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ICD-10-PCS 2027 procedure code

0CWS8YZRevision of Other Device in Larynx, Via Natural or Artificial Opening Endoscopic

✓ Valid for 2027

Short description: Revision of Other Device in Larynx, Endo

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0CWS8YZ

0CWS8YZ is the ICD-10-PCS code for a revision procedure on the larynx using a via natural or artificial opening endoscopic approach with other 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 miscellaneous procedures, the ICD-9-CM procedure title it maps to (99.99).

For a different body part, codes include 0CWA8YZ (salivary gland) and 0CWY8YZ (mouth and throat).

The same procedure with a different approach is coded 0CWS0YZ (open), 0CWS3YZ (percutaneous) and 0CWS7YZ (via natural or artificial opening).

With a different device, use 0CWS80Z (drainage device), 0CWS87Z (autologous tissue substitute), 0CWS8DZ (intraluminal device), 0CWS8JZ (synthetic substitute) and 0CWS8KZ (nonautologous tissue substitute).

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

It was added in FY2018, effective October 1, 2017.

What each character means

1. Section
0Medical and Surgical
2. Body System
CMouth and Throat
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
SLarynx

Includes: Aryepiglottic fold; Arytenoid cartilage; Corniculate cartilage; Cricoid cartilage; Cricothyroid membrane; Cuneiform cartilage; False vocal cord; Glottis; Rima glottidis; Thyroid cartilage; Ventricular fold

5. Approach
8Via Natural or Artificial Opening Endoscopic

Entry of instrumentation through a natural or artificial external opening to reach and visualize the site of the procedure

6. Device
YOther Device

Includes: Alfapump(R) system

7. Qualifier
ZNo Qualifier

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 99.99Other miscellaneous proceduresapproximate

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
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about 0CWS8YZ

Is 0CWS8YZ a valid ICD-10-PCS code for 2027?

Yes. 0CWS8YZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0CWS8YZ?

The CMS GEMs map 0CWS8YZ to ICD-9-CM 99.99 (Other miscellaneous procedures).