Claims & denials
Coordination of benefits
The rules determining which payer is primary when a patient has more than one plan.
What it means in dermatology
Also known as: COB
COB denials often mean the patient never updated their information with the payer, so the fix is a patient call rather than a claim correction.
Secondary claims must carry the primary's remittance detail; submitting them without it produces a second avoidable denial.
Why it matters to your revenue
COB errors stall claims for weeks and often push them toward timely-filing limits.
See this term in your own numbers
A free claims audit reviews a de-identified sample of your dermatology claims and returns a line-item findings report — including where terms like this one are costing you money.
Request a free claims audit