CO-146Contractual Adjustment
Diagnosis was invalid for date of service
What this code means
The diagnosis code used on your claim was not valid or had not been adopted yet on the date your service was performed.
What to do next
Ask your provider to verify the correct diagnosis code for the date of service and resubmit. This is a coding error.
Appeal outlook: Very high when corrected
Recommended tool
Bill Advantage can analyze your denial and generate a ready-to-send appeal or dispute letter in minutes.
Open Medical Bill Analyzer