Per CPT guidelines, no it does not matter which 2 of the 3 key components you utilize to support your level in a 2 of 3 code. Some carriers may require one of them to be MDM though.
You need to be careful though because medical necessity is the overarching criterion for level selection. You could have comprehensive history and exam on everyone, that doesn't mean a 99215 is medically necessary.
For new patients and other 3 of 3 codes, all 3 of the key components must meet or exceed the level in order to support it.
Laura, CPC, CPMA, CPC-I, CEMC