Which error is an example of transposing information on an insurance claim?

Transposing information on an insurance claim refers to the act of incorrectly switching or reversing certain pieces of information that are supposed to be distinct but are mistakenly interchanged. This is most clearly illustrated by reversing the patient name with the subscriber name. This specific error occurs when the name of the patient receiving the medical service is incorrectly placed in the field designated for the policyholder or subscriber, and vice versa. Such an error can lead to confusion regarding who the insurance coverage is for, potentially resulting in claims denials or delays due to mismatched information.

In the context of the other options, they represent different types of errors but do not involve the transposing of information. A missing preauthorization number indicates that required prior approval for services was not obtained; incorrect billing codes relate to the assigned billing items not matching the services rendered; and omitting required attachments refers to failing to include necessary documentation to support the claim. Each of these errors can lead to complications in processing claims but does not reflect the direct transposition of information between distinct fields as seen in the correct answer.