| 4 Measurement and Monitoring | |||
| B Physiological Devices | |||
| 0 Measurement : Determining the level of a physiological or physical function at a point in time | |||
| Body System | Approach | Function / Device | Qualifier |
| Character 4 | Character 5 | Character 6 | Character 7 |
| 0 Central Nervous 1 Peripheral Nervous F Musculoskeletal | X External | V Stimulator | Z No Qualifier |
| 2 Cardiac | X External | S Pacemaker T Defibrillator | Z No Qualifier |
| 9 Respiratory | X External | S Pacemaker | Z No Qualifier |