4A12X45
4A12X45 — Monitoring of Cardiac Electrical Activity, Ambulatory, External Approach
Billable / specific codeICD-10-PCS
CMS abbreviated title: Monitor Cardiac Electr Activity, Ambulatory, Extern
How 4A12X45 is built
Every ICD-10-PCS code is seven independent character positions. Each one is a separate decision, and the meaning of a character depends on the positions before it.
- 4SectionMeasurement and Monitoring — What family of procedure this is
- ABody systemWhich system it acts on
- 1Root operationThe objective — the verb of the procedure
- 2Body partThe specific site
- XApproachHow the site was reached
- 4DeviceWhat was left in place, if anything
- 5QualifierA further distinction where one applies
Codes near 4A12X45
In CMS’s own ordering, which groups codes that differ by only the last character or two — usually the approach, device or qualifier.
- 4A127CZMonitoring of Cardiac Rate, Via Natural or Artificial Opening
- 4A127FZMonitoring of Cardiac Rhythm, Via Natural or Artificial Opening
- 4A127HZMonitoring of Cardiac Sound, Via Natural or Artificial Opening
- 4A1284ZMonitoring of Cardiac Electrical Activity, Via Natural or Artificial Opening Endoscopic
- 4A1289ZMonitoring of Cardiac Output, Via Natural or Artificial Opening Endoscopic
- 4A128CZMonitoring of Cardiac Rate, Via Natural or Artificial Opening Endoscopic
- 4A128FZMonitoring of Cardiac Rhythm, Via Natural or Artificial Opening Endoscopic
- 4A128HZMonitoring of Cardiac Sound, Via Natural or Artificial Opening Endoscopic
- 4A12X45Monitoring of Cardiac Electrical Activity, Ambulatory, External Approach
- 4A12X4ZMonitoring of Cardiac Electrical Activity, External Approach
- 4A12X9ZMonitoring of Cardiac Output, External Approach
- 4A12XCZMonitoring of Cardiac Rate, External Approach
- 4A12XFZMonitoring of Cardiac Rhythm, External Approach
- 4A12XHZMonitoring of Cardiac Sound, External Approach
- 4A12XM4Monitoring of Cardiac Stress, External Approach
- 4A12XSHMonitoring of Cardiac Vascular Perfusion using Indocyanine Green Dye, External Approach
- 4A13051Monitoring of Arterial Flow, Peripheral, Open Approach