03703DZDilation of Right Internal Mammary Artery with Intraluminal Device, Percutaneous Approach

  • Billable / Specific Code
ICD-10-PCS 03703DZ
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

03703DZ is a billable ICD-10-PCS procedure code for Dilation of Right Internal Mammary Artery with Intraluminal Device, Percutaneous 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
03703DZ
Billable Status
Yes — Valid for Submission
Code Describes
Dilation of Right Internal Mammary Artery with Intraluminal Device, Percutaneous Approach
Parent Code
Short Description
Dilation of R Int Mamm Art with Intralum Dev, Perc 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
3Operation7Dilation
4BodyPart0Internal Mammary Artery, Right
5Approach3Percutaneous
6DeviceDIntraluminal Device
7QualifierZNo Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 03703DZ 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).
45
Approximate match; combination (more than one code may be needed).

Code History

Replaced in the FY 2026 code set by:
  • 03703D1 — Dilate R Int Mamm Art w Intralum Dev, Drug Blln, Perc
  • 03703EZ — Dilate of R Int Mamm Art with 2 Intralum Dev, Perc Approach
  • 03703FZ — Dilate of R Int Mamm Art with 3 Intralum Dev, Perc Approach
  • 03703GZ — Dilate of R Int Mamm Art with 4+ Intralum Dev, Perc Approach

Similar Procedure Codes

Questions About 03703DZ

Is 03703DZ a billable code?

Yes. 03703DZ is a complete seven-character ICD-10-PCS code, specific enough to report Dilation of Right Internal Mammary Artery with Intraluminal Device, Percutaneous Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 03703DZ mean?

03703DZ 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 3 is the Approach (Percutaneous); the 6th character D is the Device (Intraluminal Device); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 03703DZ group to?

On an inpatient stay, Dilation of Right Internal Mammary Artery with Intraluminal Device, Percutaneous 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 03703DZ?

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