03B04ZZExcision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach

  • Billable / Specific Code
ICD-10-PCS 03B04ZZ
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

03B04ZZ is a billable ICD-10-PCS procedure code for Excision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 6 MS-DRGs. The root operation Excision involves cutting out or off, without replacement, a portion of a body part.

Code Identity

ICD-10-PCS Code
03B04ZZ
Billable Status
Yes — Valid for Submission
Code Describes
Excision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach
Parent Code
Short Description
Excision of R Int Mamm Art, 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 System3Upper Arteries
3OperationBExcision
4BodyPart0Internal Mammary Artery, Right
5Approach4Percutaneous Endoscopic
6DeviceZNo Device
7QualifierZNo Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 03B04ZZ under the General Equivalence Mappings.

38.35
Approximate match.
38.65
Approximate match.

Similar Procedure Codes

Questions About 03B04ZZ

Is 03B04ZZ a billable code?

Yes. 03B04ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Excision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 03B04ZZ mean?

03B04ZZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 3 is the Body System (Upper Arteries); the 3rd character B is the Operation (Excision); the 4th character 0 is the BodyPart (Internal Mammary Artery, Right); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 03B04ZZ group to?

On an inpatient stay, Excision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach maps to MS-DRGs 163, 164, 165, 270, 271, 272, with relative weights from 1.9142 to 5.2763. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 03B04ZZ?

Under the General Equivalence Mappings, Excision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 38.35 and 38.65. The mapping is approximate, so confirm it fits the documentation.