Guide
Coordination of benefits
Coordination of benefits (COB) is the set of rules that decides which insurer pays first when a patient has more than one plan. Clinics collect 'other coverage' so claims go to the right payer in the right order — not so the front desk can gossip about someone's workplace. In Canada this usually sits beside a provincial health card, not instead of it. In the US it sits between commercial plans, Medicare, and Medicaid. The clinical note is not a COB form, but a wrong payer still becomes your billing problem.
Why the clipboard asks about other coverage
If you only bill the provincial ministry, you still need other-coverage fields for the services ministries do not pay: dental, physio extras, private rooms, devices, out-of-country, some drugs, ambulance in some provinces, and uninsured physician services. If you bill WSIB/WCB, MVA insurers, or US payers, COB is how you avoid two cheques for one visit — or zero cheques because you asked the secondary first.
- Primary vs secondary: who is first payer under the plans' COB rules.
- Birthday rule (common in private family plans): the parent whose birthday falls earlier in the year is primary for a child — confirm on the current insurer booklet, do not memorize folklore.
- Dependent vs subscriber: the patient's own workplace plan vs a spouse's.
- Provincial plan vs private: OHIP (or MSP, RAMQ, etc.) is not 'other coverage'; it is the public plan. Other coverage is the second layer.
Collecting is not accusing
Patients hide a second plan because they think you will refuse them or because a divorce made the card awkward. Explain that the ministry and the private insurer both expect the order to be right, and that you are not choosing sides. Do not enter a plan number you have not seen.
Canada vs the United States
| Canada (typical medical clinic) | United States (typical medical clinic) | |
|---|---|---|
| First payer for medically necessary physician care | Provincial/territorial plan if the patient is insured there | The plan that COB rules name as primary (employer, Medicare, Medicaid, etc.) |
| Second layer | Employer extended health, Blue Cross-type plans, travel, WSIB/WCB, MVA | Secondary commercial, Medigap, or another public program |
| Dental / allied | Often private first; public dental programs in some provinces/groups | Dental usually separate; medical COB does not pay the dentist |
| What the clinic must store | Health card + any third-party identifiers needed for that claim | All active plans, order, and whether Medicare is involved |
Canadian extended-health COB among private insurers is often described in CLHIA-style industry rules (e.g. whose plan is primary when both spouses work). Those rules are for the insurers. Your job is to capture accurate subscriber names, policy numbers, and whether the visit is work-related or MVA-related so the claim is not sent to the wrong window. Do not invent a primary plan to get a faster remit.
US Medicare COB (MSP — Medicare Secondary Payer) is its own statute. If you bill US payers, follow that process; this page will not recap CMS manuals. Dual-eligible Medicare/Medicaid patients are a known trap for clinics that only asked for one card.
Clinic workflow
Other-coverage capture
Provincial/territorial health number on file and valid: Y/N Work-related (WSIB/WCB) this visit: Y/N — claim # if any: MVA this visit: Y/N — insurer / file #: Private extended health: insurer, subscriber, policy/group, relationship: Second private plan (spouse): same fields: US or out-of-province plan: Y/N — details: Patient declined to provide / unknown — note why: Staff who verified cards (date):
Put COB facts in registration or the billing worksheet, not in the Assessment paragraph. The clinical note should still say if the injury is occupational — that is clinical and it drives the payer. Coordination of benefits is a sibling of medical billing and coding, not a substitute for a defensible SOAP.
Notes that match the visit you billed
Scribeberry drafts the encounter. Your billing staff still apply COB using the cards on file. Verify any billing suggestion against the current schedule and the signed note. Pro is $99/month after the free trial.
Frequently asked questions
What is coordination of benefits?
Rules that decide which plan pays first when a patient has more than one. Clinics collect other-coverage information so claims are sent in that order.
Is a provincial health card 'other coverage'?
No. In Canada the provincial or territorial plan is the public payer for insured medical services. Other coverage is private, WSIB/WCB, MVA, out-of-province, or US insurance on top of or beside that.
Why do dental clinics care about COB?
Dental is often paid by two private plans (patient and spouse). Sending the claim to the secondary first delays payment. See also dental practice management software.
Does Scribeberry coordinate benefits?
No. It drafts clinical documentation. Payer order stays with your registration and billing process.
Templates
