02WA4RZRevision of Short-term External Heart Assist System in Heart, Percutaneous Endoscopic Approach

Medical and Surgical›Heart and Great Vessels›Revision
  • Billable / Specific Code
ICD-10-PCS 02WA4RZ
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

02WA4RZ is a billable ICD-10-PCS procedure code for Revision of Short-term External Heart Assist System in Heart, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRGs 001, 002, 215. The root operation Revision involves correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Heart assist device procedures.

Code Identity

ICD-10-PCS Code
02WA4RZ
Billable Status
Yes — Valid for Submission
Code Describes
Revision of Short-term External Heart Assist System in Heart, Percutaneous Endoscopic Approach
Short Description
Revision of Ext Heart Assist in Heart, Perc Endo Approach
Parent Code
02W

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
3OperationWRevision
4BodyPartAHeart
5Approach4Percutaneous Endoscopic
6DeviceRShort-term External Heart Assist System
7QualifierZNo Qualifier

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

Aortix(tm) System
Anatomy or device term that leads here
Impella(R) heart pump
Anatomy or device term that leads here
TandemHeart(R) System
Anatomy or device term that leads here
Centrimag(R) Blood Pump
Anatomy or device term that leads here
Revision of device in, Heart
Leads to this code's table
Resuture, Heart valve prosthesis
Leads to this code's table
BVS 5000 Ventricular Assist Device
Anatomy or device term that leads here
Cardiac Lead, Revision of device in, Heart
Leads to this code's table
Biventricular external heart assist system
Anatomy or device term that leads here
Thoratec Paracorporeal Ventricular Assist Device
Anatomy or device term that leads here
Pacemaker, Intracardiac, Revision of device in, Heart
Leads to this code's table
Heart Assist System, Implantable, Revision of device in, Heart
Leads to this code's table
Heart Assist System, Short-term External, Revision of device in, Heart
Leads to this code's table

To code resuture of the heart valve prosthesis, open the FY 2027 ICD-10-PCS Alphabetic Index at Resuture, then the subterm Heart valve prosthesis. The index leads to table 02W, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 02WA4RZ.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

CAR027
Heart assist device procedures
Clinical domain: Cardiovascular Procedures

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.

37.63
Repair of heart assist system
Approximate match.

Code History

Replaced in the FY 2027 code set by:
  • 02WA4RS — Revise Bivent Ext Heart Assist in Heart, Perc Endo

Similar Procedure Codes

Questions About 02WA4RZ

Is 02WA4RZ a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Revision of Short-term External Heart Assist System in Heart, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in 02WA4RZ mean?

The code 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 W is the Operation (Revision); the 4th character A is the BodyPart (Heart); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character R is the Device (Short-term External Heart Assist System); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 02WA4RZ group to?

On an inpatient stay, Revision of Short-term External Heart Assist System in Heart, Percutaneous Endoscopic Approach maps to MS-DRGs 001, 002, 215, with relative weights from 10.1416 to 28.0828. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 02WA4RZ?

Under the General Equivalence Mappings, Revision of Short-term External Heart Assist System in Heart, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 37.63 (Repair of heart assist system). The mapping is approximate, so confirm it fits the documentation.