MCMedicalCodingSoftware
021R4AA

021R4AA — Bypass Left Pulmonary Artery from Innominate Artery with Autologous Arterial Tissue, Percutaneous Endoscopic Approach

Billable / specific codeICD-10-PCS

CMS abbreviated title: Bypass L Pulm Art from Innom Art w Autol Art, Perc Endo

How 021R4AA 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.

  1. 0SectionMedical and Surgical — What family of procedure this is
  2. 2Body systemWhich system it acts on
  3. 1Root operationThe objective — the verb of the procedure
  4. RBody partThe specific site
  5. 4ApproachHow the site was reached
  6. ADeviceWhat was left in place, if anything
  7. AQualifierA further distinction where one applies

Codes near 021R4AA

In CMS’s own ordering, which groups codes that differ by only the last character or two — usually the approach, device or qualifier.

  • 021R0ZBBypass Left Pulmonary Artery from Subclavian with No Device, Open Approach
  • 021R0ZDBypass Left Pulmonary Artery from Carotid with No Device, Open Approach
  • 021R48ABypass Left Pulmonary Artery from Innominate Artery with Zooplastic Tissue, Percutaneous Endoscopic Approach
  • 021R48BBypass Left Pulmonary Artery from Subclavian with Zooplastic Tissue, Percutaneous Endoscopic Approach
  • 021R48DBypass Left Pulmonary Artery from Carotid with Zooplastic Tissue, Percutaneous Endoscopic Approach
  • 021R49ABypass Left Pulmonary Artery from Innominate Artery with Autologous Venous Tissue, Percutaneous Endoscopic Approach
  • 021R49BBypass Left Pulmonary Artery from Subclavian with Autologous Venous Tissue, Percutaneous Endoscopic Approach
  • 021R49DBypass Left Pulmonary Artery from Carotid with Autologous Venous Tissue, Percutaneous Endoscopic Approach
  • 021R4AABypass Left Pulmonary Artery from Innominate Artery with Autologous Arterial Tissue, Percutaneous Endoscopic Approach
  • 021R4ABBypass Left Pulmonary Artery from Subclavian with Autologous Arterial Tissue, Percutaneous Endoscopic Approach
  • 021R4ADBypass Left Pulmonary Artery from Carotid with Autologous Arterial Tissue, Percutaneous Endoscopic Approach
  • 021R4JABypass Left Pulmonary Artery from Innominate Artery with Synthetic Substitute, Percutaneous Endoscopic Approach
  • 021R4JBBypass Left Pulmonary Artery from Subclavian with Synthetic Substitute, Percutaneous Endoscopic Approach
  • 021R4JDBypass Left Pulmonary Artery from Carotid with Synthetic Substitute, Percutaneous Endoscopic Approach
  • 021R4KABypass Left Pulmonary Artery from Innominate Artery with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach
  • 021R4KBBypass Left Pulmonary Artery from Subclavian with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach
  • 021R4KDBypass Left Pulmonary Artery from Carotid with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach
ICD-10-PCSFY2026