Microsoft has been working on making improvements to the Azure meter category and sub category names over the last few months. The details of the same are available here and instructions on how to make changes to current reporting in any are here. There is also a detailed XLS available for download, which gives the old and new names for the same. Many changes are in terms of meter sub categories being promoted to meter categories of their own, like for example, the earlier ‘data services’ meter category is no longer available and all its sub categories are now meter categories on their own.
If you do some reporting on based on the Azure meter categories, you may have noticed data variations in the last few months, which can be attributed to the changes happening to the names. It would be worthwhile to revisit your list and update your logic as per the changes.