The constant billing and coding fuckups are because the government forces providers to use them. HIPAA requires the use of the x12 standard which is woefully broken. Speech between provider and payer is completely regulated. Nobody is doing anything to address it because they are prohibited by law.

Oh and by the way: health insurance company profits are essentially capped by the government via medical loss ratios. They don’t make more money the more they deny otherwise they will be forced to send rebate checks (like what happened during Covid)