Type the code from your EOB or remittance, like CO-197 or N290. You'll get the meaning in plain English and what to do next.
CO: the practice absorbs it; don't bill the client. PR: the client owes it. OA and PI: other or insurer-initiated adjustments.
The reason the insurer paid less or nothing. It often comes with a remark code (like N290 or MA130) that says exactly what's wrong.
Missing or wrong details: fix and resend a corrected claim. A judgment call by the insurer (like medical necessity): appeal.
Corrections and appeals have their own deadlines. Check them with the filing deadline checker.
Explanations are our own plain-English summaries of the standard claim adjustment and remark codes, written for therapy practices. The official code lists are maintained by X12 and updated several times a year. Checked October 2026.
Claims sent within 48 hours, rejections worked within 5 working days, for a flat monthly fee. It starts with a free check of your unpaid claims.