Final answer:
Insurance claims can be rejected for various reasons including incomplete documentation, claim exceeding coverage limits, and incorrect patient information.
Step-by-step explanation:
The most common reason why insurance claims are rejected is due to incomplete documentation. When the required documents are not submitted or are missing crucial information, the insurance company cannot process the claim properly. Another common reason is when the claim exceeds coverage limits. If the claim amount surpasses the maximum coverage limit specified in the insurance policy, it will be rejected.
Lastly, if the claim is sent to the wrong insurance plan or includes incorrect patient information, it may also be rejected. It is crucial to double-check and make sure that the claim is directed to the correct insurer and that all the patient information provided is accurate to avoid claim rejection.