Re-analysis of whole exome or genome data obtained under a service to which item 73440 or 73441 applies, for characterisation of previously unreported germline gene variants for childhood hearing loss in a patient, if:(a) the re-analysis is requested by a specialist or consultant physician; and(b) the re-analysis is performed at least 24 months after:(i) the service to which items 73440 or 73441 applies has been provided to the patient; or(ii) a service to which this item applies is performed for the patient Applicable twice per lifetime