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ICD-10-PCS 2027 procedure code

0Y9B0ZXDrainage of Left Lower Extremity, Open Approach, Diagnostic

✓ Valid for 2027

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 0Y9B0ZX

0Y9B0ZX is the ICD-10-PCS code for a drainage procedure on the left lower extremity using an open 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 other diagnostic procedures on skin and subcutaneous tissue, the ICD-9-CM procedure title it maps to (86.19).

For a different body part, codes include 0Y900ZX (right buttock), 0Y910ZX (left buttock), 0Y950ZX (right inguinal region), 0Y960ZX (left inguinal region), 0Y970ZX (right femoral region), 0Y980ZX (left femoral region) and 11 more.

The same procedure with a different approach is coded 0Y9B3ZX (percutaneous) and 0Y9B4ZX (percutaneous endoscopic).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

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
YAnatomical Regions, Lower Extremities
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
BLower Extremity, Left
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
XDiagnostic

Other versions of this procedure

Different qualifier

ICD-9-CM equivalent

Converter →
  • 86.19Other diagnostic procedures on skin and subcutaneous tissueapproximate

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 0Y9B0ZX

Is 0Y9B0ZX a valid ICD-10-PCS code for 2027?

Yes. 0Y9B0ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0Y9B0ZX?

The CMS GEMs map 0Y9B0ZX to ICD-9-CM 86.19 (Other diagnostic procedures on skin and subcutaneous tissue).