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ICD-10-PCS Body Part - B
Measurement and Monitoring, Physiological Systems, Monitoring, Gastrointestinal

The Gastrointestinal body part is identified by the character B in the 4th position of the ICD-10-PCS procedure code. It is contained within the Monitoring root operation of the Physiological Systems body system under the Measurement and Monitoring section. The 4the position refers to the body part or body region when applicable.

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:

4A1B - Gastrointestinal

  • Via Natural or Artificial Opening Approach

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

    • Motility
      • 4A1B78Z - Monitoring of Gastrointestinal Motility, Via Opening
    • Pressure
      • 4A1B7BZ - Monitoring of Gastrointestinal Pressure, Via Opening
    • Secretion
      • 4A1B7GZ - Monitoring of Gastrointestinal Secretion, 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

    • Motility
      • 4A1B88Z - Monitoring of Gastrointestinal Motility, Endo
    • Pressure
      • 4A1B8BZ - Monitoring of Gastrointestinal Pressure, Endo
    • Secretion
      • 4A1B8GZ - Monitoring of Gastrointestinal Secretion, 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

    • Vascular Perfusion
      • 4A1BXSH - Monitoring of GI Vasc Perfus using ICG dye, Extern Approach