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ICD-10-PCS 2027 procedure code

09WJ40ZRevision of Drainage Device in Left Ear, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Drainage Device in Left Ear, Perc Endo Approach

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 09WJ40Z

09WJ40Z is the ICD-10-PCS code for a revision procedure on the left ear using a percutaneous endoscopic approach with drainage device. In ICD-10-PCS, revision means correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device.

In plain terms, this corresponds to other operations on middle and inner ear, the ICD-9-CM procedure title it maps to (20.99).

For a different body part, codes include 09WH40Z (right ear), 09WK40Z (nasal mucosa and soft tissue) and 09WY40Z (sinus).

The same procedure with a different approach is coded 09WJ00Z (open), 09WJ30Z (percutaneous), 09WJ70Z (via natural or artificial opening), 09WJ80Z (via natural or artificial opening endoscopic) and 09WJX0Z (external).

With a different device, use 09WJ47Z (autologous tissue substitute), 09WJ4DZ (intraluminal device), 09WJ4JZ (synthetic substitute), 09WJ4KZ (nonautologous tissue substitute) and 09WJ4YZ (other device).

It is an operating-room procedure in the MS-DRG logic for DRG 143 (Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC), DRG 144 (Other Ear, Nose, Mouth and Throat O.R. Procedures with CC) and DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), under the surgical category “Other Ear, Nose, Mouth and Throat O.R. 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
9Ear, Nose, Sinus
3. Operation
WRevision

Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device

Revision can include correcting a malfunctioning or displaced device by taking out or putting in components of the device such as a screw or pin

Includes: Adjustment of position of pacemaker lead, recementing of hip prosthesis

4. Body Part
JEar, Left
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
0Drainage Device

Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube

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 →
  • 20.99Other operations on middle and inner earapproximate

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 09WJ40Z

Is 09WJ40Z a valid ICD-10-PCS code for 2027?

Yes. 09WJ40Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09WJ40Z an O.R. procedure?

Yes. 09WJ40Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 09WJ40Z group to?

Depending on the principal diagnosis, 09WJ40Z can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 09WJ40Z?

The CMS GEMs map 09WJ40Z to ICD-9-CM 20.99 (Other operations on middle and inner ear).