037434ZDilation of Left Subclavian Artery with Drug-eluting Intraluminal Device, Percutaneous Approach

Medical and Surgical›Upper Arteries›Dilation
  • Billable / Specific Code
ICD-10-PCS 037434Z
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

037434Z is a billable ICD-10-PCS procedure code for Dilation of Left Subclavian Artery with Drug-eluting Intraluminal Device, Percutaneous Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 33 MS-DRGs. The root operation Dilation involves expanding an orifice or the lumen of a tubular body part.

Code Identity

ICD-10-PCS Code
037434Z
Billable Status
Yes — Valid for Submission
Code Describes
Dilation of Left Subclavian Artery with Drug-eluting Intraluminal Device, Percutaneous Approach
Parent Code
037
Short Description
Dilate of L Subclav Art with Drug-elut Intra, 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
4BodyPart4Subclavian Artery, Left
5Approach3Percutaneous
6Device4Intraluminal Device, Drug-eluting
7QualifierZNo Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 037434Z 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).
55
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:
  • 037435Z — Dilation of L Subclav Art with 2 Drug-elut, Perc Approach
  • 037436Z — Dilation of L Subclav Art with 3 Drug-elut, Perc Approach
  • 037437Z — Dilation of L Subclav Art with 4 Drug-elut, Perc Approach

Similar Procedure Codes

Questions About 037434Z

Is 037434Z a billable code?

Yes. 037434Z is a complete seven-character ICD-10-PCS code, specific enough to report Dilation of Left Subclavian Artery with Drug-eluting Intraluminal Device, Percutaneous Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 037434Z mean?

037434Z 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 4 is the BodyPart (Subclavian Artery, Left); the 5th character 3 is the Approach (Percutaneous); the 6th character 4 is the Device (Intraluminal Device, Drug-eluting); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 037434Z group to?

On an inpatient stay, Dilation of Left Subclavian Artery with Drug-eluting Intraluminal Device, Percutaneous Approach maps to MS-DRGs 037, 038, 039, 166, 167, 168, 252, 253, 254, 356, 357, 358, 423, 424, 425, 515, 516, 517, 579, 580, 581, 628, 629, 630, 673, 674, 675, 907, 908, 909, 957, 958, 959, with relative weights from 1.1755 to 7.6199. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 037434Z?

Under the General Equivalence Mappings, Dilation of Left Subclavian Artery with Drug-eluting Intraluminal Device, Percutaneous Approach crosswalks to ICD-9-PCS 39.50, 40, and 55. The mapping is approximate, so confirm it fits the documentation.