ICD-10 Code I97.7 – Intraoperative cardiac functional disturbances (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I97.7 – Intraoperative cardiac functional disturbances
What it is
I97.7 identifies cardiac functional problems that arise during surgery or another operative procedure. Use it when the record shows an intraoperative disturbance of heart function, not a chronic cardiac disease.
Clinical signs
Clinical features vary; refer to documentation. Notes may describe new intraoperative rhythm or hemodynamic instability, reduced cardiac output, or other operative cardiac dysfunction recognized by the surgical team.
When to use this code
Use I97.7 when the provider documents a cardiac functional disturbance occurring during the operation itself. It fits cases where the event is clearly tied to the intraoperative period and is not better explained by a preexisting heart condition.
If the chart only mentions postoperative cardiac issues, check documentation and code the condition that best matches the timing and provider assessment. Do not infer the complication from anesthesia alone without clear operative documentation.
Do not use for
Do not use this code for chronic heart disease, postoperative cardiac complications, or nonspecific chest symptoms. If the disturbance is not documented as intraoperative, check documentation.
Coding tip
Assign I97.7 only when the operative note or complication record explicitly links the cardiac disturbance to the procedure.