| NMH — Laparoscope And Accessories, Gynecologic, Reprocessed | Class 2 / OB |
| NMI — Laparoscopic Insufflator And Accessories, Reprocessed | Class 1 / OB |
| NMJ — Clip, Implantable, Reprocessed | Class 2 / SU |
| NMK — Trocar, Reprocessed | Class 2 / CV |
| NML — Catheter, Biliary, Reprocessed | Class 2 / GU |
| NMM — Catheter, Angioplasty, Peripheral, Transluminal, Reprocessed | Class 2 / CV |
| NMN — Instrument, Clip, Forming/Cutting, Reprocessed | Class 1 / NE |
| NMP — Needle, Isotope, Reprocessed | Class 2 / RA |
| NMR — Needle, Spinal, Short Term, Reprocessed | Class 2 / AN |
| NMT — Needle, Catheter, Reprocessed | Class 1 / SU |
| NMU — Needle, Gastro-Urology, Reprocessed | Class 1 / SU |
| NMW — Needle, Dental, Reprocessed | Class 1 / DE |
| NMX — Needle And Needle Set, Gastro-Urology, Reprocessed | Class 2 / GU |
| NMY — Needle, Endoscopic, Reprocessed | Class 2 / GU |
| NNA — Biopsy Device, Percutaneous, Reprocessed | Class 1 / SU |
| NNB — Needle, Reproduction, Assisted, Reprocessed | Class 2 / OB |
| NNC — Needle, Aspiration And Needle, Reprocessed | Class 1 / SU |
| NNE — Needle, Fistula, Reprocessed | Class 2 / GU |
| NNG — Set, Dialysis, Single Needle With Uni-Directional Pump, Reprocessed | Class 2 / GU |
| NNH — Needle, Conduction, Anesthesia, Reprocessed | Class 2 / AN |
| NNI — Container, Specimen, Non-Sterile | Class 1 / HO |
| NNJ — Gustometer, Non-Sterile | Class 1 / EN |
| NNK — Container, Specimen Mailer And Storage, Non-Sterile | Class 1 / PA |
| NNL — Container, Specimen Mailer And Storage, Temperature Controlled, Non-Sterile | Class 1 / PA |
| NNN — Crimper, Wire, Ent, Non-Sterile | Class 1 / EN |
| NNO — Jig, Piston Cutting, Ent, Non-Sterile | Class 1 / EN |
| NNP — Die, Wire Bending, Ent, Non-Sterile | Class 1 / EN |
| NNQ — Forceps, Wire Closure, Ent, Non-Sterile | Class 1 / EN |
| NNR — Block, Cutting, Ent, Non-Sterile | Class 1 / EN |
| NNS — Instrument, Prosthesis Modification For Ossicular Replacement Surgery, Non-Sterile | Class 1 / EN |
| NNT — Punch, Gelfoam, Non-Sterile | Class 1 / EN |
| NNU — Scissors, Wire Cutting, Ent, Non-Sterile | Class 1 / EN |
| NNV — Vise, Ossicular Finger, Non-Sterile | Class 1 / EN |
| NNW — Bag, Urine Collection, Leg, For External Use, Non-Sterile | Class 1 / GU |
| NNX — Device, Incontinence, Urosheath Type, Non-Sterile | Class 1 / GU |
| NNY — Sheath, Corrugated Rubber, For Non-Indwelling Catheter, Non-Sterile | Class 1 / GU |
| NNZ — System, Urine Drainage, Closed, For Non-Indwelling Catheter, Non-Sterile | Class 1 / GU |
| NOA — Device, Paste-On For Incontinence, Non-Sterile | Class 1 / GU |
| NOB — Unit, Ultraviolet Sanitation/Sterilization (For Toothbrushes), Non-Sterile | Class 1 / DE |
| NOC — Splint, Extremity, Non-Inflatable, External, Non-Sterile | Class 1 / SU |
| NOD — Board, Arm (With Cover), Non-Sterile | Class 1 / SU |
| NOE — Test, System, Immunoassay, Lipoprotein-Associated Phospholipase A2 | Class 2 / IM |
| NOF — System, Optical Impression, Computer Assisted Design And Manufacturing (Cad/Cam) Of Dental Restorations | Class 2 / DE |
| NOG — Topographer, Corneal, Battery Powered | Class 1 / OP |
| NOH — Photokeratoscope, Battery Powered | Class 1 / OP |
| NOI — Stand, Instrument, Ophthalmic, Battery Powered | Class 1 / OP |
| NOJ — Prosthesis, Breast, External, No Adhesive | Class 1 / SU |
| NOK — Material, External Aesthetic Restoration, No Adhesive | Class 1 / SU |
| NOM — Antigen, Galactomannan, Aspergillus Spp. | Class 1 / MI |
| NON — Forceps, Biopsy, Non-Electric, Reprocessed | Class 1 / GU |