02124Z8Bypass Coronary Artery, Three Arteries from Right Internal Mammary, Percutaneous Endoscopic Approach

  • Billable / Specific Code
ICD-10-PCS 02124Z8
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

02124Z8 is a billable ICD-10-PCS procedure code for Bypass Coronary Artery, Three Arteries from Right Internal Mammary, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRGs 235, 236. The root operation Bypass involves altering the route of passage of the contents of a tubular body part.

Code Identity

ICD-10-PCS Code
02124Z8
Billable Status
Yes — Valid for Submission
Code Describes
Bypass Coronary Artery, Three Arteries from Right Internal Mammary, Percutaneous Endoscopic Approach
Parent Code
Short Description
Bypass 3 Cor Art from R Int Mammary, Perc Endo 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
4BodyPart2Coronary Artery, Three Arteries
5Approach4Percutaneous Endoscopic
6DeviceZNo Device
7Qualifier8Internal Mammary, Right

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 02124Z8 under the General Equivalence Mappings.

36.16
Approximate match.

Similar Procedure Codes

Questions About 02124Z8

Is 02124Z8 a billable code?

Yes. 02124Z8 is a complete seven-character ICD-10-PCS code, specific enough to report Bypass Coronary Artery, Three Arteries from Right Internal Mammary, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 02124Z8 mean?

02124Z8 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 2 is the BodyPart (Coronary Artery, Three Arteries); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character Z is the Device (No Device); the 7th character 8 is the Qualifier (Internal Mammary, Right).

What MS-DRG does 02124Z8 group to?

On an inpatient stay, Bypass Coronary Artery, Three Arteries from Right Internal Mammary, Percutaneous Endoscopic Approach maps to MS-DRGs 235, 236, with relative weights from 4.1888 to 5.8686. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 02124Z8?

Under the General Equivalence Mappings, Bypass Coronary Artery, Three Arteries from Right Internal Mammary, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 36.16. The mapping is approximate, so confirm it fits the documentation.