4A12X45Billable procedure code
Monitoring of Cardiac Electrical Activity, Ambulatory, External Approach
Measurement and Monitoring·Physiological Systems·Table 4A1·FY 2027
In ICD-10-PCS, code 4A12X45 describes Monitoring of Cardiac Electrical Activity, Ambulatory, External Approach. This procedure is listed in table 4A1, part of Section 4 (Measurement and Monitoring). Its root operation is Monitoring. The approach used is External.
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What the code means
Monitoring: root operation
Determining the level of a physiological or physical function repetitively over a period of time
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