Combine Rows with Similar Info in a Dropdown Menu or Selection for user

Hello,

I have a spreadsheet that has a long list of charges... some of those charges have multiple codes attached to them... when this happens I am wanting to group them together and let the user pick which one they want to view at one time.

Here is a very small example of what exactly I am referring to... with charge #14 I am wanting it to combine and let the user pick between 2565 and 2566. The problem is that the values can range and will not always be 2565 & 2566 and there is 10,000 + records similar to this.
test.xlsx

Help?

Any suggestions?