Option to have different Natural Account values for Intercompany and non Intercompany ITOs

Summary:

Business would like to derive the Natural account based upon the type of ITO's transactions in costing and receipt accounting.

It's like for intercompany ITO's(example sending goods from US to UK) the natural account value should be different than the value of account code for standard intercompany ITOs(transferring goods within US from one site to another)

We need help to design the account rule condition in such a way that only for intercompany ITO transactions, mapping set having one of the segment called account code should pick and for other ITO's which are not intercompany(transfer of goods within same BU/LE in US) system should pick the defined SLA.