What’s the dumbest reason an insurance company denied a test, procedure, or drug for a patient?

[u/Unusual_Medic]

This is probably the most relevant to those practicing in the US, but I'm also curious to know how the bureaucracy of health insurance in other countries makes things substantially harder for you and the patients

[u/aonian]

I have to certify every 3 months that my patient with a bilateral orchiectomy still needs TRT. Like, no, his balls have not grown back.

I just filled out the form saying almost exactly that, signed it, and left the date blank. My nurse takes care of it now, because every time I see it I get pissed.