The time spent completing a procedure for a patient cannot be used to calculate the time for the CMGP modifier. For example, a patient might ask a physician to examine a sebaceous cyst, and the physician decides to excise the cyst.
If the time spent examining the cyst was under 15 minutes, and the time removing the cyst took 25 minutes, the claim to the Alberta Health Care Insurance Plan would use health service codes 03.03A and 98.12C.
The complexity modifier could not be claimed, as the time spent delivering the visit portion of the service was under 15 minutes.
