Receiving error from pie chart that should show difference error codes by category

[Khanu89]

I am trying to create a pie chart that would show difference error codes by category. 

Here is my current query:

index= my_index

| stats last(_time) as _time last(Message) as Message by Type

| stats count by Type

| eval ErrorCode=443

| eval ErrorrCode=503

I'd like to pull in all errors without specifying the ErrorCodes as I have in my query.

[DanielPriceUK]

Can you show us example of the data your working with?

[Khanu89]

what sort of data would you like me to share?

[DanielPriceUK]

The data your trying to create the Piechart with