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ICD-10-PCS 2027 procedure code

0CWS00ZRevision of Drainage Device in Larynx, Open Approach

✓ Valid for 2027O.R. procedure

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 0CWS00Z

0CWS00Z is the ICD-10-PCS code for a revision procedure on the larynx using an open 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 incision of larynx or trachea, the ICD-9-CM procedure title it maps to (31.3).

For a different body part, codes include 0CWA00Z (salivary gland) and 0CWY00Z (mouth and throat).

The same procedure with a different approach is coded 0CWS30Z (percutaneous), 0CWS70Z (via natural or artificial opening), 0CWS80Z (via natural or artificial opening endoscopic) and 0CWSX0Z (external).

With a different device, use 0CWS07Z (autologous tissue substitute), 0CWS0DZ (intraluminal device), 0CWS0JZ (synthetic substitute), 0CWS0KZ (nonautologous tissue substitute) and 0CWS0YZ (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
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
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose 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 →
  • 31.3Other incision of larynx or tracheaapproximate

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 0CWS00Z

Is 0CWS00Z a valid ICD-10-PCS code for 2027?

Yes. 0CWS00Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0CWS00Z an O.R. procedure?

Yes. 0CWS00Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0CWS00Z group to?

Depending on the principal diagnosis, 0CWS00Z can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 0CWS00Z?

The CMS GEMs map 0CWS00Z to ICD-9-CM 31.3 (Other incision of larynx or trachea).