| QBX — Direct Blood Bacterial Nucleic Acid Detection System | Class 2 / MI |
| QBY — Positive Airway Pressure System | Class 2 / AN |
| QBZ — Automated Platform Consisting Of Software And Instrumentation For Pooling And/Or Lysing Donor Blood, Serum, Or Plasma | Class 1 / CH |
| QCA — Intracranial Coil-Assist Stent | Class 3 / NE |
| QCB — Phakic Toric Intraocular Lens | Class 3 / OP |
| QCC — Insulin Pump Therapy Adjustment Calculator For Healthcare Professionals | Class 2 / CH |
| QCD — Continuous Glucose Monitor, Implanted, Adjunctive Use | Class 3 / CH |
| QCF — Electrical Tongue Stimulator To Treat Motor Deficits | Class 2 / NE |
| QCG — Filler, Bone Void, Calcium Compound, Lower Extremity Use, Use On Bone Marrow Lesions | Class N / OR |
| QCH — Assayed Quality Control Material For Clinical Microbiology Assays | Class 2 / MI |
| QCI — Transcranial Magnetic Stimulation System For Obsessive-Compulsive Disorder | Class 2 / NE |
| QCJ — Closed Loop Auto Titration Device For Oral Appliances | Class 2 / DE |
| QCL — Acid-Sphingomyelinase (Asm) Newborn Screening Test System | Class 2 / CH |
| QCM — ß-Galactocerebrosidase (Galc) Newborn Screening Test System | Class 2 / CH |
| QCR — Wound Autofluorescence Imaging Device | Class 1 / SU |
| QCT — Scaffold, Dissection Repair | Class 3 / CV |
| QCU — Dengue Virus Antigen Assay | Class 2 / MI |
| QCW — Corneal Storage Media With Preservatives Including Anti-Fungal | Class 2 / OP |
| QCX — Retrograde Intubation Set | Class 2 / AN |
| QCY — Laser Absorbing Particles | Class 2 / SU |
| QCZ — Mechanical And Enzymatic Autologous Skin Processor For Cell Suspension, With Applicator | Class 3 / HE |
| QDA — Electrocardiograph Software For Over-The-Counter Use | Class 2 / CV |
| QDB — Photoplethysmograph Analysis Software For Over-The-Counter Use | Class 2 / CV |
| QDC — Dna-Based Test For Minimal Residual Disease For Hematologic Malignancies | Class 2 / PA |
| QDD — Self-Fitting Air-Conduction Hearing Aid, Prescription | Class 2 / EN |
| QDF — Parathyroid Autofluorescence Detection Device | Class 2 / SU |
| QDG — Parathyroid Autofluorescence Imaging Device | Class 2 / SU |
| QDH — Menopause Test System | Class 2 / CH |
| QDI — Fish Based Detection Of Chromosomal Abnormalities From Patients With Hematologic Malignancies | Class 2 / PA |
| QDJ — Direct-To-Consumer Access Pharmacogenetic Assessment System | Class 2 / CH |
| QDK — Integrated Continuous Glucose Monitoring System For Non-Intensive Diabetes Management | Class 2 / CH |
| QDL — Integrated Continuous Glucose Monitoring System For Professional Retrospective Use | Class 2 / CH |
| QDM — Midazolam Syringe | Class 2 / HO |
| QDO — Fentanyl And Other Opioid Protection Glove | Class 1 / HO |
| QDP — Respiratory Panel | Class 2 / MI |
| QDQ — Radiological Computer Assisted Detection/Diagnosis Software For Lesions Suspicious For Cancer | Class 2 / RA |
| QDR — Plazomicin Test System, Immunoassay | Class 2 / TX |
| QDS — Mers-Cov And Common Respiratory Pathogens Semi-Quantitative And Quantitative Multiplex Nucleic Acid Detection System | Class 2 / MI |
| QDT — Shoe With Adjustable Sole Units | Class 1 / PM |
| QDV — Iol Tray | Class 1 / OP |
| QDW — Phaco Kit | Class 2 / OP |
| QDY — Vitrectomy Kit | Class 2 / OP |
| QDZ — Qualitative Cytomegalovirus Nucleic Acid-Based Detection Device For Congenital Cytomegalovirus Infection | Class 2 / MI |
| QEA — Brain Injury Adjunctive Interpretive Oculomotor Assessment Aid | Class 2 / NE |
| QEB — Ventilatory Electrical Impedance Tomograph | Class 2 / AN |
| QEC — Forceps, Biopsy, Electric Surgical Hemostasis Within Tracheobronchial Tree | Class 2 / AN |
| QEF — Pressure Ulcer Management Tool | Class 1 / GU |
| QEH — Piston Syringe With Neuraxial Connector Epidural, Peripheral, And/Or Indirect Cerebral Spinal Fluid Contact | Class 2 / HO |
| QEI — Breast Milk Macronutrients Test System | Class 2 / CH |
| QEJ — Flushing Solution For Short Term Storage Of Veins At Room Temperature During Coronary Artery Bypass Graft Surgeries | Class 2 / GU |