Well, on the surface, it appears you can code 99358 in this case. Per 2013 CPT, "This prolonged service may be reported on a different date than the primary service to which it is related."
However, according to the E&M Service Guidelines section of CPT, in the office setting face-to-face "is defined as only that time spent face-to-face with the patient
and/or family." This, unfortunately, implies that you would need to use the Prolonged Service With Direct Patient Contact codes (99354-99355). However, those codes can only be reported on the same date as the original E/M.
It looks like this scenario cannot be coded. Anyone else have thoughts on this?
That's a tough case!