How Uninsured Motorist Coverage, PIP and MedPay Work After a Car Crash
@beaulaqv137
November 6, 2026 · 3 min read
After a car crash, more than one insurance policy may apply. People usually think first of the at-fault driver's liability coverage, yet personal injury protection (PIP), MedPay and uninsured motorist (UM) coverage can matter as much. A car accident attorney will usually ask for the declarations page of every policy that might apply, because the coverage often decides how much of a loss can be paid.
Liability coverage and fault
Most states require drivers to carry a minimum amount of liability insurance, which covers injuries and property damage the insured driver causes to others. Minimum limits are often low compared with the cost of a serious injury. In an at-fault state, the injured person usually makes a claim against the at-fault driver's insurer. A smaller group of states uses a no-fault system, in which each driver's own PIP coverage pays medical expenses and some lost income regardless of fault. No-fault states may restrict lawsuits against the at-fault driver unless the injury meets a legal threshold.
PIP and MedPay coverage
No-fault states require PIP, and a few other states do as well, while some states offer it as an option. Depending on the policy, it can pay medical bills, part of lost wages and certain household expenses. Medical payments coverage, often called MedPay, is a separate and usually smaller coverage. It pays medical expenses for the policyholder and passengers regardless of fault, up to the limit on the policy. An auto accident attorney will check whether these benefits require prompt notice or a written claim.
Coverage for uninsured and underinsured drivers
Uninsured motorist (UM) coverage pays for injuries caused by a driver who has no insurance, and many states extend it to hit-and-run crashes. Underinsured motorist (UIM) coverage applies when the at-fault driver's limits fall short of the loss. Some states require UM coverage, and others let a policyholder reject it in writing. Rules for stacking coverage from several vehicles or policies also vary by state. In some states, a policy held by a relative in the same household may provide UM coverage as well.
How a UM claim works
The UM claim goes to the injured person's own insurance company, yet in that claim the insurer stands in the shoes of the uninsured driver, which means it can contest fault and the value of the claim. Many policies require prompt notice, and a hit-and-run claim may require a timely police report. Some states require that the UM insurer be served with a copy of the lawsuit against the at-fault driver. A car crash attorney usually checks these steps early, because missing one can affect the coverage.
Coverage for the car itself
Collision coverage pays for repairs to the policyholder's car regardless of fault, less the deductible. The insurer can then seek repayment from the at-fault driver's insurer through subrogation, which can sometimes recover the deductible as well. Rental reimbursement and gap insurance are optional coverages that can matter after a total loss.
Health plans and repayment
Medicare, Medicaid or a health plan may pay medical bills first and later seek repayment from a settlement. A car accident lawyer usually resolves these liens before funds are distributed. Coverage rules vary by state and by policy, and this article is general information, not legal advice.