| QTF — Reprocessed Atherectomy Catheter | Class 2 / CV |
| QTG — Infant Supine Sleep System | Class 2 / HO |
| QTH — Endoscopic Light-Projecting Measuring Device | Class 2 / GU |
| QTI — Saline Vascular Access Flush With Integrated Alcohol Disinfectant Device | Class 2 / HO |
| QTK — Temporary Percutaneous Transluminal Cerebral Artery Dilatation Device | Class f / NE |
| QTM — Assayed External Control Material For Microbiology Nucleic Acid Amplification (Nat) Assays For Blood Donor Screening. | Class 2 / MI |
| QTN — Orally Ingested Transient Device For Constipation | Class 2 / GU |
| QTO — Digital Visual Acuity Test | Class 1 / OP |
| QTP — Reagents, Monkeypox Virus Nucleic Acid. | Class N / MI |
| QTQ — Reagents, Non-Variola Orthopoxvirus Nucleic Acid. | Class N / MI |
| QTT — Over The Counter Electrical Salivary Stimulatory System | Class 2 / DE |
| QTU — Reagents, Non-Variola Orthopoxvirus Or Monkeypox Virus Singleplex Antigen Tests | Class N / MI |
| QTV — Mattress And Bed Deck Cover (Medical Purposes) | Class 1 / HO |
| QTW — Digital Amsler Grid | Class 1 / OP |
| QTY — Von Willebrand Factor Assay | Class 2 / HE |
| QTZ — Radiological Image Processing Software For Ablation Therapy Planning And Evaluation | Class 2 / RA |
| QUA — Intraoral Cooling Device | Class 2 / DE |
| QUB — Suction Lipoplasty System For Removal And Transfer | Class 2 / SU |
| QUD — Blood Detection Capsule | Class 2 / GU |
| QUE — Spinal Muscular Atrophy Newborn Screening Test System | Class 2 / MG |
| QUF — Hearing Aid, Air-Conduction, Over The Counter | Class 1 / EN |
| QUG — Hearing Aid, Air-Conduction With Wireless Technology, Over The Counter | Class 2 / EN |
| QUH — Self-Fitting Air-Conduction Hearing Aid, Over The Counter | Class 2 / EN |
| QUJ — Automated Cryopreservation Storage System | Class 2 / OB |
| QUK — Human Leukocyte Antigen (Hla) Typing Companion Diagnostic Test | Class 2 / IM |
| QUL — Immunohistochemistry Assay, Antibody, Folr1 | Class 3 / PA |
| QUM — Human Immunodeficiency Virus (Hiv) Viral Load Monitoring Test | Class 2 / CH |
| QUN — Tether Accessory For Use In The Gastrointestinal Tract | Class 2 / GU |
| QUO — Adjunctive Heart Failure Status Indicator | Class 2 / CV |
| QUQ — Knife, Intraocular Pressure Lowering | Class 2 / OP |
| QUR — Prescription Spectacle Lenses To Reduce The Progression Of Myopia | Class 2 / OP |
| QUT — Deformability Cytometry For Sepsis Risk Assessment | Class 2 / MI |
| QUU — Simple In Vitro Diagnostic Device For The Detection Of Secreted Proteins From Bacillus Spp. In Human Clinical Samples | Class 2 / MI |
| QUV — Phase-Changing Fiducial Marker For Radiation Therapy | Class 2 / RA |
| QUW — Mesh, Surgical, Non-Resorbable, Orthopedics, Reinforcement Of Ligament | Class 2 / OR |
| QVA — Fludeoxyglucose F18-Guided Radiation Therapy System | Class 2 / RA |
| QVB — Biological Sterilization Indicator With Indirect Growth Detection | Class 2 / HO |
| QVC — Ventilator Waveform Analysis Software | Class 2 / AN |
| QVD — Radiological Machine Learning Based Quantitative Imaging Software With Change Control Plan | Class 2 / RA |
| QVE — Adjunctive Pain Measurement Device For Anesthesiology | Class 2 / AN |
| QVF — Simple Point-Of-Care Device To Directly Detect Sars-Cov-2 Viral Targets From Clinical Specimens In Near-Patient Settings | Class 2 / MI |
| QVG — Embolization Agent, Vascular | Class 3 / CV |
| QVI — Screw Sleeve Bone Fixation Device, Spine | Class 2 / OR |
| QVJ — Low Power Electrosurgical Devices For Skin Lesion Destruction | Class 2 / SU |
| QVL — Absorbable Gel For Intraoperative Use In Spine Surgery | Class 2 / OR |
| QVN — Combined Acoustic And Electrical External Stimulation Device For The Relief Of Tinnitus | Class 2 / EN |
| QVO — Computerized Behavioral Therapy Device For Insomnia | Class 2 / NE |
| QVP — Sars-Cov-2 Serology Test | Class 2 / MI |
| QVQ — Extravascular Support For An Arteriovenous Fistula For Vascular Access | Class 2 / CV |
| QVR — Multiplex Nucleic Acid Detection System For Biothreat Agents | Class 2 / MI |