Skip to content
Dx

ICD-10-PCS 2027 procedure code

0UNL0ZZRelease Vestibular Gland, Open Approach

✓ Valid for 2027O.R. procedureFemale only

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 0UNL0ZZ

0UNL0ZZ is the ICD-10-PCS code for a release procedure on the vestibular gland using an open approach. In ICD-10-PCS, release means freeing a body part from an abnormal physical constraint by cutting or by the use of force.

In plain terms, this corresponds to other operations on Bartholin's gland, the ICD-9-CM procedure title it maps to (71.29).

For a different body part, codes include 0UN00ZZ (right ovary), 0UN10ZZ (left ovary), 0UN20ZZ (bilateral ovaries), 0UN40ZZ (uterine supporting structure), 0UN50ZZ (right fallopian tube), 0UN60ZZ (left fallopian tube) and 8 more.

The same procedure with a different approach is coded 0UNLXZZ (external).

It is an operating-room procedure in the MS-DRG logic for DRG 746 (Vagina, Cervix and Vulva Procedures with CC/MCC) and DRG 747 (Vagina, Cervix and Vulva Procedures without CC/MCC), under the surgical category “Vagina, Cervix and Vulva 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
UFemale Reproductive System
3. Operation
NRelease

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

Some of the restraining tissue may be taken out but none of the body part is taken out

Includes: Adhesiolysis, carpal tunnel release

4. Body Part
LVestibular Gland

Includes: Bartholin's (greater vestibular) gland; Greater vestibular (Bartholin's) gland; Paraurethral (Skene's) gland; Skene's (paraurethral) gland

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
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different approach

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

MDC 13 · Diseases and Disorders of the Female Reproductive System · Vagina, Cervix and Vulva Procedures

ICD-9-CM equivalent

Converter →
  • 71.29Other operations on Bartholin's glandapproximate

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 0UNL0ZZ

Is 0UNL0ZZ a valid ICD-10-PCS code for 2027?

Yes. 0UNL0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0UNL0ZZ an O.R. procedure?

Yes. 0UNL0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0UNL0ZZ group to?

Depending on the principal diagnosis, 0UNL0ZZ can group to MS-DRG 746 and MS-DRG 747.

What is the ICD-9 procedure code for 0UNL0ZZ?

The CMS GEMs map 0UNL0ZZ to ICD-9-CM 71.29 (Other operations on Bartholin's gland).