X27X39BDilation of Thoracic Aorta, Ascending/Arch with Expandable Intraluminal Device, Percutaneous Approach, New Technology Group 11

New Technology›Cardiovascular System›Dilation
  • Billable / Specific Code
ICD-10-PCS X27X39B
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

X27X39B is a billable ICD-10-PCS procedure code for Dilation of Thoracic Aorta, Ascending/Arch with Expandable Intraluminal Device, Percutaneous Approach, New Technology Group 11. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRGs 252, 253, 254. The root operation Dilation involves expanding an orifice or the lumen of a tubular body part. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Angioplasty and related vessel procedures (endovascular; excluding carotid).

Code Identity

ICD-10-PCS Code
X27X39B
Billable Status
Yes — Valid for Submission
Code Describes
Dilation of Thoracic Aorta, Ascending/Arch with Expandable Intraluminal Device, Percutaneous Approach, New Technology Group 11
Short Description
Dilate Thor Aorta Asc w Expndbl Int Dev, Perc, New Tech 11
Parent Code
X27

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
1SectionXNew Technology
2Body System2Cardiovascular System
3Operation7Dilation
4BodyPartXThoracic Aorta, Ascending/Arch
5Approach3Percutaneous
6Device/Substance/Technology9Intraluminal Device, Expandable
7QualifierBNew Technology Group 11

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

Dilation, Aorta, Thoracic, Ascending/Arch, Expandable Intraluminal Device
Direct entry for this code
New Technology, Dilation, Aorta, Ascending/Arch, Expandable Intraluminal Device
Direct entry for this code
Aortic arch
Anatomy or device term that leads here
Aortic root
Anatomy or device term that leads here
Aortic isthmus
Anatomy or device term that leads here
Ascending aorta
Anatomy or device term that leads here
Juxtaductal aorta
Anatomy or device term that leads here

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

CAR008
Angioplasty and related vessel procedures (endovascular; excluding carotid)
Clinical domain: Cardiovascular Procedures

Code History

Replaces previously assigned code(s):
  • 027X3DZ — Dilation of Thor Aorta Asc with Intralum Dev, Perc Approach

Questions About X27X39B

Is X27X39B a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Dilation of Thoracic Aorta, Ascending/Arch with Expandable Intraluminal Device, Percutaneous Approach, New Technology Group 11 on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in X27X39B mean?

The code breaks down character by character: the 1st character X is the Section (New Technology); the 2nd character 2 is the Body System (Cardiovascular System); the 3rd character 7 is the Operation (Dilation); the 4th character X is the BodyPart (Thoracic Aorta, Ascending/Arch); the 5th character 3 is the Approach (Percutaneous); the 6th character 9 is the Device/Substance/Technology (Intraluminal Device, Expandable); the 7th character B is the Qualifier (New Technology Group 11).

What MS-DRG does X27X39B group to?

On an inpatient stay, Dilation of Thoracic Aorta, Ascending/Arch with Expandable Intraluminal Device, Percutaneous Approach, New Technology Group 11 maps to MS-DRGs 252, 253, 254, with relative weights from 1.7961 to 3.4822. The MS-DRG sets the fixed Medicare payment for the stay.