ICD-10-PCS 2027 procedure code
0HTY0ZZResection of Supernumerary 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 0HTY0ZZ
0HTY0ZZ is the ICD-10-PCS code for a resection procedure on the supernumerary breast using an open approach. In ICD-10-PCS, resection means cutting out or off, without replacement, all of a body part.
In plain terms, this corresponds to excision of ectopic breast tissue, the ICD-9-CM procedure title it maps to (85.24).
For a different body part, codes include 0HTT0ZZ (right breast), 0HTU0ZZ (left breast) and 0HTV0ZZ (bilateral breast).
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
- TResection
Cutting out or off, without replacement, all of a body part
Includes: Total nephrectomy, total lobectomy of lung
- 4. Body Part
- YSupernumerary Breast
- 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 body part
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
MDC 21 · Injuries, Poisonings and Toxic Effects of Drugs · Other O.R. Procedures for Injuries
MDC 24 · Multiple Significant Trauma · Other O.R. Procedures for Multiple Significant Trauma
ICD-9-CM equivalent
Converter →- 85.24Excision of ectopic breast tissueapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 0HTY0ZZ
Is 0HTY0ZZ a valid ICD-10-PCS code for 2027?
- Yes. 0HTY0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 0HTY0ZZ an O.R. procedure?
- Yes. 0HTY0ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 0HTY0ZZ group to?
- Depending on the principal diagnosis, 0HTY0ZZ 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 0HTY0ZZ?
- The CMS GEMs map 0HTY0ZZ to ICD-9-CM 85.24 (Excision of ectopic breast tissue).