Restrict report based on combination of chars

Hi there, i would like to restrict data displayed on my report depending on a combination of characteristic values.

e.g.

Report has Pricing Condition Type, Billing doc Type and Amount.

If Pricing Cond Type = ABC then do not display Billing Doc Types 1,2 and 3 for Pricing Cond Type = ABC only.

any help will be greatly appreciated.

Running 3.1