This mammo discussion is reminding me of some peculiar quirk in colonoscopy coverage which my gastro has tried to explain to me. Screening colonoscopy covered if you meet the clinical guidelines; other types of colonoscopy not necessarily covered. I’ve asked “it’s a screening procedure- why else do you do one?” and was told that if you pick up the phone to say “I have XYZ symptom” and the recommendation is a colonoscopy it might not be covered.
This makes zero sense to me. But I guess the question “when is a screening procedure not a screening procedure” is for greater minds than my own.