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ICD-10-PCS 2027 procedure code

0CU407ZSupplement Buccal Mucosa with Autologous Tissue Substitute, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Supplement Buccal Mucosa with Autol Sub, Open Approach

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 0CU407Z

0CU407Z is the ICD-10-PCS code for a supplement procedure on the buccal mucosa using an open approach with autologous tissue substitute. In ICD-10-PCS, supplement means putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part.

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 0CU007Z (upper lip), 0CU107Z (lower lip), 0CU207Z (hard palate), 0CU307Z (soft palate), 0CU507Z (upper gingiva), 0CU607Z (lower gingiva) and 7 more.

The same procedure with a different approach is coded 0CU437Z (percutaneous) and 0CU4X7Z (external).

With a different device, use 0CU40JZ (synthetic substitute) and 0CU40KZ (nonautologous tissue substitute).

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
USupplement

Putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part

The biological material is non-living, or is living and from the same individual. The body part may have been previously replaced, and the Supplement procedure is performed to physically reinforce and/or augment the function of the replaced body part

Includes: Herniorrhaphy using mesh, mitral valve ring annuloplasty, put a new acetabular liner in a previous hip replacement

4. Body Part
4Buccal Mucosa

Includes: Buccal gland; Molar gland; Palatine gland

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
7Autologous Tissue Substitute

Includes: Autograft; Cultured epidermal cell autograft; Epicel(R) cultured epidermal autograft

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.

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 0CU407Z

Is 0CU407Z a valid ICD-10-PCS code for 2027?

Yes. 0CU407Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0CU407Z an O.R. procedure?

Yes. 0CU407Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0CU407Z group to?

Depending on the principal diagnosis, 0CU407Z 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 0CU407Z?

The CMS GEMs map 0CU407Z to ICD-9-CM 27.59 (Other plastic repair of mouth).