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ICD-10-PCS 2027 procedure code

027X04ZDilation of Thoracic Aorta, Ascending/Arch with Drug-eluting Intraluminal Device, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Dilate of Thor Aorta Asc with Drug-elut Intra, Open Approach

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 027X04Z

027X04Z is the ICD-10-PCS code for a dilation procedure on the thoracic aorta, ascending/arch using an open approach with intraluminal device, drug-eluting. In ICD-10-PCS, dilation means expanding an orifice or the lumen of a tubular body part.

In plain terms, this corresponds to procedure on single vessel, insertion of one vascular stent, insertion of drug-eluting stent(s) of other peripheral vessel(s) and 1 more, the ICD-9-CM procedure titles it maps to (00.40, 00.45, 00.55 and 1 more).

For a different body part, codes include 027004Z (coronary artery, one artery), 027104Z (coronary artery, two arteries), 027204Z (coronary artery, three arteries), 027304Z (coronary artery, four or more arteries), 027F04Z (aortic valve), 027G04Z (mitral valve) and 11 more.

The same procedure with a different approach is coded 027X34Z (percutaneous) and 027X44Z (percutaneous endoscopic).

With a different device, use 027X0DZ (intraluminal device) and 027X0ZZ (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 252 (Other Vascular Procedures with MCC), DRG 253 (Other Vascular Procedures with CC) and DRG 254 (Other Vascular Procedures without CC/MCC), under the surgical category “Other Vascular Procedures”.

It was added in FY2017, effective October 1, 2016.

What each character means

1. Section
0Medical and Surgical
2. Body System
2Heart and Great Vessels
3. Operation
7Dilation

Expanding an orifice or the lumen of a tubular body part

The orifice can be a natural orifice or an artificially created orifice. Accomplished by stretching a tubular body part using intraluminal pressure or by cutting part of the orifice or wall of the tubular body part

Includes: Percutaneous transluminal angioplasty, internal urethrotomy

4. Body Part
XThoracic Aorta, Ascending/Arch

Includes: Aortic arch; Aortic isthmus; Aortic root; Ascending aorta; Juxtaductal aorta

5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
4Intraluminal Device, Drug-eluting
7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

ICD-9-CM equivalent

Converter →
  • 00.40Procedure on single vesselapproximate, combination
  • 00.45Insertion of one vascular stentapproximate, combination
  • 00.55Insertion of drug-eluting stent(s) of other peripheral vessel(s)approximate, combination
  • 39.50Angioplasty of other non-coronary vessel(s)approximate, combination

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2017 (effective 10/1/2016): Added
  • No changes since FY2017.

Common questions about 027X04Z

Is 027X04Z a valid ICD-10-PCS code for 2027?

Yes. 027X04Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 027X04Z an O.R. procedure?

Yes. 027X04Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 027X04Z group to?

Depending on the principal diagnosis, 027X04Z can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.

What is the ICD-9 procedure code for 027X04Z?

The CMS GEMs map 027X04Z to ICD-9-CM 00.40 (Procedure on single vessel), 00.45 (Insertion of one vascular stent), 00.55 (Insertion of drug-eluting stent(s) of other peripheral vessel(s)) and 1 more.