how to bucketize field values for a measure

I am working in Qlik Sense 3.2.  I have the following sample source table:

T1:

Load * Inline [

ID, Days, Price

1, 2, $5

2, 11, $10

3, 10, $2

4, 30, $30

5, 32, $100

6, 17, $25

7, 25, $32

8, 3, $37

9, 46, $25

10, 48, $17

]

;

I need to create a dimension called 'DayCategory' that "bucketizes" the Days field by ranges (maps the ranges to single values).  The ranges and output values are:

0 - 10     a

11 - 20     b

21 - 30     c

31 - 40     d

41 - 50     e

I will then be using this dimension in a combo chart that has measures on fields ID and Price.

How can I create this new field / dimension in the load script?  I know that the most intuitive answer is to brute-force it with nested if statements.  That won't work for my particular situation, though, because I have far more bucket ranges than what I listed in the dummy data above.  I don't think Pick-Match or ApplyMap will work either because those solutions work for one-to-one value mappings.  I am aware of the Class chart function, but that won't work because I am not measuring on field Days.  So, I'm at a loss.