ICD-10 Code I97.191 – Other postprocedural cardiac functional disturbances following other surgery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I97.191 – Other postprocedural cardiac functional disturbances following other surgery
What it is
This code identifies a cardiac functional problem that develops after a surgical procedure and is not classified elsewhere. It applies when the postoperative heart disturbance is linked to surgery other than cardiac surgery.
Clinical signs
Clinical features vary; refer to documentation. Common charted findings may include new postoperative cardiac dysfunction, rhythm-related concerns, or reduced cardiac performance noted after surgery.
When to use this code
Use I97.191 when the provider documents a cardiac functional disturbance occurring after another operation and does not assign a more specific diagnosis. You should code it only when the relationship to surgery is clearly stated. Check documentation if the record does not identify the exact postoperative cardiac issue.
Do not use for
Do not use this code for preexisting heart disease, routine postoperative monitoring, or complications that are better described by a more specific postoperative cardiac code. Do not use it when the documentation does not link the condition to surgery.
Coding tip
Confirm the operative note and postoperative assessment explicitly connect the cardiac disturbance to the prior surgery before assigning I97.191.