Note: the service only applies if the patient meets the requirements of the descriptor and the requirements of Note: IR.0.1 and IR.1.2 and does not apply to a service provided to a patient if, in the previous 24 months, a service associated with a service to which item 55143, 55145 or 55146 applies has been provided to the patient. Exercise stress echocardiography focused study, other than a service associated with a service to which: (a) item 11704, 11705, 11707, 11714, 11729 or 11730 applies; or (b) an item in Subgroup 3 applies Applicable not more than once in a 24 month period (R)