| MXD — Recorder, Event, Implantable Cardiac, (With Arrhythmia Detection) | Class 2 / CV |
| MXF — System, Dental, Hydrokinetic, Caries Removal & Cavity Preparation | Class 2 / DE |
| MXG — Lamp, Uvc, (For Treating Skin And Wounds) | Class 2 / SU |
| MXJ — Enzyme Linked Immunosorbent Assay, Herpes Simplex Virus, Hsv-1 | Class 2 / MI |
| MXK — Device, Analysis, Anterior Segment | Class 2 / OP |
| MXM — Cap, Cooling (Infants) | Class 3 / NE |
| MXO — Laser, System, Phacolysis | Class 2 / OP |
| MXP — Bone Particle Collector | Class 1 / EN |
| MXQ — Stent, Urethral, External Sphincter, Permanent | Class 3 / GU |
| MXT — Device, Accessory, Cooling Plate For Tissue Embedding Station | Class 1 / CH |
| MXW — Suture, Surgical, Nonabsorbable, Poly (Vinylidene Fluoride) | Class 2 / SU |
| MXY — Cannula, Ophthalmic, Posterior Capsular Polishing, Polyvinyl Acetal | Class 1 / OP |
| MXZ — Immunohistochemistry Assay, Antibody, Progesterone Receptor | Class 2 / PA |
| MYA — Immunohistochemistry Antibody Assay, Estrogen Receptor | Class 2 / PA |
| MYB — Pillow, Cervical (For Mild Sleep Apnea) | Class 2 / EN |
| MYC — Ophthalmoscope, Laser, Scanning | Class 2 / OP |
| MYD — Keratome, Water Jet | Class 1 / OP |
| MYE — System, Electrogastrography (Egg) | Class 2 / GU |
| MYF — Enzyme Linked Immunosorbent Assay, Herpes Simplex Virus, Hsv-2 | Class 2 / MI |
| MYH — System, Non-Coherent Light, Photodynamic Therapy | Class 3 / SU |
| MYI — System, Test, Genotypic Detection, Resistant Markers, Staphylococcus Colonies | Class 2 / MI |
| MYJ — Device, Mixing And Weighing, Semi-Automated | Class 2 / HE |
| MYK — Kit, Cord Blood Collection | Class N / HE |
| MYL — Assay,Enzyme Linked Immunosorbent,Parvovirus B19 Igg | Class 3 / MI |
| MYM — Assay,Enzyme Linked Immunosorbent,Parvovirus B19 Igm | Class 3 / MI |
| MYN — Analyzer, Medical Image | Class 2 / RA |
| MYP — Test, Platelet Antibody | Class 2 / HE |
| MYR — Test, Donor, Syphilis, Antigens, Treponemal | Class 2 / IM |
| MYS — Device, Ahf, Automated Cryoprecipitation | Class N / HE |
| MYT — Biosensor, Immunoassay, Cpk Or Isoenzymes | Class 2 / CH |
| MYU — Accessory, Barium Sulfate, Methyl Methacrylate For Cranioplasty | Class 2 / NE |
| MYW — Irradiation, Blood Indicators | Class N / HE |
| MYX — System, Blood Collection, Vacuum-Assisted, Automated | Class 1 / HE |
| MYY — Separator, Semi-Automated, Blood Component | Class 1 / HE |
| MYZ — Kit, Test (Donors), For Bloodborne Pathogen | Class 2 / IM |
| MZA — Test, Equipment, Automated Bloodborne Pathogen | Class N / IM |
| MZC — System, Detection, Bacterial, For Platelet Transfusion Products | Class 1 / IM |
| MZD — System, In-Office Tinting, Contact Lenses | Class 2 / OP |
| MZE — Test, Donor, Cmv | Class 2 / IM |
| MZF — Test, Hiv Detection | Class 2 / MI |
| MZG — Test, Residual, Wbc In Leukoreduced Blood | Class 2 / HE |
| MZH — Test, Quantitative, For Hla, Non-Diagnostic | Class N / HE |
| MZI — Test, Qualitative, For Hla, Non-Diagnostic | Class U / HE |
| MZK — System, Separation, Hematopoietic Stem Cell | Class 3 / HE |
| MZL — Kit, Test, Quality Control For Endotoxin | Class N / IM |
| MZM — Fibrin Sealant Preparation Device | Class 2 / HE |
| MZO — Assay, Enzyme Linked Immunosorbent, Hepatitis C Virus | Class 2 / MI |
| MZP — Assay, Hybridization And/Or Nucleic Acid Amplification For Detection Of Hepatitis C Rna,Hepatitis C Virus | Class 2 / MI |
| MZQ — Balloon, Detachable, For Neurovascular Occlusion | Class 2 / NE |
| MZR — Topical Approximation System | Class 1 / HO |