<div class="pull-right">
    <span  data-ng-repeat="data1 in edcnTypeCodeList" >
         <input type="radio" name="aa1234"   data-ng-model="edcnTypeCode" value="{{data1.codeKey}}">{{data1.codeName}}
    </span>
</div>

$parent 를 붙여준다 

<div class="pull-right">
    <span  data-ng-repeat="data1 in edcnTypeCodeList" >
         <input type="radio" name="aa1234"   data-ng-model="$parent.edcnTypeCode" value="{{data1.codeKey}}">{{data1.codeName}}
    </span>
</div>