03704EZDilation of Right Internal Mammary Artery with Two Intraluminal Devices, Percutaneous Endoscopic Approach

  • Billable / Specific Code
ICD-10-PCS 03704EZ
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

03704EZ is a billable ICD-10-PCS procedure code for Dilation of Right Internal Mammary Artery with Two Intraluminal Devices, 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 252, 253, 254. The root operation Dilation involves expanding an orifice or the lumen of a tubular body part.

Code Identity

ICD-10-PCS Code
03704EZ
Billable Status
Yes — Valid for Submission
Code Describes
Dilation of Right Internal Mammary Artery with Two Intraluminal Devices, Percutaneous Endoscopic Approach
Parent Code
Short Description
Dilate R Int Mamm Art w 2 Intralum Dev, Perc Endo

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
3Operation7Dilation
4BodyPart0Internal Mammary Artery, Right
5Approach4Percutaneous Endoscopic
6DeviceEIntraluminal Device, Two
7QualifierZNo Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 03704EZ under the General Equivalence Mappings.

39.50
Approximate match; combination (more than one code may be needed).
40
Approximate match; combination (more than one code may be needed).
39.90
Approximate match; combination (more than one code may be needed).
46
Approximate match; combination (more than one code may be needed).

Code History

Replaces previously assigned code(s):
  • 03704DZ — Dilate R Int Mamm Art w Intralum Dev, Perc Endo

Similar Procedure Codes

Questions About 03704EZ

Is 03704EZ a billable code?

Yes. 03704EZ is a complete seven-character ICD-10-PCS code, specific enough to report Dilation of Right Internal Mammary Artery with Two Intraluminal Devices, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 03704EZ mean?

03704EZ 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 7 is the Operation (Dilation); the 4th character 0 is the BodyPart (Internal Mammary Artery, Right); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character E is the Device (Intraluminal Device, Two); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 03704EZ group to?

On an inpatient stay, Dilation of Right Internal Mammary Artery with Two Intraluminal Devices, Percutaneous Endoscopic Approach maps to MS-DRGs 252, 253, 254, with relative weights from 1.7817 to 3.4883. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 03704EZ?

Under the General Equivalence Mappings, Dilation of Right Internal Mammary Artery with Two Intraluminal Devices, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 39.50, 40, and 39.90. The mapping is approximate, so confirm it fits the documentation.