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ICD-10-PCS 2027 procedure code

0W040ZZAlteration of Upper Jaw, 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 0W040ZZ

0W040ZZ is the ICD-10-PCS code for a alteration procedure on the upper jaw using an open approach. In ICD-10-PCS, alteration means modifying the anatomic structure of a body part without affecting the function of the body part.

In plain terms, this corresponds to reduction genioplasty, the ICD-9-CM procedure title it maps to (76.67).

For a different body part, codes include 0W000ZZ (head), 0W020ZZ (face), 0W050ZZ (lower jaw), 0W060ZZ (neck), 0W080ZZ (chest wall), 0W0F0ZZ (abdominal wall) and 4 more.

The same procedure with a different approach is coded 0W043ZZ (percutaneous) and 0W044ZZ (percutaneous endoscopic).

With a different device, use 0W0407Z (autologous tissue substitute), 0W040JZ (synthetic substitute) and 0W040KZ (nonautologous tissue substitute).

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), DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), DRG 515 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC), DRG 516 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with CC) and DRG 517 (Other Musculoskeletal System and Connective Tissue O.R. Procedures without CC/MCC), under the surgical categories “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other Musculoskeletal System and Connective Tissue O.R. Procedures”, “Other O.R. Procedures for Injuries” and 1 more.

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
WAnatomical Regions, General
3. Operation
0Alteration

Modifying the anatomic structure of a body part without affecting the function of the body part

Principal purpose is to improve appearance

Includes: Face lift, breast augmentation

4. Body Part
4Upper Jaw
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
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 →
  • 76.67Reduction genioplastyapproximate

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 0W040ZZ

Is 0W040ZZ a valid ICD-10-PCS code for 2027?

Yes. 0W040ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0W040ZZ an O.R. procedure?

Yes. 0W040ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0W040ZZ group to?

Depending on the principal diagnosis, 0W040ZZ can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 515, MS-DRG 516 and MS-DRG 517.

What is the ICD-9 procedure code for 0W040ZZ?

The CMS GEMs map 0W040ZZ to ICD-9-CM 76.67 (Reduction genioplasty).