| 4 Measurement and Monitoring | |||
| A Physiological Systems | |||
| 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 | 0 Open | 2 Conductivity 4 Electrical Activity B Pressure | Z No Qualifier |
| 0 Central Nervous | 3 Percutaneous | B Pressure K Temperature R Saturation | D Intracranial |
| 0 Central Nervous | 7 Via Natural or Artificial Opening | B Pressure K Temperature R Saturation | D Intracranial |
| 1 Peripheral Nervous | 0 Open 3 Percutaneous X External | 4 Electrical Activity | Z No Qualifier |
| 7 Visual | X External | 0 Acuity 7 Mobility B Pressure | Z No Qualifier |
| Z None | X External | 6 Metabolism K Temperature Q Sleep | Z No Qualifier |
| 0 Central Nervous | 3 Percutaneous | 4 Electrical Activity | Z No Qualifier |
| 2 Cardiac | X External | M Total Activity | 4 Stress |
| 5 Circulatory | X External | L Volume | Z No Qualifier |
| 8 Olfactory | X External | 0 Acuity | Z No Qualifier |
| 0 Central Nervous | X External | 2 Conductivity 4 Electrical Activity | Z No Qualifier |
| 2 Cardiac | X External | 4 Electrical Activity | A Guidance Z No Qualifier |
| 4 Venous | 0 Open 3 Percutaneous | R Saturation | 1 Peripheral |
| F Musculoskeletal | 3 Percutaneous X External | 3 Contractility | Z No Qualifier |
| Z None | 7 Via Natural or Artificial Opening | 6 Metabolism K Temperature | Z No Qualifier |
| 1 Peripheral Nervous | 0 Open 3 Percutaneous X External | 2 Conductivity | 9 Sensory B Motor |
| 2 Cardiac | 0 Open 3 Percutaneous | N Sampling and Pressure | 6 Right Heart 7 Left Heart 8 Bilateral |
| B Gastrointestinal | 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic | 8 Motility B Pressure G Secretion | Z No Qualifier |
| 2 Cardiac | 0 Open 3 Percutaneous | 4 Electrical Activity 9 Output C Rate F Rhythm H Sound P Action Currents | Z No Qualifier |
| 3 Arterial | 0 Open 3 Percutaneous | 5 Flow J Pulse | 1 Peripheral 3 Pulmonary C Coronary |
| H Products of Conception, Cardiac | 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic X External | 4 Electrical Activity C Rate F Rhythm H Sound | Z No Qualifier |
| 2 Cardiac | X External | 9 Output C Rate F Rhythm H Sound P Action Currents | Z No Qualifier |
| 3 Arterial | X External | 5 Flow B Pressure H Sound J Pulse R Saturation | 1 Peripheral |
| D Urinary | 7 Via Natural or Artificial Opening | 3 Contractility 5 Flow B Pressure D Resistance L Volume | Z No Qualifier |
| 3 Arterial | 0 Open 3 Percutaneous | B Pressure | 1 Peripheral 3 Pulmonary C Coronary F Other Thoracic |
| C Biliary | 3 Percutaneous 4 Percutaneous Endoscopic 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic | 5 Flow B Pressure | Z No Qualifier |
| 3 Arterial | 0 Open 3 Percutaneous | H Sound R Saturation | 1 Peripheral |
| 4 Venous | X External | 5 Flow B Pressure J Pulse R Saturation | 1 Peripheral |
| 6 Lymphatic | 0 Open 3 Percutaneous | 5 Flow B Pressure | Z No Qualifier |
| 4 Venous | 0 Open 3 Percutaneous | 5 Flow B Pressure J Pulse | 0 Central 1 Peripheral 2 Portal 3 Pulmonary |
| 9 Respiratory | 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic X External | 1 Capacity 5 Flow C Rate D Resistance L Volume M Total Activity | Z No Qualifier |
| J Products of Conception, Nervous | 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic X External | 2 Conductivity 4 Electrical Activity B Pressure | Z No Qualifier |