| NWG — Autoantibodies, Glutamic Acid Decarboxylase (Gad) | Class 2 / IM |
| NWI — Electrosurgical Electrode Kit | Class 2 / GU |
| NWJ — Suture, Recombinant Technology | Class 2 / SU |
| NWM — Immunoassay, Anti-Seizure Drug | Class 2 / TX |
| NWN — Laparoscopic Bone Anchor Urethropexy Instrument Kit | Class 2 / OR |
| NWO — Kit, Catheter, Urinary (Exludes Hiv Testing) | Class 2 / GU |
| NWP — Suprapubic Cystostomy Catheter Kit | Class 2 / GU |
| NWS — Kit, Choledochoscope, Flexible And Rigid | Class 2 / GU |
| NWT — Endoscopic Cholangiogram Kit | Class 2 / GU |
| NWU — Endoscope Introducer Kit | Class 2 / GU |
| NWV — Laparoscopic Accessories, Gynecologic | Class 1 / OB |
| NWW — Hysteroscope Accessories | Class 1 / OB |
| NWX — Catheter, Percutaneous Transluminal Coronary Angioplasty (Ptca), Cutting/Scoring | Class 3 / CV |
| NWY — Test, Qualitative, Detection Of Dengue Igm And Igg Antibodies | Class N / MI |
| NWZ — Gas Chromatography, Bacillus Anthracis Membrane Fatty Acids | Class 2 / MI |
| NXA — Tracheotomy Care Kit | Class 2 / AN |
| NXB — Dispenser, Solid Medication | Class 1 / HO |
| NXC — Aligner, Sequential | Class 2 / DE |
| NXD — Nucleic Acid Amplification, Novel Influenza A Virus, A/H5 (Asian Lineage) Rna | Class 2 / MI |
| NXE — Walker, Mechanical, Poly Vinyl Chloride (Pvc) | Class 1 / PM |
| NXF — Gas, Laser Generating | Class 1 / SU |
| NXG — Fluorescence In Situ Hybridization, Topoisomerase Ii Alpha, Gene Amplification And Deletion | Class 3 / PA |
| NXH — Nursing Pad, Cohesive Gel | Class 1 / HO |
| NXJ — Denture, Cosmetic Only | Class N / DE |
| NXM — Prosthesis, Eyelid Spacer/Graft, Biologic | Class 2 / OP |
| NXO — Calprotectin, Fecal | Class 2 / IM |
| NXQ — Reminder, Medication | Class 1 / HO |
| NXR — Fixation, Vision Training, Binocular | Class 1 / OP |
| NXT — Prosthesis, Hip, Semi-Constrained, Metal/Metal, Resurfacing | Class 3 / OR |
| NXV — Diagnostic Light, Soft Tissue Detector | Class 2 / DE |
| NXW — Scaffold, Infrapopliteal, Absorbable | Class 3 / CV |
| NXX — Fish (Fluorescent In Situ Hybridization) Kit, Protein Nucleic Acid, Rna, Staphylococcus Aureus | Class 1 / MI |
| NXZ — Dental Hygiene Kit | Class 1 / DE |
| NYC — Dental Prophylaxis Kit | Class 1 / DE |
| NYD — Endodontic Kit | Class 2 / DE |
| NYE — Fixture Mount Kit | Class 1 / DE |
| NYF — Gingival Retraction Kit | Class 1 / DE |
| NYG — Lapping Tool Kit | Class 1 / DE |
| NYH — Plaque Disclosing Kit | Class 2 / DE |
| NYI — Classifier, Prognostic, Recurrence Risk Assessment, Rna Gene Expression, Breast Cancer | Class 2 / PA |
| NYK — Ophthalmodynamometer, Diagnostic Contact Lens, Polymethylmethacrylate (Pmma) | Class 2 / OP |
| NYL — Handpiece, Air-Powered, Root Canal Irrigation | Class 1 / DE |
| NYN — Stimulator, Electrical, Transcutaneous, For Arthritis | Class 2 / NE |
| NYO — Autoantibodies, Anti-Ribonucleic Acid Polymerase (Rnap) Iii Antibody | Class 2 / IM |
| NYQ — Chromogenic In Situ Hybridization, Nucleic Acid Amplification, Her2/Neu Gene, Breast Cancer | Class 3 / IM |
| NYS — Wound Dressing With Poly(Diallyl Dimethyl Ammonium Chloride)(Pdadmac) | Class 2 / SU |
| NYT — Prosthesis, Tracheal, Expandable, Polymeric | Class 2 / SU |
| NYU — Catheter, Hemodialysis, Implanted, Coated | Class 2 / GU |
| NYV — Gastrointestinal Motility System, Capsule | Class 2 / GU |
| NYW — Stimulator, Nerve, Electrical, Transcutaneous, With Limited Output, For Pain Relief | Class 2 / NE |