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ICD-10-PCS Body System X
New Technology, Physiological Systems

The Physiological Systems body system is identified by the character “X” in the 2nd character position and grouped within the New Technology section of the ICD-10-PCS coding structure. The 2nd character of an ICD-10-PCS code defines the particular body system or general physiological system or anatomical region involved.

ICD-10-PCS code structure

Section:
  X = New Technology

Body System:

See Terms used in New Technology

The 3rd character refers to the root operation or the objective of the procedure.

Physiological Systems

  • XXE - Measurement

    Determining the level of a physiological or physical function at a point in time

  • XX2 - Monitoring

    Determining the level of a physiological or physical function repetitively over a period of time