Response
Unfortunately, the providers are not consistent. Some use only medical (non-F) codes, some use only behavioral health codes (F codes), some use medical primary/BH secondary, some use BH primary/medical secondary. They each have a rationale for their method, but no one can tell me where they got that direction. There is not an obvious pattern emerging in the denials.
I realize it is still a very vague reply, but hopefully gives a general idea.
diagnosis codes, diagnosis coding