ICD-10 Code I97.79 – Other intraoperative cardiac functional disturbances (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I97.79 – Other intraoperative cardiac functional disturbances
What it is
I97.79 identifies cardiac functional problems that arise during surgery and are not classified elsewhere. Use it when the provider documents an intraoperative heart disturbance tied to the procedure.
Clinical signs
Clinical features vary; refer to documentation. Findings may include an intraoperative change in cardiac function, rhythm, or hemodynamic stability noted by the surgical or anesthesia team.
When to use this code
Use this code when the record states an intraoperative cardiac functional disturbance and no more specific ICD-10-CM code applies. It is appropriate for procedure-related cardiac complications documented during the operation. Confirm that the event occurred intraoperatively, not before or after surgery.
Do not use for
Do not use it for chronic heart disease, routine postoperative monitoring, or cardiac events unrelated to surgery. If the documentation names a more specific intraoperative cardiac complication, code that instead.
Coding tip
Link the code to clear operative or anesthesia documentation showing the disturbance happened during the procedure.