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ICD-10-PCS 2027 procedure code

0CQ43ZZRepair Buccal Mucosa, Percutaneous 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 0CQ43ZZ

0CQ43ZZ is the ICD-10-PCS code for a repair procedure on the buccal mucosa using a percutaneous approach. In ICD-10-PCS, repair means restoring, to the extent possible, a body part to its normal anatomic structure and function.

In plain terms, this corresponds to other plastic repair of mouth, the ICD-9-CM procedure title it maps to (27.59).

For a different body part, codes include 0CQ03ZZ (upper lip), 0CQ13ZZ (lower lip), 0CQ23ZZ (hard palate), 0CQ33ZZ (soft palate), 0CQ53ZZ (upper gingiva), 0CQ63ZZ (lower gingiva) and 18 more.

The same procedure with a different approach is coded 0CQ40ZZ (open) and 0CQ4XZZ (external).

It is an operating-room procedure in the MS-DRG logic for DRG 137 (Mouth Procedures with CC/MCC), DRG 138 (Mouth Procedures without CC/MCC), DRG 579 (Other Skin, Subcutaneous Tissue and Breast Procedures with MCC), DRG 580 (Other Skin, Subcutaneous Tissue and Breast Procedures with CC), DRG 581 (Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC) and DRG 907 (Other O.R. Procedures for Injuries with MCC), under the surgical categories “Mouth Procedures”, “Other Skin, Subcutaneous Tissue and Breast 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
CMouth and Throat
3. Operation
QRepair

Restoring, to the extent possible, a body part to its normal anatomic structure and function

Used only when the method to accomplish the repair is not one of the other root operations

Includes: Colostomy takedown, suture of laceration

4. Body Part
4Buccal Mucosa

Includes: Buccal gland; Molar gland; Palatine gland

5. Approach
3Percutaneous

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach 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.

MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat · Mouth Procedures

ICD-9-CM equivalent

Converter →
  • 27.59Other plastic repair of mouthapproximate

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 0CQ43ZZ

Is 0CQ43ZZ a valid ICD-10-PCS code for 2027?

Yes. 0CQ43ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0CQ43ZZ an O.R. procedure?

Yes. 0CQ43ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0CQ43ZZ group to?

Depending on the principal diagnosis, 0CQ43ZZ can group to MS-DRG 137, MS-DRG 138, MS-DRG 579, MS-DRG 580, MS-DRG 581 and MS-DRG 907.

What is the ICD-9 procedure code for 0CQ43ZZ?

The CMS GEMs map 0CQ43ZZ to ICD-9-CM 27.59 (Other plastic repair of mouth).