Which of the following is not typically a component of a patient's legal health record?

The correct choice is the option referring to data that is not retrievable, as it does not form part of a patient's legal health record. A patient's legal health record is defined as the official documentation that captures the patient's medical history, clinical interactions, and treatment information, which are all retrievable and can serve as evidence in legal contexts.

Legal health records typically include essential components like a patient's medical history, which provides important context regarding the patient's past health issues and treatments. Radiology images are also part of this record, as they are vital diagnostic tools used to support clinical decisions. Additionally, billing information is included because it details the financial aspects of care provided, which can be significant in reimbursement and legal matters.

In contrast, data that is not retrievable cannot be included in the legal health record, as the record must consist of documents and data that can be accessed and verified when needed. Therefore, this option accurately identifies a component that does not belong in the legal health record.