Multi channel electrocardiogram monitoring and recording during exercise (motorised treadmill or cycle ergometer capable of quantifying external workload in watts) or pharmacological stress, if: (a) the patient is 17 years or more; and (b) the patient: (i) has symptoms consistent with cardiac ischemia; or (ii) has other cardiac disease which may be exacerbated by exercise; or (iii) has a first degree relative with suspected heritable arrhythmia; and (c) the monitoring and recording: (i) is not less than 20 minutes; and (ii) includes resting electrocardiogram; and (d) a written report is produced by a medical practitioner that includes interpretation of the monitoring and recording data, commenting on the significance of the data, and the relationship of the data to clinical decision making for the patient in the clinical context; and (e) the service is not a service: (i) provided on the same occasion as a service to which item 11704, 11705, 11707 or 11714 applies; or (ii) performed within 24 months of a service to which item 55141, 55143, 55145, 55146, 61324, 61329, 61345, 61349, 61357, 61394, 61398, 61406, 61410 or 61414 applies Applicable only once in any 24 month period