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ICD-10-PCS 2027 procedure code

0HHT0NZInsertion of Tissue Expander into Right Breast, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Insertion of Tissue Expander into R Breast, 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 0HHT0NZ

0HHT0NZ is the ICD-10-PCS code for a insertion procedure on the right breast using an open approach with tissue expander. In ICD-10-PCS, insertion means putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part.

In plain terms, this corresponds to insertion of breast tissue expander, the ICD-9-CM procedure title it maps to (85.95).

For a different body part, codes include 0HHU0NZ (left breast), 0HHV0NZ (bilateral breast), 0HHW0NZ (right nipple) and 0HHX0NZ (left nipple).

The same procedure with a different approach is coded 0HHT3NZ (percutaneous), 0HHT7NZ (via natural or artificial opening) and 0HHT8NZ (via natural or artificial opening endoscopic).

With a different device, use 0HHT01Z (radioactive element) and 0HHT0YZ (other device).

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), DRG 585 (Breast Biopsy, Local Excision and Other Breast 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 “Breast Biopsy, Local Excision and Other Breast 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
HSkin and Breast
3. Operation
HInsertion

Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part

Includes: Insertion of radioactive implant, insertion of central venous catheter

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
NTissue Expander
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 →
  • 85.95Insertion of breast tissue expanderapproximate

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 0HHT0NZ

Is 0HHT0NZ a valid ICD-10-PCS code for 2027?

Yes. 0HHT0NZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0HHT0NZ an O.R. procedure?

Yes. 0HHT0NZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0HHT0NZ group to?

Depending on the principal diagnosis, 0HHT0NZ can group to MS-DRG 584, MS-DRG 585, MS-DRG 907, MS-DRG 908, MS-DRG 909 and MS-DRG 957.

What is the ICD-9 procedure code for 0HHT0NZ?

The CMS GEMs map 0HHT0NZ to ICD-9-CM 85.95 (Insertion of breast tissue expander).