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ICD-10-PCS 2027 procedure code

0CB43ZZExcision of 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 0CB43ZZ

0CB43ZZ is the ICD-10-PCS code for a excision procedure on the buccal mucosa using a percutaneous approach. In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.

In plain terms, this corresponds to other excision of mouth, the ICD-9-CM procedure title it maps to (27.49).

For a different body part, codes include 0CB03ZZ (upper lip), 0CB13ZZ (lower lip), 0CB23ZZ (hard palate), 0CB33ZZ (soft palate), 0CB53ZZ (upper gingiva), 0CB63ZZ (lower gingiva) and 18 more.

The same procedure with a different approach is coded 0CB40ZZ (open) and 0CB4XZZ (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 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC), DRG 909 (Other O.R. Procedures for Injuries without CC/MCC) and DRG 957 (Other O.R. Procedures for Multiple Significant Trauma with MCC), under the surgical categories “Mouth Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

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
BExcision

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

The qualifier DIAGNOSTIC is used to identify excision procedures that are biopsies

Includes: Partial nephrectomy, liver biopsy

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

Different qualifier

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 →
  • 27.49Other excision 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 0CB43ZZ

Is 0CB43ZZ a valid ICD-10-PCS code for 2027?

Yes. 0CB43ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0CB43ZZ an O.R. procedure?

Yes. 0CB43ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0CB43ZZ group to?

Depending on the principal diagnosis, 0CB43ZZ can group to MS-DRG 137, MS-DRG 138, MS-DRG 907, MS-DRG 908, MS-DRG 909 and MS-DRG 957.

What is the ICD-9 procedure code for 0CB43ZZ?

The CMS GEMs map 0CB43ZZ to ICD-9-CM 27.49 (Other excision of mouth).