter Powered Light Based Laser For Acne | Federal registry | 1 |
| Pad, Heating, Powered | Federal registry | 1 |
| Paper, Articulation | Federal registry | 1 |
| Passer | Federal registry | 1 |
| Passer, Wire, Orthopedic | Federal registry | 1 |
| Peripheral Mechanical Thrombectomy With Aspiration | Federal registry | 1 |
| Permanent Defibrillator Electrodes | Federal registry | 1 |
| Pill Crusher/Cutter | Federal registry | 1 |
| Pin, Fixation, Smooth | Federal registry | 1 |
| Platelet And Plasma Separator For Bone Graft Handling | Federal registry | 1 |
| Pneumoperitoneum Needle | Federal registry | 1 |
| Port & Catheter, Implanted, Subcutaneous, Intravascular | Federal registry | 1 |
| Probe | Federal registry | 1 |
| Probe, Radiofrequency Lesion | Federal registry | 1 |
| Prognostic Test For Assessment Of Liver Related Disease Progression | Federal registry | 1 |
| Prostate-Specific Antigen (Psa) For Management Of Prostate Cancers | Federal registry | 1 |
| Prosthesis, Elbow, Hemi-, Radial, Polymer | Federal registry | 1 |
| Prosthesis, Esophageal | Federal registry | 1 |
| Prosthesis, Hip, Femoral, Resurfacing | Federal registry | 1 |
