MY understanding is If they didn't allow it because it's above the contracted rate, then no. If they didn't allow the entire charge for reasons such as medical necessity or maxed benefits, then you can charge the full rate.
If a patient receives Chiropractic care and maxes their benefits they are still obligated to pay for the additional treatment they receive. You are not required to treat a patient for free simply because they are out of benefits.
Well in Wisconsin, we are allowed to bill them if they continue to receive care after their benefits have been exhausted. They are allowed 20 visits per year, period and anything after that is on a self pay basis. Though the laws may be different in other states, we notify the patients up front that these are their benefits and should they choose to receive care after those 20 visits have been used, they will be responsible for it on a self pay basis so under no circumstances do we simply continue to treat only to inflate our A/R by not notifying the patients of their benefits. The choice to continue with treatment is theirs, as we clearly state in our financial agreements after verifying benfits and before they begin with their treatment.