| BXJ — Clip, Nose | Class 1 / AN |
| BXK — Gas, Calibration (Specified Concentration) | Class 1 / AN |
| BXL — Algesimeter, Manual | Class 1 / AN |
| BXM — Stimulator, Nerve, Ac-Powered | Class 2 / AN |
| BXN — Stimulator, Nerve, Battery-Powered | Class 2 / AN |
| BXO — Transducer, Gas Pressure | Class 1 / AN |
| BXP — Transducer, Gas Flow | Class 1 / AN |
| BXQ — Rhinoanemometer (Measurement Of Nasal Decongestion) | Class 2 / AN |
| BXR — Meter, Airway Pressure (Inspiratory Force) | Class 2 / AN |
| BXW — Calibrator, Volume, Gas | Class 1 / AN |
| BXX — Calibrator, Pressure, Gas | Class 1 / AN |
| BXY — Flowmeter, Calibration, Gas | Class 1 / AN |
| BYD — Condenser, Heat And Moisture (Artificial Nose) | Class 1 / AN |
| BYE — Attachment, Breathing, Positive End Expiratory Pressure | Class 2 / AN |
| BYF — Mask, Oxygen, Low Concentration, Venturi | Class 1 / AN |
| BYG — Mask, Oxygen | Class 1 / AN |
| BYH — Drain, Tee (Water Trap) | Class 1 / AN |
| BYI — Percussor, Powered-Electric | Class 2 / AN |
| BYJ — Unit, Liquid-Oxygen, Portable | Class 2 / AN |
| BYK — Tent, Oxygen, Electrically Powered | Class 2 / AN |
| BYL — Tent, Oxygen | Class 1 / AN |
| BYM — Tube, Thorpe, Uncompensated | Class 1 / AN |
| BYN — Chair, Posture, For Cardiac And Pulmonary Treatment | Class 1 / AN |
| BYO — Bottle, Blow | Class 1 / AN |
| BYP — Mouthpiece, Breathing | Class 1 / AN |
| BYR — Transducer, Gas Pressure, Differential | Class 1 / AN |
| BYS — Oxygenator, Long Term Support Greater Than 6 Hours | Class 2 / CV |
| BYT — Ventilator, External Body, Negative Pressure, Adult (Cuirass) | Class 2 / AN |
| BYW — Device, Rebreathing | Class 1 / AN |
| BYX — Tubing, Pressure And Accessories | Class 1 / AN |
| BYY — Tube, Aspirating, Flexible, Connecting | Class 2 / HO |
| BYZ — Trap, Sterile Specimen | Class 2 / HO |
| BZA — Connector, Airway (Extension) | Class 1 / AN |
| BZB — Catheter, Nasal, Oxygen | Class 1 / AN |
| BZC — Calculator, Pulmonary Function Data | Class 2 / AN |
| BZD — Ventilator, Non-Continuous (Respirator) | Class 2 / AN |
| BZE — Heater, Breathing System W/Wo Controller (Not Humidifier Or Nebulizer | Class 2 / AN |
| BZG — Spirometer, Diagnostic | Class 2 / AN |
| BZH — Meter, Peak Flow, Spirometry | Class 2 / AN |
| BZK — Spirometer, Monitoring (W/Wo Alarm) | Class 2 / AN |
| BZL — Computer, Oxygen-Uptake | Class 2 / AN |
| BZM — Calculator, Pulmonary Function Interpretor (Diagnostic) | Class 2 / AN |
| BZN — Cart, Emergency, Cardiopulmonary (Excluding Equipment) | Class 1 / AN |
| BZO — Set, Tubing And Support, Ventilator (W Harness) | Class 1 / AN |
| BZQ — Monitor, Breathing Frequency | Class 2 / AN |
| BZR — Mixer, Breathing Gases, Anesthesia Inhalation | Class 2 / AN |
| BZS — Stethoscope Head | Class 1 / AN |
| BZT — Stethoscope, Esophageal, With Electrical Conductors | Class 2 / AN |
| BZW — Stethoscope, Esophageal | Class 1 / AN |
| CAC — Apparatus, Autotransfusion | Class 2 / CV |