ICD-10-PCS Code For Chordae Tendineae: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 02U9 includes procedures performed to supplement chordae tendineae in the heart and great vessels. These ICD-10-PCS codes are used for inpatient documentation when biological or synthetic material is placed to reinforce or augment the function of chordae tendineae. Accurate coding within the ICD-10-PCS 02U9 group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Chordae Tendineae Supplement Procedure Overview

Procedures in this group involve placing biological or synthetic material to reinforce or augment the function of the chordae tendineae within the heart and great vessels. These procedures target the heart and great vessels body system and specifically address the chordae tendineae. Accurate coding of these supplement procedures is important for inpatient reimbursement because it documents the use of reinforcing materials and supports severity and resource use determinations. Correct assignment ensures clinical interventions are captured for appropriate 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
U	Operation	Supplement
9	Body Part	Chordae Tendineae

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ICD-10-PCS Code For Chordae Tendineae: Procedure Code Group Overview

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Chordae Tendineae Supplement Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
2	Body System	Heart and Great Vessels
U	Operation	Supplement
9	Body Part	Chordae Tendineae

When to Use

Use a code from this group when material is implanted or affixed to the chordae tendineae to improve or support their function. These codes apply when the primary action is supplementing the chordae tendineae rather than replacing or repairing them.

ICD-10-PCS Codes

12 rows

ICD-10-PCS Code	Description
02U907Z	Supplement Chordae Tendineae with Autologous Tissue Substitute, Open Approach
02U908Z	Supplement Chordae Tendineae with Zooplastic Tissue, Open Approach
02U90JZ	Supplement Chordae Tendineae with Synthetic Substitute, Open Approach
02U90KZ	Supplement Chordae Tendineae with Nonautologous Tissue Substitute, Open Approach
02U937Z	Supplement Chordae Tendineae with Autologous Tissue Substitute, Percutaneous Approach
02U938Z	Supplement Chordae Tendineae with Zooplastic Tissue, Percutaneous Approach
02U93JZ	Supplement Chordae Tendineae with Synthetic Substitute, Percutaneous Approach
02U93KZ	Supplement Chordae Tendineae with Nonautologous Tissue Substitute, Percutaneous Approach
02U947Z	Supplement Chordae Tendineae with Autologous Tissue Substitute, Percutaneous Endoscopic Approach
02U948Z	Supplement Chordae Tendineae with Zooplastic Tissue, Percutaneous Endoscopic Approach

Showing 1–10 of 12

DRG Codes

2 rows

DRG Code	Description
228	Other Cardiothoracic Procedures with MCC
229	Other Cardiothoracic Procedures without MCC

Typical Clinical Scenarios

An elderly patient with severe degenerative mitral regurgitation presents electively for mitral valve repair due to prolapse of the posterior leaflet and elongated chordae causing leaflet tethering; during open left thoracotomy/median sternotomy the surgeon places artificial material to reinforce and shorten dysfunctional chordae to restore leaflet coaptation, aiming to preserve the native valve and improve hemodynamics. Typical codes: 02U90JZ, 02U907Z
A middle-aged patient presents emergently with acute ischemic papillary muscle dysfunction after myocardial infarction, causing sudden severe mitral regurgitation and pulmonary edema; during urgent open surgical intervention the operative team supplements ruptured or severely compromised chordae tendineae with synthetic or nonautologous graft material to stabilize the valve apparatus and control regurgitation. Typical codes: 02U90JZ, 02U90KZ
A younger patient with prior transcatheter mitral valve repair develops recurrent symptomatic regurgitation due to chordal elongation identified on imaging; during a planned percutaneous endoscopic procedure the operator augments the involved chordae with autologous or synthetic substitute material to reinforce function without full valve replacement. Typical codes: 02U947Z, 02U94JZ

Related Codes

02U0-CORONARY-ARTERY-SUPPLEMENT

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

02U1-CORONARY-ARTERY-SUPPLEMENT

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

02U2-CORONARY-ARTERY-SUPPLEMENT

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

02U3-CORONARY-ARTERY-SUPPLEMENT

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

02U5-ATRIAL-SEPTUM-SUPPLEMENT

ICD-10-PCS Code For Atrial Septum: Procedure Code Group Overview

02U6-ATRIUM-RIGHT-SUPPLEMENT

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

02U7-LEFT-ATRIUM-SUPPLEMENT

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

02UA-HEART-SUPPLEMENT

ICD-10-PCS Code For Heart: Procedure Code Group Overview

02UD-PAPILLARY-MUSCLE-SUPPLEMENT

ICD-10-PCS Code For Papillary Muscle: Procedure Code Group Overview

02UF-AORTIC-VALVE-SUPPLEMENT

ICD-10-PCS Code For Aortic Valve: Procedure Code Group Overview

Showing 1–10 of 25

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

12 rows

ICD-10-PCS Code	Description
02U907Z	Supplement Chordae Tendineae with Autologous Tissue Substitute, Open Approach
02U908Z	Supplement Chordae Tendineae with Zooplastic Tissue, Open Approach
02U90JZ	Supplement Chordae Tendineae with Synthetic Substitute, Open Approach
02U90KZ	Supplement Chordae Tendineae with Nonautologous Tissue Substitute, Open Approach
02U937Z	Supplement Chordae Tendineae with Autologous Tissue Substitute, Percutaneous Approach
02U938Z	Supplement Chordae Tendineae with Zooplastic Tissue, Percutaneous Approach
02U93JZ	Supplement Chordae Tendineae with Synthetic Substitute, Percutaneous Approach
02U93KZ	Supplement Chordae Tendineae with Nonautologous Tissue Substitute, Percutaneous Approach
02U947Z	Supplement Chordae Tendineae with Autologous Tissue Substitute, Percutaneous Endoscopic Approach
02U948Z	Supplement Chordae Tendineae with Zooplastic Tissue, Percutaneous Endoscopic Approach

Showing 1–10 of 12

DRG Codes

2 rows

DRG Code	Description
228	Other Cardiothoracic Procedures with MCC
229	Other Cardiothoracic Procedures without MCC

Typical Clinical Scenarios

An elderly patient with severe degenerative mitral regurgitation presents electively for mitral valve repair due to prolapse of the posterior leaflet and elongated chordae causing leaflet tethering; during open left thoracotomy/median sternotomy the surgeon places artificial material to reinforce and shorten dysfunctional chordae to restore leaflet coaptation, aiming to preserve the native valve and improve hemodynamics. Typical codes: 02U90JZ, 02U907Z
A middle-aged patient presents emergently with acute ischemic papillary muscle dysfunction after myocardial infarction, causing sudden severe mitral regurgitation and pulmonary edema; during urgent open surgical intervention the operative team supplements ruptured or severely compromised chordae tendineae with synthetic or nonautologous graft material to stabilize the valve apparatus and control regurgitation. Typical codes: 02U90JZ, 02U90KZ
A younger patient with prior transcatheter mitral valve repair develops recurrent symptomatic regurgitation due to chordal elongation identified on imaging; during a planned percutaneous endoscopic procedure the operator augments the involved chordae with autologous or synthetic substitute material to reinforce function without full valve replacement. Typical codes: 02U947Z, 02U94JZ

Related Codes

02U0-CORONARY-ARTERY-SUPPLEMENT

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

02U1-CORONARY-ARTERY-SUPPLEMENT

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

02U2-CORONARY-ARTERY-SUPPLEMENT

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

02U3-CORONARY-ARTERY-SUPPLEMENT

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

02U5-ATRIAL-SEPTUM-SUPPLEMENT

ICD-10-PCS Code For Atrial Septum: Procedure Code Group Overview

02U6-ATRIUM-RIGHT-SUPPLEMENT

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

02U7-LEFT-ATRIUM-SUPPLEMENT

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

02UA-HEART-SUPPLEMENT

ICD-10-PCS Code For Heart: Procedure Code Group Overview

02UD-PAPILLARY-MUSCLE-SUPPLEMENT

ICD-10-PCS Code For Papillary Muscle: Procedure Code Group Overview

02UF-AORTIC-VALVE-SUPPLEMENT

ICD-10-PCS Code For Aortic Valve: Procedure Code Group Overview

Showing 1–10 of 25

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 Chordae Tendineae: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Chordae Tendineae: Procedure Code Group Overview policy alerts

Chordae Tendineae Supplement Procedure Overview

Code Attributes

ICD-10-PCS Code For Chordae Tendineae: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Chordae Tendineae: Procedure Code Group Overview policy alerts

Chordae Tendineae Supplement Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which body system and body part does ICD-10-PCS code group 02U9 target?

What operation is represented by ICD-10-PCS codes in the 02U9 group?

What approaches are specified within the 02U9 code set and how are materials differentiated?

How does accurate coding within 02U9 affect inpatient claims and reimbursement?

Which related DRGs are associated with procedures in the 02U9 code group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which body system and body part does ICD-10-PCS code group 02U9 target?

What operation is represented by ICD-10-PCS codes in the 02U9 group?

What approaches are specified within the 02U9 code set and how are materials differentiated?

How does accurate coding within 02U9 affect inpatient claims and reimbursement?

Which related DRGs are associated with procedures in the 02U9 code group?

References