ICD-10-PCS Code For Pulmonary Trunk: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 021P includes procedures performed to bypass structures in the pulmonary trunk. These ICD-10-PCS codes are used for inpatient documentation when a surgical bypass of the pulmonary trunk is performed to alter the route of blood flow. Accurate coding within the ICD-10-PCS 021P group is essential for proper inpatient reimbursement, as it captures the procedure performed and determines appropriate case mix and payment.

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Pulmonary Trunk Bypass Procedure Overview

This procedure group includes bypass operations involving the pulmonary trunk within the heart and great vessels body system. Procedures in this group create an alternative route for blood flow around or through the pulmonary trunk. Accurate ICD-10-PCS coding of these bypass procedures is important for inpatient reimbursement because it documents the specific surgical intervention and supports correct case mix and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
2	Body System	Heart and Great Vessels
1	Operation	Bypass
P	Body Part	Pulmonary Trunk

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ICD-10-PCS Code For Pulmonary Trunk: Procedure Code Group Overview

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Pulmonary Trunk Bypass Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
2	Body System	Heart and Great Vessels
1	Operation	Bypass
P	Body Part	Pulmonary Trunk

When to Use

Use a code from this group when a surgical bypass of the pulmonary trunk is performed to redirect blood flow as part of treatment. Codes in this group apply when the operation specifically alters the route of passage of blood through the pulmonary trunk during an inpatient admission.

ICD-10-PCS Codes

36 rows

ICD-10-PCS Code	Description
021P08A	Bypass Pulmonary Trunk from Innominate Artery with Zooplastic Tissue, Open Approach
021P08B	Bypass Pulmonary Trunk from Subclavian with Zooplastic Tissue, Open Approach
021P08D	Bypass Pulmonary Trunk from Carotid with Zooplastic Tissue, Open Approach
021P09A	Bypass Pulmonary Trunk from Innominate Artery with Autologous Venous Tissue, Open Approach
021P09B	Bypass Pulmonary Trunk from Subclavian with Autologous Venous Tissue, Open Approach
021P09D	Bypass Pulmonary Trunk from Carotid with Autologous Venous Tissue, Open Approach
021P0AA	Bypass Pulmonary Trunk from Innominate Artery with Autologous Arterial Tissue, Open Approach
021P0AB	Bypass Pulmonary Trunk from Subclavian with Autologous Arterial Tissue, Open Approach
021P0AD	Bypass Pulmonary Trunk from Carotid with Autologous Arterial Tissue, Open Approach
021P0JA	Bypass Pulmonary Trunk from Innominate Artery with Synthetic Substitute, Open Approach

Showing 1–10 of 36

DRG Codes

12 rows

DRG Code	Description
166	Other Respiratory System O.R. Procedures with MCC
167	Other Respiratory System O.R. Procedures with CC
168	Other Respiratory System O.R. Procedures without CC/MCC
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC
907	Other O.R. Procedures for Injuries with MCC
908	Other O.R. Procedures for Injuries with CC
909	Other O.R. Procedures for Injuries without CC/MCC
957	Other O.R. Procedures for Multiple Significant Trauma with MCC

Showing 1–10 of 12

Typical Clinical Scenarios

A middle-aged patient presents emergently with acute right ventricular outflow tract obstruction due to traumatic disruption of the main pulmonary trunk after blunt chest trauma, causing severe hypoxemia and hemodynamic instability. Surgical teams perform an open bypass to reestablish pulmonary blood flow using an arterial conduit harvested from the patient to restore continuity between a proximal systemic artery and the pulmonary trunk. The inpatient procedure is coded to reflect an open bypass of the pulmonary trunk using autologous arterial tissue from the specified donor vessel. Typical codes: 021P0AA, 021P0AD
An adult with progressive pulmonary valve dysfunction and complex congenital pulmonary trunk stenosis is scheduled electively for surgical creation of an alternate route to decompress the right ventricle. The planned operation is an open bypass from the subclavian artery to the pulmonary trunk using a synthetic vascular graft to redirect blood flow and relieve obstruction. Coding should reflect an open pulmonary trunk bypass from the specified systemic artery with a synthetic substitute device. Typical codes: 021P0AB, 021P0JB
A patient who previously underwent a pulmonary trunk bypass now presents with graft infection and thrombosis, necessitating removal of the infected conduit and reconstruction with a nonautologous biologic patch conduit to reestablish pulmonary blood flow. The operation is performed via a percutaneous endoscopic-assisted approach to minimize reoperative chest trauma while creating a new bypass route to the pulmonary trunk. The code must capture a bypass to the pulmonary trunk from the identified donor artery using a nonautologous tissue substitute via the endoscopic approach. Typical codes: 021P4KB, 021P4KD

Related Codes

0210-CORONARY-ARTERY-BYPASS

ICD-10-PCS Code For Coronary Artery: Procedure Code Group Overview

0211-CORONARY-ARTERY-BYPASS

ICD-10-PCS Code For Coronary Artery: Procedure Code Group Overview

0212-CORONARY-ARTERY-THREE-ARTERIES-BYPASS

ICD-10-PCS Code For Coronary Artery, Three Arteries: Procedure Code Group Overview

0213-CORONARY-ARTERY-BYPASS

ICD-10-PCS Code For Coronary Artery, Four Or More Arteries: Procedure Code Group Overview

0216-ATRIUM-RIGHT-BYPASS

ICD-10-PCS Code For Atrium Right: Procedure Code Group Overview

0217-LEFT-ATRIUM-BYPASS

ICD-10-PCS Code For Atrium, Left: Procedure Code Group Overview

021K-VENTRICLE-RIGHT-BYPASS

ICD-10-PCS Code For Right Ventricle: Procedure Code Group Overview

021L-LEFT-VENTRICLE-BYPASS

ICD-10-PCS Code For Ventricle, Left: Procedure Code Group Overview

021Q-PULMONARY-ARTERY-RIGHT-BYPASS

ICD-10-PCS Code For Pulmonary Artery, Right: Procedure Code Group Overview

021R-PULMONARY-ARTERY-LEFT-BYPASS

ICD-10-PCS Code For Pulmonary Artery Left: Procedure Code Group Overview

Showing 1–10 of 13

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-PCS Codes

36 rows

ICD-10-PCS Code	Description
021P08A	Bypass Pulmonary Trunk from Innominate Artery with Zooplastic Tissue, Open Approach
021P08B	Bypass Pulmonary Trunk from Subclavian with Zooplastic Tissue, Open Approach
021P08D	Bypass Pulmonary Trunk from Carotid with Zooplastic Tissue, Open Approach
021P09A	Bypass Pulmonary Trunk from Innominate Artery with Autologous Venous Tissue, Open Approach
021P09B	Bypass Pulmonary Trunk from Subclavian with Autologous Venous Tissue, Open Approach
021P09D	Bypass Pulmonary Trunk from Carotid with Autologous Venous Tissue, Open Approach
021P0AA	Bypass Pulmonary Trunk from Innominate Artery with Autologous Arterial Tissue, Open Approach
021P0AB	Bypass Pulmonary Trunk from Subclavian with Autologous Arterial Tissue, Open Approach
021P0AD	Bypass Pulmonary Trunk from Carotid with Autologous Arterial Tissue, Open Approach
021P0JA	Bypass Pulmonary Trunk from Innominate Artery with Synthetic Substitute, Open Approach

Showing 1–10 of 36

DRG Codes

12 rows

DRG Code	Description
166	Other Respiratory System O.R. Procedures with MCC
167	Other Respiratory System O.R. Procedures with CC
168	Other Respiratory System O.R. Procedures without CC/MCC
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC
907	Other O.R. Procedures for Injuries with MCC
908	Other O.R. Procedures for Injuries with CC
909	Other O.R. Procedures for Injuries without CC/MCC
957	Other O.R. Procedures for Multiple Significant Trauma with MCC

Showing 1–10 of 12

Typical Clinical Scenarios

A middle-aged patient presents emergently with acute right ventricular outflow tract obstruction due to traumatic disruption of the main pulmonary trunk after blunt chest trauma, causing severe hypoxemia and hemodynamic instability. Surgical teams perform an open bypass to reestablish pulmonary blood flow using an arterial conduit harvested from the patient to restore continuity between a proximal systemic artery and the pulmonary trunk. The inpatient procedure is coded to reflect an open bypass of the pulmonary trunk using autologous arterial tissue from the specified donor vessel. Typical codes: 021P0AA, 021P0AD
An adult with progressive pulmonary valve dysfunction and complex congenital pulmonary trunk stenosis is scheduled electively for surgical creation of an alternate route to decompress the right ventricle. The planned operation is an open bypass from the subclavian artery to the pulmonary trunk using a synthetic vascular graft to redirect blood flow and relieve obstruction. Coding should reflect an open pulmonary trunk bypass from the specified systemic artery with a synthetic substitute device. Typical codes: 021P0AB, 021P0JB
A patient who previously underwent a pulmonary trunk bypass now presents with graft infection and thrombosis, necessitating removal of the infected conduit and reconstruction with a nonautologous biologic patch conduit to reestablish pulmonary blood flow. The operation is performed via a percutaneous endoscopic-assisted approach to minimize reoperative chest trauma while creating a new bypass route to the pulmonary trunk. The code must capture a bypass to the pulmonary trunk from the identified donor artery using a nonautologous tissue substitute via the endoscopic approach. Typical codes: 021P4KB, 021P4KD

Related Codes

0210-CORONARY-ARTERY-BYPASS

ICD-10-PCS Code For Coronary Artery: Procedure Code Group Overview

0211-CORONARY-ARTERY-BYPASS

ICD-10-PCS Code For Coronary Artery: Procedure Code Group Overview

0212-CORONARY-ARTERY-THREE-ARTERIES-BYPASS

ICD-10-PCS Code For Coronary Artery, Three Arteries: Procedure Code Group Overview

0213-CORONARY-ARTERY-BYPASS

ICD-10-PCS Code For Coronary Artery, Four Or More Arteries: Procedure Code Group Overview

0216-ATRIUM-RIGHT-BYPASS

ICD-10-PCS Code For Atrium Right: Procedure Code Group Overview

0217-LEFT-ATRIUM-BYPASS

ICD-10-PCS Code For Atrium, Left: Procedure Code Group Overview

021K-VENTRICLE-RIGHT-BYPASS

ICD-10-PCS Code For Right Ventricle: Procedure Code Group Overview

021L-LEFT-VENTRICLE-BYPASS

ICD-10-PCS Code For Ventricle, Left: Procedure Code Group Overview

021Q-PULMONARY-ARTERY-RIGHT-BYPASS

ICD-10-PCS Code For Pulmonary Artery, Right: Procedure Code Group Overview

021R-PULMONARY-ARTERY-LEFT-BYPASS

ICD-10-PCS Code For Pulmonary Artery Left: Procedure Code Group Overview

Showing 1–10 of 13

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-PCS Code For Pulmonary Trunk: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Pulmonary Trunk: Procedure Code Group Overview policy alerts

Pulmonary Trunk Bypass Procedure Overview

Code Attributes

ICD-10-PCS Code For Pulmonary Trunk: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Pulmonary Trunk: Procedure Code Group Overview policy alerts

Pulmonary Trunk Bypass Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system cover pulmonary trunk bypass procedures?

How do I identify the approach and device in a code from this group?

What specific tissue or device options are represented in the 021P code list?

Which source vessels are listed as origins for bypass to the pulmonary trunk in these codes?

What DRG categories might inpatient cases coded with 021P procedures map to?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system cover pulmonary trunk bypass procedures?

How do I identify the approach and device in a code from this group?

What specific tissue or device options are represented in the 021P code list?

Which source vessels are listed as origins for bypass to the pulmonary trunk in these codes?

What DRG categories might inpatient cases coded with 021P procedures map to?

References