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ICD-10-PCS 2027 procedure code

0U9MXZXDrainage of Vulva, External Approach, Diagnostic

✓ 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 0U9MXZX

0U9MXZX is the ICD-10-PCS code for a drainage procedure on the vulva using an external approach (qualifier: diagnostic). In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to biopsy of vulva, the ICD-9-CM procedure title it maps to (71.11).

For a different body part, codes include 0U9GXZX (vagina), 0U9JXZX (clitoris), 0U9KXZX (hymen) and 0U9LXZX (vestibular gland).

The same procedure with a different approach is coded 0U9M0ZX (open).

It is an operating-room procedure in the MS-DRG logic for DRG 579 (Other Skin, Subcutaneous Tissue and Breast Procedures with MCC), DRG 580 (Other Skin, Subcutaneous Tissue and Breast Procedures with CC), DRG 581 (Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC), DRG 746 (Vagina, Cervix and Vulva Procedures with CC/MCC) and DRG 747 (Vagina, Cervix and Vulva Procedures without CC/MCC), under the surgical categories “Other Skin, Subcutaneous Tissue and Breast Procedures” and “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
9Drainage

Taking or letting out fluids and/or gases from a body part

The qualifier DIAGNOSTIC is used to identify drainage procedures that are biopsies

Includes: Thoracentesis, incision and drainage

4. Body Part
MVulva

Includes: Labia majora; Labia minora

5. Approach
XExternal

Procedures performed directly on the skin or mucous membrane and procedures performed indirectly by the application of external force through the skin or mucous membrane

6. Device
ZNo Device
7. Qualifier
XDiagnostic

Other versions of this procedure

Different approach

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

ICD-9-CM equivalent

Converter →
  • 71.11Biopsy of vulvaapproximate

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 0U9MXZX

Is 0U9MXZX a valid ICD-10-PCS code for 2027?

Yes. 0U9MXZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0U9MXZX an O.R. procedure?

Yes. 0U9MXZX is an O.R. procedure in MS-DRG v44.0.

What DRG does 0U9MXZX group to?

Depending on the principal diagnosis, 0U9MXZX can group to MS-DRG 579, MS-DRG 580, MS-DRG 581, MS-DRG 746 and MS-DRG 747.

What is the ICD-9 procedure code for 0U9MXZX?

The CMS GEMs map 0U9MXZX to ICD-9-CM 71.11 (Biopsy of vulva).