A misdiagnosis case generally involves a healthcare provider’s diagnostic decision-making falling below the accepted standard of care, followed by harm that was caused or made worse by that failure. The “misdiagnosis” may be an outright wrong conclusion, but it can also be a delayed diagnosis where the condition should have been identified sooner based on the symptoms and information available at the time.
In Montana, many people interact with different parts of the healthcare system before they receive the correct diagnosis. A patient might start with a primary care visit, then be sent to urgent care, then to an emergency department, and later to a specialist. A diagnostic error can occur at any stage, including when test results are interpreted, when follow-up is recommended, or when red flags should have prompted additional testing.
Importantly, a bad outcome alone is not the same as legal fault. Medicine is complex, and some conditions are difficult to identify early. The legal question is whether the provider’s actions were reasonable under similar circumstances, using the information they had and the medical judgment expected of a comparable provider.


