ICD-10-PCS 2027 procedure code
03703Z1Dilation of Right Internal Mammary Artery using Drug-Coated Balloon, Percutaneous Approach
Short description: Dilation of R Int Mamm Art using Drug Blln, Perc Approach
Code last changed in FY2019 (effective October 1, 2018). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 03703Z1
03703Z1 is the ICD-10-PCS code for a dilation procedure on the right internal mammary artery using a percutaneous approach (qualifier: drug-coated balloon). In ICD-10-PCS, dilation means expanding an orifice or the lumen of a tubular body part.
For a different body part, codes include 03713Z1 (left internal mammary artery), 03723Z1 (innominate artery), 03733Z1 (right subclavian artery), 03743Z1 (left subclavian artery), 03753Z1 (right axillary artery), 03763Z1 (left axillary artery) and 6 more.
The same procedure with a different approach is coded 03700Z1 (open) and 03704Z1 (percutaneous endoscopic).
With a different device, use 03703D1 (intraluminal 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 FY2019, effective October 1, 2018.
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
- 3Percutaneous
Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of the procedure
- 6. Device
- ZNo Device
- 7. Qualifier
- 1Drug-Coated Balloon
Other versions of this procedure
Different body part
- 03713Z1Internal Mammary Artery, Left
- 03723Z1Innominate Artery
- 03733Z1Subclavian Artery, Right
- 03743Z1Subclavian Artery, Left
- 03753Z1Axillary Artery, Right
- 03763Z1Axillary Artery, Left
- 03773Z1Brachial Artery, Right
- 03783Z1Brachial Artery, Left
- 03793Z1Ulnar Artery, Right
- 037A3Z1Ulnar Artery, Left
- 037B3Z1Radial Artery, Right
- 037C3Z1Radial Artery, Left
Different approach
Different device
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 · Other Vascular Procedures
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2019 (effective 10/1/2018): Added
- No changes since FY2019.
Common questions about 03703Z1
Is 03703Z1 a valid ICD-10-PCS code for 2027?
- Yes. 03703Z1 is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 03703Z1 an O.R. procedure?
- Yes. 03703Z1 is an O.R. procedure in MS-DRG v44.0.
What DRG does 03703Z1 group to?
- Depending on the principal diagnosis, 03703Z1 can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.