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ICD-10-PCS 2027 procedure code

02734ZZDilation of Coronary Artery, Four or More Arteries, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Dilation of 4+ Cor Art, Perc Endo 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 02734ZZ

02734ZZ is the ICD-10-PCS code for a dilation procedure on the coronary artery, four or more arteries using a percutaneous endoscopic approach. 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 four or more vessels and percutaneous transluminal coronary angioplasty [PTCA], the ICD-9-CM procedure titles it maps to (00.43 and 00.66).

For a different body part, codes include 02704ZZ (coronary artery, one artery), 02714ZZ (coronary artery, two arteries), 02724ZZ (coronary artery, three arteries), 027F4ZZ (aortic valve), 027G4ZZ (mitral valve), 027H4ZZ (pulmonary valve) and 11 more.

The same procedure with a different approach is coded 02730ZZ (open) and 02733ZZ (percutaneous).

With a different device, use 027344Z (intraluminal device, drug-eluting), 027345Z (intraluminal device, drug-eluting, two), 027346Z (intraluminal device, drug-eluting, three), 027347Z (intraluminal device, drug-eluting, four or more), 02734DZ (intraluminal device), 02734EZ (intraluminal device, two) and 3 more.

It is an operating-room procedure in the MS-DRG logic for DRG 231 (Coronary Bypass with PTCA with MCC), DRG 232 (Coronary Bypass with PTCA without MCC), DRG 250 (Percutaneous Cardiovascular Procedures without Intraluminal Device with MCC), DRG 251 (Percutaneous Cardiovascular Procedures without Intraluminal Device without MCC), DRG 321 (Percutaneous Cardiovascular Procedures with Intraluminal Device with MCC or 4+ Arteries/Intraluminal Devices) and DRG 322 (Percutaneous Cardiovascular Procedures with Intraluminal Device without MCC), under the surgical categories “”, “Percutaneous Cardiovascular Procedures without Intraluminal Device” and “Percutaneous cardiovascular procedures with intraluminal device”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

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
3Coronary Artery, Four or More Arteries
5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
ZNo Device
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 →
  • 00.43Procedure on four or more vesselsapproximate, combination
  • 00.66Percutaneous transluminal coronary angioplasty [PTCA]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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2017 (effective 10/1/2016): Title revised — was “Dilation of Coronary Artery, Four or More Sites, Percutaneous Endoscopic Approach”

Common questions about 02734ZZ

Is 02734ZZ a valid ICD-10-PCS code for 2027?

Yes. 02734ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02734ZZ an O.R. procedure?

Yes. 02734ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 02734ZZ group to?

Depending on the principal diagnosis, 02734ZZ can group to MS-DRG 231, MS-DRG 232, MS-DRG 250, MS-DRG 251, MS-DRG 321 and MS-DRG 322.

What is the ICD-9 procedure code for 02734ZZ?

The CMS GEMs map 02734ZZ to ICD-9-CM 00.43 (Procedure on four or more vessels) and 00.66 (Percutaneous transluminal coronary angioplasty [PTCA]).