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ICD-10-PCS 2027 procedure code

0HNXXZZRelease Left Nipple, External 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 0HNXXZZ

0HNXXZZ is the ICD-10-PCS code for a release procedure on the left nipple using an external approach. In ICD-10-PCS, release means freeing a body part from an abnormal physical constraint by cutting or by the use of force.

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 0HN0XZZ (skin, scalp), 0HN1XZZ (skin, face), 0HN2XZZ (skin, right ear), 0HN3XZZ (skin, left ear), 0HN4XZZ (skin, neck), 0HN5XZZ (skin, chest) and 20 more.

The same procedure with a different approach is coded 0HNX0ZZ (open), 0HNX3ZZ (percutaneous), 0HNX7ZZ (via natural or artificial opening) and 0HNX8ZZ (via natural or artificial opening endoscopic).

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
NRelease

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

Some of the restraining tissue may be taken out but none of the body part is taken out

Includes: Adhesiolysis, carpal tunnel release

4. Body Part
XNipple, Left

Includes: Areola

5. Approach
XExternal

Procedures performed directly on the skin or mucous membrane and procedures performed indirectly by the application of external force through the skin or mucous membrane

6. Device
ZNo Device
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 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 0HNXXZZ

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

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

Is 0HNXXZZ an O.R. procedure?

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

What DRG does 0HNXXZZ group to?

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

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

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