Hmm, sounds like my ego is being stroked some to take this on. May have worked. 
I think I will do the claim builder which will give a much better idea of the claim generation side of this and allow me to pick on some billing tables.
I think my approach will be having a master claim set based on a new invoice id scheme. Then allow visit/encounters from a selection of available where each, on selection, becomes a subset to claim master using same claim identifiers we are use to ie. 30-99.
Billing manager will then be modified to parse new claim scheme. Once done this far will open new PR to test and run continued development.
Being I’ve used up one day, I suppose this is due tomorrow.
Advise and recommendations always welcome.