Selection List To Format Following Cells

I would like to create a spreadsheet that allows me to have a drop down list (in this case I diagnosis - from a list of shoulder, knee and ankle). I have used data validation to do this part. I would like to then have the next column automatically select the appropriate outcome measure (shoulder = DASH, Knee = Berg balance, Ankle =BPI) and display this next to the diagnosis and in the final outcome measure box. I would then like this to limit the possible entry details for the score boxes both at initial assessment and final (see D14, D15, D16 respectively).

I have attached a work sheet too - OP outcome measures.xlsx