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ICD-10-PCS 2027 procedure code

05704ZZDilation of Azygos Vein, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 05704ZZ

05704ZZ is the ICD-10-PCS code for a dilation procedure on the azygos vein 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 single vessel and angioplasty of other non-coronary vessel(s), the ICD-9-CM procedure titles it maps to (00.40 and 39.50).

For a different body part, codes include 05714ZZ (hemiazygos vein), 05734ZZ (right innominate vein), 05744ZZ (left innominate vein), 05754ZZ (right subclavian vein), 05764ZZ (left subclavian vein), 05774ZZ (right axillary vein) and 19 more.

The same procedure with a different approach is coded 05700ZZ (open) and 05703ZZ (percutaneous).

With a different device, use 05704DZ (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 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
5Upper Veins
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
0Azygos Vein

Includes: Right ascending lumbar vein; Right subcostal vein

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 →
  • 00.40Procedure on single vesselapproximate, 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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 05704ZZ

Is 05704ZZ a valid ICD-10-PCS code for 2027?

Yes. 05704ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 05704ZZ an O.R. procedure?

Yes. 05704ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 05704ZZ group to?

Depending on the principal diagnosis, 05704ZZ can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.

What is the ICD-9 procedure code for 05704ZZ?

The CMS GEMs map 05704ZZ to ICD-9-CM 00.40 (Procedure on single vessel) and 39.50 (Angioplasty of other non-coronary vessel(s)).