ICD-10-PCS 2027 procedure code
02734ZZDilation of Coronary Artery, Four or More Arteries, Percutaneous Endoscopic Approach
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
Different body part
- 02704ZZCoronary Artery, One Artery
- 02714ZZCoronary Artery, Two Arteries
- 02724ZZCoronary Artery, Three Arteries
- 027F4ZZAortic Valve
- 027G4ZZMitral Valve
- 027H4ZZPulmonary Valve
- 027J4ZZTricuspid Valve
- 027K4ZZVentricle, Right
- 027L4ZZVentricle, Left
- 027P4ZZPulmonary Trunk
- 027Q4ZZPulmonary Artery, Right
- 027R4ZZPulmonary Artery, Left
Different approach
Different device
- 027344ZIntraluminal Device, Drug-eluting
- 027345ZIntraluminal Device, Drug-eluting, Two
- 027346ZIntraluminal Device, Drug-eluting, Three
- 027347ZIntraluminal Device, Drug-eluting, Four or More
- 02734DZIntraluminal Device
- 02734EZIntraluminal Device, Two
- 02734FZIntraluminal Device, Three
- 02734GZIntraluminal Device, Four or More
- 02734TZIntraluminal Device, Radioactive
Different qualifier
MS-DRG v44.0 grouping
All DRGs →Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.
MDC 05 · Diseases and Disorders of the Circulatory System
MDC 05 · Diseases and Disorders of the Circulatory System · Percutaneous Cardiovascular Procedures without Intraluminal Device
MDC 05 · Diseases and Disorders of the Circulatory System · Percutaneous cardiovascular procedures with intraluminal device
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
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 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]).