Workers’ compensation claims look like ordinary medical claims on the surface. They are not. There is no health plan, no member ID card and, in most states, no patient responsibility. Payment is governed by state law, state fee schedules and a claims administrator who needs very different information than a health insurer does. Practices that bill workers’ comp the same way they bill commercial insurance end up with claims that sit unpaid for months.
Here is what makes workers’ comp different, and the mistakes that cost practices the most.
How workers’ comp billing differs from health insurance
| Health insurance | Workers’ compensation | |
|---|---|---|
| Who pays | The patient’s health plan | The employer’s workers’ comp carrier or administrator |
| What you need to bill | Member ID and group number | Claim number, date of injury, employer and adjuster details |
| Payment rates | Your payer contracts | The state’s workers’ comp fee schedule, in most states |
| Patient balance | Copays, deductibles, coinsurance | Usually none. Balance billing the injured worker is generally prohibited. |
| Documentation | Supports medical necessity | Also has to connect the treatment to the work injury, plus state forms and work status reports |
| Rules | Payer policy | State law, which varies widely |
The mistakes that cost practices the most
1. Starting treatment without a claim number
Without a claim number and a confirmed carrier, a workers’ comp bill has nowhere to go. Many practices register the patient as a regular visit, bill the health plan, get a denial saying the injury is work-related, and only then start chasing the employer. Weeks are lost before the right payer even sees the bill.
The fix: at scheduling, ask whether the visit is for a work injury. If yes, collect the employer, date of injury, claim number, carrier and adjuster contact before the first visit, and mark the injury as employment-related on the claim.
2. Ignoring the state fee schedule
Most states set maximum allowable amounts for workers’ comp services. Billing your commercial charge master is fine, but expecting it to be paid is not. Posting the payment against the wrong expected amount makes underpayments invisible and write-offs messy.
3. Missing state forms and work status reports
Many states require specific forms, such as initial treatment reports, progress reports and work status or return-to-work forms, on a set schedule. Some carriers will not pay until those reports arrive. A claim with perfect coding can still sit unpaid because a required report was never sent.
4. No authorization for ongoing treatment
Therapy, imaging, injections and surgery often need approval from the carrier or its utilization review process. Treating first and asking later is a common reason for denied workers’ comp bills, and appeals under state rules can take months.
5. Billing the patient
In most states, once a claim is accepted, the injured worker cannot be billed for covered treatment. Sending statements to the patient creates complaints and, in some states, penalties. When a claim is denied as not work-related, the path to billing the health plan or the patient has its own rules and timing.
6. Losing track of disputed claims
Workers’ comp claims can be accepted, denied or placed under investigation. When a claim is disputed, the bill can sit in limbo for months. Without someone tracking the status and the adjuster, these claims age quietly past 120 days.
Where workers’ comp revenue leaks
In the practices we work with, workers’ comp problems usually show up as a small number of very old claims with large balances. Orthopedics, physical therapy, urgent care and occupational medicine feel it most because work injuries are a large share of their visits. For more on recovering old balances, see medical billing AR recovery.
How DrBillerz handles workers’ comp billing
Our billers set up workers’ comp cases correctly at intake, track claim status and adjuster contacts, send required state reports, bill to the state fee schedule and follow up on disputed claims until they are resolved. A dedicated RCM manager reviews your aging workers’ comp claims every month, and you can see the status of each one in the client portal.
Dedicated billers start from $7/hour, and the first 4 weeks are a free pilot. Practices with heavy workers’ comp volume often pair this with our orthopedic billing services or physical therapy billing services.
Start your free 4-week pilot · Send an enquiry
Frequently asked questions
Can I bill the patient for a workers’ comp visit?
In most states, no. Once the claim is accepted, the injured worker generally cannot be balance billed for covered treatment. Rules differ by state when a claim is denied.
What information do I need before billing workers’ comp?
The claim number, date of injury, employer, carrier or claims administrator, and adjuster contact details. The claim should also be marked as employment-related.
How much does workers’ comp pay?
In most states, payment follows the state workers’ compensation fee schedule rather than your commercial contracts.
Why are my workers’ comp claims so slow?
Common causes are missing claim numbers, missing state reports or work status forms, treatment without required authorization, and disputed claims that nobody is tracking.
See our orthopedic billing services for practices managing workers compensation and surgical global period billing. We serve practices in Pennsylvania, Ohio, and Texas.
