I have done exclusively chiro billing for over 4 years.

95% of my patients receive a 98941, the rare exception is 98940, and I have never billed 98942, because no one has ever received it. Our state can't do 98943.

In Michigan, the only insurance company that requires the diagnosis to support a 3-4 region adjustment is Medicare. For every other insurance, we use a complete diagnosis of only the primary complaint. No insurance company has ever requested or questioned the billing of a 3-4 region adjustment. It is clearly documented in the file, if they should question what's being adjusted.

Good luck,
Becki