| Lithotriptor, Electro-Hydraulic | Federal registry | 1 |
| Liver Biopsy Kit | Federal registry | 1 |
| Locator, Magnetic | Federal registry | 1 |
| Loop, Wire | Federal registry | 1 |
| Loupe, Binocular, Low Power | Federal registry | 1 |
| Loupe, Diagnostic/Surgical | Federal registry | 1 |
| Lumbar Puncture Tray (Adult & Pediatric) | Federal registry | 1 |
| Magnet, Permanent | Federal registry | 1 |
| Magnifier, Hand-Held, Low-Vision | Federal registry | 1 |
| Mallet | Federal registry | 1 |
| Mallet, Surgical, General & Plastic Surgery | Federal registry | 1 |
| Marker, Ocular | Federal registry | 1 |
| Marker, Periodontic | Federal registry | 1 |
| Marker, Radiographic, Implantable | Federal registry | 1 |
| Marker, Sclera | Federal registry | 1 |
| Marker, Skin | Federal registry | 1 |
| Mask, Gas, Anesthetic | Federal registry | 1 |
| Mask, Surgical | Federal registry | 1 |
| Massager, Therapeutic, Electric | Federal registry | 1 |
| Mesh, Surgical | Federal registry | 1 |
| Mesh, Surgical, Absorbable, Orthopaedics, Reinforcement Of Tendon | Federal registry | 1 |
| Microscope, Operating & Accessories, Ac-Powered, Ophthalmic | Federal registry | 1 |
| Microscope, Surgical | Federal registry | 1 |
| Microscope, Surgical, General & Plastic Surgery | Federal registry | 1 |
| Mirror, General & Plastic Surgery | Federal registry | 1 |
| Mirror, Headband, Ophthalmic | Federal registry | 1 |
| Mixer, Breathing Gases, Anesthesia Inhalation | Federal registry | 1 |
| Mobilizer, Ent | Federal registry | 1 |
| Monitor, Airway Pressure (Includes Gauge And/Or Alarm) | Federal registry | 1 |
| Monitor And/Or Control, Level Sensing, Cardiopulmonary Bypass | Federal registry | 1 |
| Monitor, Bed Patient | Federal registry | 1 |
| Monitor, Blood-Gas, On-Line, Cardiopulmonary Bypass | Federal registry | 1 |
| Monitor, Breathing Frequency | Federal registry | 1 |
| Monitor, Esophageal Motility, Anorectal Motility, And Tube | Federal registry | 1 |
| Monitor, Pressure, Intracompartmental | Federal registry | 1 |
| Motor, Surgical Instrument, Ac-Powered | Federal registry | 1 |
| Motor, Surgical Instrument, Pneumatic Powered | Federal registry | 1 |
| Mouthguard, Prescription | Federal registry | 1 |
| Nebulizer (Direct Patient Interface) | Federal registry | 1 |
| Needle, Conduction, Anesthetic (W/Wo Introducer) | Federal registry | 1 |
| Needle, Gastro-Urology | Federal registry | 1 |
| Needle, Neurosurgical Suture | Federal registry | 1 |
| Needle, Ophthalmic Suturing | Federal registry | 1 |
| Needle, Suturing, Disposable | Federal registry | 1 |
| Needle, Suturing, Reusable | Federal registry | 1 |
| Needle, Tonsil Suturing | Federal registry | 1 |
| Neurological Stereotaxic Instrument | Federal registry | 1 |
| Nipper, Malleus | Federal registry | 1 |
| Non-Bronchoscopic Bronchoalveolar Lavage Catheter | Federal registry | 1 |
| Non-Surgical Gown | Federal registry | 1 |
