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ICD-10-PCS 2027 procedure code

09WH4KZRevision of Nonautologous Tissue Substitute in Right Ear, Percutaneous Endoscopic Approach

✓ Valid for 2027

Short description: Revision of Nonaut Sub in R 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 09WH4KZ

09WH4KZ is the ICD-10-PCS code for a revision procedure on the right ear using a percutaneous endoscopic approach with nonautologous tissue substitute. 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 incision of external ear, the ICD-9-CM procedure title it maps to (18.09).

For a different body part, codes include 09WJ4KZ (left ear) and 09WK4KZ (nasal mucosa and soft tissue).

The same procedure with a different approach is coded 09WH0KZ (open), 09WH3KZ (percutaneous), 09WH7KZ (via natural or artificial opening), 09WH8KZ (via natural or artificial opening endoscopic) and 09WHXKZ (external).

With a different device, use 09WH40Z (drainage device), 09WH47Z (autologous tissue substitute), 09WH4DZ (intraluminal device), 09WH4JZ (synthetic substitute) and 09WH4YZ (other device).

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
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
HEar, Right
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
KNonautologous Tissue Substitute

Includes: Acellular Hydrated Dermis; Bone bank bone graft; Cook Biodesign(R) Fistula Plug(s); Cook Biodesign(R) Hernia Graft(s); Cook Biodesign(R) Layered Graft(s); Cook Zenapro(tm) Layered Graft(s); Fish skin; Kerecis(R) (GraftGuide) (MariGen) (SurgiBind) (SurgiClose); MIRODERM(tm) Biologic Wound Matrix; Piscine skin; Tissue bank graft

7. Qualifier
ZNo Qualifier

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 18.09Other incision of external 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 09WH4KZ

Is 09WH4KZ a valid ICD-10-PCS code for 2027?

Yes. 09WH4KZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 09WH4KZ?

The CMS GEMs map 09WH4KZ to ICD-9-CM 18.09 (Other incision of external ear).