What this is
After a dentist treats a patient, the practice has to ask the patient's
insurance company to pay its share. The practice does that by sending a
claim. The insurance company either pays the claim, denies it, or pays
less than expected.
When a payment comes in, it has to be posted against the right patient
and procedure in the practice management software, with PPO write-offs
adjusted to the contracted fee schedule. When a claim is denied, someone
has to read the explanation of benefits, figure out why, and decide
whether to correct and resubmit, file an appeal, or accept the denial.
When a claim sits unpaid, someone has to chase the carrier.
That whole loop is what insurance billing is. It is the work of
submitting claims, posting payments, working denials, and following up
on aging.