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ICD-10-PCS 2027 procedure code

0CYS0Z1Transplantation of Larynx, Syngeneic, Open Approach

✓ Valid for 2027O.R. procedure

Code last changed in FY2026 (effective October 1, 2025). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0CYS0Z1

0CYS0Z1 is the ICD-10-PCS code for a transplantation procedure on the larynx using an open approach (qualifier: syngeneic). In ICD-10-PCS, transplantation means putting in or on all or a portion of a living body part taken from another individual or animal to physically take the place and/or function of all or a portion of a similar body part.

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 166 (Other Respiratory System O.R. Procedures with MCC), DRG 167 (Other Respiratory System O.R. Procedures with CC) and DRG 168 (Other Respiratory System O.R. Procedures without CC/MCC), under the surgical categories “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other Respiratory System O.R. Procedures”, “Other O.R. Procedures for Injuries” and 1 more.

It was added in FY2026, effective October 1, 2025.

What each character means

1. Section
0Medical and Surgical
2. Body System
CMouth and Throat
3. Operation
YTransplantation

Putting in or on all or a portion of a living body part taken from another individual or animal to physically take the place and/or function of all or a portion of a similar body part

The native body part may or may not be taken out, and the transplanted body part may take over all or a portion of its function

Includes: Kidney transplant, heart transplant

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
ZNo Device
7. Qualifier
1Syngeneic

Other versions of this procedure

Different qualifier

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

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
  • FY2026 (effective 10/1/2025): Added
  • No changes since FY2026.

Common questions about 0CYS0Z1

Is 0CYS0Z1 a valid ICD-10-PCS code for 2027?

Yes. 0CYS0Z1 is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0CYS0Z1 an O.R. procedure?

Yes. 0CYS0Z1 is an O.R. procedure in MS-DRG v44.0.

What DRG does 0CYS0Z1 group to?

Depending on the principal diagnosis, 0CYS0Z1 can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 166, MS-DRG 167 and MS-DRG 168.