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ICD-10-CM 2027 diagnosis code

Y65.52Performance of procedure (operation) on patient not scheduled for surgery

✓ Billable / specific

Y65.52 is a valid, billable ICD-10-CM code for performance of procedure (operation) on patient not scheduled for surgery. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Perform of proc (op) on patient not scheduled for surgery

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Y65.52

Y65.52 is the ICD-10-CM diagnosis code for Performance of procedure (operation) on patient not scheduled for surgery. It belongs to category Y65 (other misadventures during surgical and medical care), block Y62-Y69 (misadventures to patients during surgical and medical care) and chapter 20 (external causes of morbidity). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within Y65.5 (Performance of wrong procedure (operation)), Y65.52 is specifically for Performance of procedure (operation) on patient not scheduled for surgery. Related codes cover on correct patient (Y65.51) and correct procedure (operation) on wrong side or body part (Y65.53).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as E876.6 (Performance of operation (procedure) on patient not scheduled for surgery).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Performance of procedure (operation) intended for another patient
  • Performance of procedure (operation) on wrong patient

Notes that apply from higher levels

Instructions written at a parent level also apply to Y65.52.

Broader instructions also apply from Y62-Y69 Misadventures to patients during surgical and medical care and Chapter 20: External causes of morbidity.

Alphabetic index entries

5 entries

Terms in the official ICD-10-CM index that lead to Y65.52.

ICD-9-CM equivalent

Converter →
  • E876.6Performance of operation (procedure) on patient not scheduled for surgeryexact

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 Y65.52

Is Y65.52 billable?

Yes. Y65.52 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Y65.52 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Y65.52 as a principal diagnosis.

Is Y65.52 a CC or MCC?

No. Y65.52 is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for Y65.52?

The CMS General Equivalence Mappings map Y65.52 to ICD-9-CM E876.6.