Y65.5Header code — not billable
Performance of wrong procedure (operation)
- Chapter
- 20. External causes of morbidity
- Category
- Y65
- Effective date
- October 1, 2026
Related codes in category Y65
Y65Other misadventures during surgical and medical careY65.0Mismatched blood in transfusionYesY65.1Wrong fluid used in infusionYesY65.2Failure in suture or ligature during surgical operationYesY65.3Endotracheal tube wrongly placed during anesthetic procedureYesY65.4Failure to introduce or to remove other tube or instrumentYesY65.51Performance of wrong procedure (op) on correct patientYesY65.52Perform of proc (op) on patient not scheduled for surgeryYesY65.53Perform of correct procedure (op) on wrong side or body partYesY65.8Oth misadventures during surgical and medical careYes
Frequently asked questions
What is ICD-10 code Y65.5?
Y65.5 is an ICD-10-CM diagnosis code for Performance of wrong procedure (operation).
Is Y65.5 a billable code?
No. Y65.5 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is Y65.5 in?
Y65.5 falls under Chapter 20: External causes of morbidity.
When did Y65.5 become effective?
Y65.5 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Y65.5?
Y65.5 belongs to category Y65, which includes 10 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.