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ICD-10-PCS 2027 procedure code

03700EZDilation of Right Internal Mammary Artery with Two Intraluminal Devices, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Dilate of R Int Mamm Art with 2 Intralum Dev, 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 03700EZ

03700EZ is the ICD-10-PCS code for a dilation procedure on the right internal mammary artery using an open approach with intraluminal device, two. 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 two vascular stents, angioplasty of other non-coronary vessel(s) and 1 more, the ICD-9-CM procedure titles it maps to (00.40, 00.46, 39.50 and 1 more).

For a different body part, codes include 03710EZ (left internal mammary artery), 03720EZ (innominate artery), 03730EZ (right subclavian artery), 03740EZ (left subclavian artery), 03750EZ (right axillary artery), 03760EZ (left axillary artery) and 23 more.

The same procedure with a different approach is coded 03703EZ (percutaneous) and 03704EZ (percutaneous endoscopic).

With a different device, use 037004Z (intraluminal device, drug-eluting), 037005Z (intraluminal device, drug-eluting, two), 037006Z (intraluminal device, drug-eluting, three), 037007Z (intraluminal device, drug-eluting, four or more), 03700DZ (intraluminal device), 03700FZ (intraluminal device, three) and 2 more.

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
3Upper Arteries
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
0Internal Mammary Artery, Right
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
EIntraluminal Device, Two
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
  • 00.46Insertion of two vascular stentsapproximate, combination
  • 39.50Angioplasty of other non-coronary vessel(s)approximate, combination
  • 39.90Insertion of non-drug-eluting peripheral (non-coronary) vessel stent(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 03700EZ

Is 03700EZ a valid ICD-10-PCS code for 2027?

Yes. 03700EZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 03700EZ an O.R. procedure?

Yes. 03700EZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 03700EZ group to?

Depending on the principal diagnosis, 03700EZ can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.

What is the ICD-9 procedure code for 03700EZ?

The CMS GEMs map 03700EZ to ICD-9-CM 00.40 (Procedure on single vessel), 00.46 (Insertion of two vascular stents), 39.50 (Angioplasty of other non-coronary vessel(s)) and 1 more.