Modifier __________ reports right foot, second digit.

The correct answer is the modifier that specifically indicates a procedure or service performed on the right foot, specifically the second digit (or second toe). In the context of coding for procedures, modifiers provide additional detail about the service performed to help ensure accurate billing and proper understanding of the procedure.

Modifier T6 is designed for reporting specifically on the second digit of the right foot. This level of specificity is crucial in medical coding as it can affect reimbursement and the clarity of the medical record. When coding for procedures on extremities, it's essential to use modifiers that accurately reflect the anatomical site to avoid confusion or misinterpretation during claims processing or audits.

The other modifiers listed do not represent the same level of specificity for the right foot's second digit. Each modifier typically corresponds to a different anatomical site or digit, making it essential to choose the correct one to ensure that the report accurately reflects the procedure performed.