02170ZUBypass Left Atrium to Pulmonary Vein Confluence, Open Approach

  • Billable / Specific Code
ICD-10-PCS 02170ZU
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

02170ZU is a billable ICD-10-PCS procedure code for Bypass Left Atrium to Pulmonary Vein Confluence, Open Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 8 MS-DRGs. The root operation Bypass involves altering the route of passage of the contents of a tubular body part.

Code Identity

ICD-10-PCS Code
02170ZU
Billable Status
Yes — Valid for Submission
Code Describes
Bypass Left Atrium to Pulmonary Vein Confluence, Open Approach
Parent Code
Short Description
Bypass Left Atrium to Pulm Vn Cnfl, Open Approach

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

PositionDesignationValueMeaning
1Section0Medical and Surgical
2Body System2Heart and Great Vessels
3Operation1Bypass
4BodyPart7Atrium, Left
5Approach0Open
6DeviceZNo Device
7QualifierUPulmonary Vein, Confluence

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 02170ZU under the General Equivalence Mappings.

35.82
Approximate match.

Code History

Replaces previously assigned code(s):
  • 02QS0ZZ — Repair Right Pulmonary Vein, Open Approach
  • 02QT0ZZ — Repair Left Pulmonary Vein, Open Approach

Similar Procedure Codes

Questions About 02170ZU

Is 02170ZU a billable code?

Yes. 02170ZU is a complete seven-character ICD-10-PCS code, specific enough to report Bypass Left Atrium to Pulmonary Vein Confluence, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 02170ZU mean?

02170ZU breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 2 is the Body System (Heart and Great Vessels); the 3rd character 1 is the Operation (Bypass); the 4th character 7 is the BodyPart (Atrium, Left); the 5th character 0 is the Approach (Open); the 6th character Z is the Device (No Device); the 7th character U is the Qualifier (Pulmonary Vein, Confluence).

What MS-DRG does 02170ZU group to?

On an inpatient stay, Bypass Left Atrium to Pulmonary Vein Confluence, Open Approach maps to MS-DRGs 228, 229, 907, 908, 909, 957, 958, 959, with relative weights from 1.3127 to 7.6199. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 02170ZU?

Under the General Equivalence Mappings, Bypass Left Atrium to Pulmonary Vein Confluence, Open Approach crosswalks to ICD-9-PCS 35.82. The mapping is approximate, so confirm it fits the documentation.