ICD-10-PCS code structure

Section:
  4 = Measurement and Monitoring

Body System:
  A = Physiological Systems

Root Operation:
  1 = Monitoring

Body Part:


See Terms used in Measurement and Monitoring

Select the appropriate procedure code based on the approach & device:

4A19 - Respiratory

  • Via Natural or Artificial Opening Approach

    Entry of instrumentation through a natural or artificial external opening to reach the site of the procedure

    • Capacity
      • 4A1971Z - Monitoring of Respiratory Capacity, Via Opening
    • Flow
      • 4A1975Z - Monitoring of Respiratory Flow, Via Opening
    • Rate
      • 4A197CZ - Monitoring of Respiratory Rate, Via Opening
    • Resistance
      • 4A197DZ - Monitoring of Respiratory Resistance, Via Opening
    • Volume
      • 4A197LZ - Monitoring of Respiratory Volume, Via Opening

  • External Approach

    Procedures performed directly on the skin or mucous membrane and procedures performed indirectly by the application of external force through the skin or mucous membrane

    • Capacity
      • 4A19X1Z - Monitoring of Respiratory Capacity, External Approach
    • Flow
      • 4A19X5Z - Monitoring of Respiratory Flow, External Approach
    • Rate
      • 4A19XCZ - Monitoring of Respiratory Rate, External Approach
    • Resistance
      • 4A19XDZ - Monitoring of Respiratory Resistance, External Approach
    • Volume
      • 4A19XLZ - Monitoring of Respiratory Volume, External Approach