4A0074ZBillable procedure code
Measurement of Central Nervous Electrical Activity, Via Natural or Artificial Opening
Measurement and Monitoring·Physiological Systems·Table 4A0·FY 2027
Measurement of Central Nervous Electrical Activity, Via Natural or Artificial Opening corresponds to ICD-10-PCS code 4A0074Z, found in table 4A0, part of Section 4 (Measurement and Monitoring). It applies to the Physiological Systems body system. Its root operation is Measurement. The approach used is Via Natural or Artificial Opening.
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What the code means
Measurement: root operation
Determining the level of a physiological or physical function at a point in time
Via Natural or Artificial Opening: approach
Entry of instrumentation through a natural or artificial external opening to reach the site of the procedure