ICD-10-PCS code structure

Section:
  4 = Measurement and Monitoring

Body System:
  A = Physiological Systems

Root Operation:
  0 = Measurement

Body Part:


See Terms used in Measurement and Monitoring

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

4A01 - Peripheral Nervous

  • Open Approach

    Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

    • Conductivity
      • 4A01029 - Measurement of PNS Conductivity, Sensory, Open Approach
      • 4A0102B - Measurement of PNS Conductivity, Motor, Open Approach
    • Electrical Activity
      • 4A0104Z - Measurement of PNS Electr Activity, Open Approach

  • Percutaneous Approach

    Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of the procedure

    • Conductivity
      • 4A01329 - Measurement of PNS Conductivity, Sensory, Perc Approach
      • 4A0132B - Measurement of PNS Conductivity, Motor, Perc Approach
    • Electrical Activity
      • 4A0134Z - Measurement of PNS Electr Activity, Perc Approach

  • Via Natural or Artificial Opening Approach

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

    • Conductivity
      • 4A01729 - Measurement of PNS Conductivity, Sensory, Via Opening
      • 4A0172B - Measurement of PNS Conductivity, Motor, Via Opening
    • Electrical Activity
      • 4A0174Z - Measurement of PNS Electr Activity, Via Opening

  • Via Natural or Artificial Opening Endoscopic Approach

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

    • Conductivity
      • 4A01829 - Measurement of PNS Conductivity, Sensory, Endo
      • 4A0182B - Measurement of Peripheral Nervous Conductivity, Motor, Endo
    • Electrical Activity
      • 4A0184Z - Measurement of Peripheral Nervous Electrical Activity, Endo

  • 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

    • Conductivity
      • 4A01X29 - Measurement of PNS Conductivity, Sensory, Extern Approach
      • 4A01X2B - Measurement of PNS Conductivity, Motor, Extern Approach
    • Electrical Activity
      • 4A01X4Z - Measurement of PNS Electr Activity, Extern Approach