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ICD-10-PCS 2027 procedure code

0H0T0ZZAlteration of Right Breast, 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 0H0T0ZZ

0H0T0ZZ is the ICD-10-PCS code for a alteration procedure on the right breast using an open approach. In ICD-10-PCS, alteration means modifying the anatomic structure of a body part without affecting the function of the body part.

In plain terms, this corresponds to other mammoplasty, the ICD-9-CM procedure title it maps to (85.89).

For a different body part, codes include 0H0U0ZZ (left breast) and 0H0V0ZZ (bilateral breast).

The same procedure with a different approach is coded 0H0T3ZZ (percutaneous).

With a different device, use 0H0T07Z (autologous tissue substitute), 0H0T0JZ (synthetic substitute) and 0H0T0KZ (nonautologous tissue substitute).

It is an operating-room procedure in the MS-DRG logic for DRG 584 (Breast Biopsy, Local Excision and Other Breast Procedures with CC/MCC) and DRG 585 (Breast Biopsy, Local Excision and Other Breast Procedures without CC/MCC), under the surgical category “Breast Biopsy, Local Excision and Other Breast 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
HSkin and Breast
3. Operation
0Alteration

Modifying the anatomic structure of a body part without affecting the function of the body part

Principal purpose is to improve appearance

Includes: Face lift, breast augmentation

4. Body Part
TBreast, Right
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.

MDC 09 · Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast · Breast Biopsy, Local Excision and Other Breast Procedures

ICD-9-CM equivalent

Converter →
  • 85.89Other mammoplastyapproximate

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 0H0T0ZZ

Is 0H0T0ZZ a valid ICD-10-PCS code for 2027?

Yes. 0H0T0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0H0T0ZZ an O.R. procedure?

Yes. 0H0T0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0H0T0ZZ group to?

Depending on the principal diagnosis, 0H0T0ZZ can group to MS-DRG 584 and MS-DRG 585.

What is the ICD-9 procedure code for 0H0T0ZZ?

The CMS GEMs map 0H0T0ZZ to ICD-9-CM 85.89 (Other mammoplasty).