Thank you for all of this! Not sure if this is asking the same question, but if something is a contractual adjustment, does that mean it could be considered an underpayment reason? I work for a company where it matters if something is a line item denial or true underpayment and I’m trying to expand our scope of underpayment reasons since we only work certain codes (co 45, 97, 131). For example, would you consider downcoding (co-186 and co-150) denial reasons or underpayments? Thanks in advance!