In this task, you are given an input list. A list contains several comma-separated items written within brackets. You need to return the count of all the numerical elements in the given list. Return 0 if no numerical element in the list.
['H', '7379', '6649', '4367', 'z', 'O', '1369', '5167', 't', '207', '1021', 'J', 'K', '1893']