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ICD-10-PCS 2027 procedure code

0CT20ZZResection of Hard Palate, 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 0CT20ZZ

0CT20ZZ is the ICD-10-PCS code for a resection procedure on the hard palate using an open approach. In ICD-10-PCS, resection means cutting out or off, without replacement, all of a body part.

In plain terms, this corresponds to Wide excision or destruction of lesion or tissue of bony palate, the ICD-9-CM procedure title it maps to (27.32).

For a different body part, codes include 0CT00ZZ (upper lip), 0CT10ZZ (lower lip), 0CT30ZZ (soft palate), 0CT70ZZ (tongue), 0CT80ZZ (right parotid gland), 0CT90ZZ (left parotid gland) and 15 more.

The same procedure with a different approach is coded 0CT2XZZ (external).

It is an operating-room procedure in the MS-DRG logic for DRG 140 (Major Head and Neck Procedures with MCC), DRG 141 (Major Head and Neck Procedures with CC) and DRG 142 (Major Head and Neck Procedures without CC/MCC), under the surgical category “Major Head and Neck 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
TResection

Cutting out or off, without replacement, all of a body part

Includes: Total nephrectomy, total lobectomy of lung

4. Body Part
2Hard Palate
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

Different approach

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 →
  • 27.32Wide excision or destruction of lesion or tissue of bony palateapproximate

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 0CT20ZZ

Is 0CT20ZZ a valid ICD-10-PCS code for 2027?

Yes. 0CT20ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0CT20ZZ an O.R. procedure?

Yes. 0CT20ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0CT20ZZ group to?

Depending on the principal diagnosis, 0CT20ZZ can group to MS-DRG 140, MS-DRG 141 and MS-DRG 142.

What is the ICD-9 procedure code for 0CT20ZZ?

The CMS GEMs map 0CT20ZZ to ICD-9-CM 27.32 (Wide excision or destruction of lesion or tissue of bony palate).