MED pt had other foot done and not paying

The modifier that best describes the scenario you present would be modifier i 79, not necissarily a laterality modifier. You have to turn off the global effect to get reimbursed for the 2nd procedure when performed during an active global period.

Definition:

"Unrelated Procedure or Service by the Same Physician or Other Qualified Health Care Professional During the Postoperative Period"

MED pt had other foot done and not paying