| QQU — Digital Therapy Device For Amblyopia | Class 2 / OP |
| QQV — Automated System For Sample Preparation And Identification Of Microorganisms From Cultured Isolates By Mass Spectrometry | Class 2 / MI |
| QQX — Respiratory Specimen Nucleic Acid Sars-Cov-2 Test | Class 2 / MI |
| QQY — Culture Plate Imaging System For Qualitative Assessment Of Resistant Organisms | Class 2 / MI |
| QRA — Virtual Reality Behavioral Therapy Device For Pain Relief | Class 2 / PM |
| QRB — Stimulator, Spinal-Cord, Totally Implanted For Relief Of Pain Due To Diabetic Neuropathy | Class 3 / NE |
| QRC — Non-Implanted Electrical Stimulation Device For Management Of Premature Ejaculation | Class 2 / GU |
| QRF — Multi-Analyte Test System With Algorithmic Analysis For Detection Of Prostate Cancer | Class 3 / IM |
| QRG — Ultrasound Guided Nerve Block Assist | Class 2 / AN |
| QRH — Catheter, Balloon, Urethral, Drug-Coated | Class 3 / GU |
| QRI — Surgical Planning Software For Neurological Stereotaxic Instruments | Class 2 / NE |
| QRJ — Laser-Powered Inferior Vena Cava Filter Retrieval Catheter | Class 2 / CV |
| QRK — Single Use Only Blood Lancet Without An Integral Sharps Injury Prevention Feature | Class 2 / SU |
| QRL — Multiple Use Blood Lancet For Single Patient Use Only | Class 2 / SU |
| QRM — Multiple Use Blood Lancet For Multiple Patient Use | Class 3 / SU |
| QRN — Radiation Therapy Marking Device | Class 2 / RA |
| QRQ — Non-Irrigation Endosseous Dental Implant Drill Bits | Class 1 / DE |
| QRR — Filler, Bone Void, Calcium Compound Containing Single Approved Aminoglycoside | Class 2 / OR |
| QRS — Device For Sleep Apnea Testing Based On Mandibular Movement | Class 2 / AN |
| QRU — Implant, Resorbable, For Articular Osteochondral Repair | Class 3 / OR |
| QRV — Setmelanotide Eligibility Gene Variant Detection System | Class 2 / CH |
| QRX — Continuous Glucose Monitor Informed Insulin Dose Calculator | Class 2 / CH |
| QRY — Dental Navigation System | Class 2 / DE |
| QRZ — External Condom For Anal Intercourse Or Vaginal Intercourse | Class 2 / OB |
| QSA — Circulating Tumor Cell (Ctc) Enrichment Device | Class 2 / PA |
| QSB — Orthosis, Truncal, Pregnancy | Class 1 / OB |
| QSD — Posterior Cervical Screw Placement Guide | Class 2 / OR |
| QSE — AlzheimerS Disease Pathology Assessment Test | Class 2 / IM |
| QSF — Software Option For Anesthesia Gas Machine To Achieve And Maintain Targeted End Tidal Oxygen And Anesthetic Agents | Class 3 / AN |
| QSH — Coronavirus Marker Detection | Class N / MI |
| QSK — Hybrid Stent Graft, Thoracic Aortic Lesion Treatment | Class 3 / CV |
| QSL — Brain Temperature Measurement System | Class 2 / NE |
| QSM — System, Surgical, Computer Controlled Instrument, Remanufactured | Class 2 / SU |
| QSN — Orthopedic Infection Microbial Multiplex Nucleic Acid Detection System | Class 2 / MI |
| QSO — Medical Gowns With Chemotherapy Labeling Claims - Tested For Use With Chemotherapy Drugs | Class 2 / HO |
| QSQ — Transcutaneous Electrical Nerve Stimulator To Treat Fibromyalgia Symptoms | Class 2 / NE |
| QSR — Sacroiliac Screw Placement Guide | Class 2 / OR |
| QSS — Hiv Self-Tests | Class 3 / MI |
| QST — Lab-Based Hiv Nat Diagnostic And/Or Supplemental Test | Class 2 / MI |
| QSU — Point Of Care Hiv Serology Diagnostic And/Or Supplemental Test | Class 2 / MI |
| QSV — Point Of Care Hiv Nat Diagnostic And/Or Supplemental Test | Class 2 / MI |
| QSW — Endoscopic Traction Device | Class 2 / GU |
| QSX — Hemostatic Wound Dressing With Thrombin Or Other Biologics | Class U / SU |
| QSY — Hemostatic Wound Dressing Without Thrombin Or Other Biologics | Class U / SU |
| QSZ — Absorbable Synthetic Wound Dressing | Class U / SU |
| QTA — Ngs Whole Genome Sequencing For Sars-Cov-2 Genetic Analysis | Class N / MI |
| QTB — Nitric Oxide Generator And Delivery System | Class 3 / AN |
| QTC — Adult Portable Bed Rails For Medical Purposes | Class 1 / PM |
| QTD — Endoscopic Suturing Device For Altering Gastric Anatomy For Weight Loss | Class 2 / GU |
| QTE — Thymidine Kinase Activity | Class 2 / IM |