How Medical Marijuana Affects Your Workers’ Comp Claim

Whether workers’ compensation will pay for medical marijuana depends almost entirely on the state your injury happened in, and in most of the country the answer is either no or unsettled. Only a handful of states require insurers to reimburse cannabis costs, a similar number explicitly prohibit it, and the majority have no clear rule at all. Before you worry about reimbursement, though, understand the bigger risk: using medical marijuana can jeopardize your entire workers’ comp claim and your job, even in states where the drug is legal.

Will Your State Make the Insurer Pay

Workers’ compensation is regulated state by state, and states have split sharply on medical marijuana reimbursement. Where you live determines whether you have any realistic shot.

States That Require Reimbursement

Roughly half a dozen states have established, mostly through court decisions rather than legislation, that workers’ comp insurers must reimburse injured workers for medical marijuana. The reasoning that has held up in several state supreme courts goes like this: writing a check to reimburse a worker doesn’t force the insurer to possess or distribute marijuana, so the payment itself doesn’t violate federal law. The worker handles the purchase; the insurer just pays.

States That Prohibit Reimbursement

A roughly equal number of states have gone the other way, writing explicit language into their medical marijuana statutes or workers’ compensation codes stating that insurers are not required to cover cannabis. Some of these bars come from the legislature, others from courts or agency rules. In these states there is no reimbursement path, no matter how clearly your doctor ties marijuana to your work injury.

States Where the Law Is Silent

Most states fall into a gray zone with no definitive legislation or appellate ruling. Reimbursement gets fought out case by case, usually through litigation, and outcomes turn on the specific workers’ comp judge, the strength of your medical evidence, and whether the insurer decides it’s worth contesting. If you’re in one of these states, assume you’ll need a lawyer and be prepared to lose even with a solid case.

Federal Workers’ Comp Is a Different Story

If your injury is covered by a federal workers’ compensation program rather than a state system, reimbursement is off the table. In March 2026, the U.S. Second Circuit Court of Appeals ruled in Peña Garcia v. Department of Labor that medical marijuana cannot qualify as “reasonable and necessary medical treatment” under the Longshore and Harbor Workers’ Compensation Act, holding that federal law “categorically bars marijuana from being deemed a reasonable and necessary medical expense.”1Office of the Law Revision Counsel. 21 USC 812 – Schedules of Controlled Substances The same reasoning would likely govern claims under the Federal Employees’ Compensation Act. If you work on the waterfront, at a federal agency, or in another federally covered role, expect any request to be denied.

A Positive Test Can Threaten Your Whole Claim

This is where injured workers get blindsided. The reimbursement question is secondary. The real exposure is that a positive marijuana test can jeopardize all of your workers’ compensation benefits, including wage replacement, medical care unrelated to marijuana, and disability payments.

About 14 states have workers’ comp statutes that let a positive drug test serve as evidence that an on-the-job injury was caused by intoxication. In some of these states, a positive test creates a rebuttable presumption that drugs caused the accident, which shifts the burden to you to prove the marijuana in your system didn’t contribute. Even in states without a formal presumption, insurers routinely argue that a positive test shows impairment, and judges sometimes cut or deny benefits on that basis.

The structural problem is that marijuana stays detectable long after it stops impairing you. You could use medical marijuana on a Saturday evening, get hurt at work on Monday, test positive, and face an insurer arguing your injury was drug-related. Some state courts require the employer to show actual impairment rather than just the presence of metabolites, but not all do, and the litigation itself is expensive. If you use medical marijuana in a state with an intoxication presumption, you are carrying a legal risk that goes well beyond whether the marijuana gets paid for.

Your Job Isn’t Safe Just Because Your Claim Is

An insurer’s obligation to pay for treatment is legally separate from your employer’s right to enforce workplace drug policies. Most employers maintain drug-free workplace rules that prohibit a positive marijuana test regardless of a state-issued medical card, and courts have generally upheld those policies. You can win a reimbursement order and lose your job over the same marijuana use.

The problem is sharpest in safety-sensitive industries. The Department of Transportation requires marijuana testing for commercial truck drivers, pilots, train engineers, pipeline workers, and other safety-sensitive transportation roles. A DOT compliance notice published in December 2025 confirmed that its testing requirements remain unchanged regardless of state marijuana laws or federal rescheduling.2U.S. Department of Transportation. DOT Rule 49 CFR Part 40 Section 40.23 A verified positive triggers immediate removal from safety-sensitive duties. Federal contractors, defense workers, and employees at agencies like NASA face comparable restrictions.

Some state disability discrimination laws protect medical marijuana patients from being fired, but the protections are inconsistent and generally don’t apply where safety is at stake. Before you fill a medical marijuana recommendation, talk with a lawyer about how your state handles the intersection of medical cannabis, employment protections, and workplace testing.

What You Have to Prove for Medical Necessity

Even in states that allow reimbursement, a medical marijuana card doesn’t guarantee coverage. Workers’ comp pays for treatment that is “reasonable and necessary” for your work-related injury, and the proof bar for marijuana is typically higher than for conventional care. A credible case usually needs:

  • A formal recommendation from a physician authorized under your state’s medical marijuana program. Out-of-state providers or doctors outside the program generally won’t satisfy the requirement.
  • Medical evidence connecting marijuana use to the specific work-related condition, whether chronic pain from a back injury, nerve damage, PTSD from a workplace incident, or another qualifying diagnosis.
  • Evidence that conventional treatments, such as physical therapy, anti-inflammatories, or opioids, either failed or caused unacceptable side effects. This isn’t always a formal legal requirement, but it dramatically strengthens the claim.
  • Ongoing documentation from your treating physician on dosage, method of use, and functional improvements over time. One-time approval isn’t enough.

Adjusters look for gaps in the record, and judges need a clear medical justification to order payment for a legally controversial treatment. Without that documentation, even marijuana-friendly states will often say no.

What You’ll Pay Out of Pocket

Most injured workers who use medical marijuana end up paying for it themselves. The initial physician evaluation to get a card typically runs between $100 and $400 depending on the state and provider, and most states charge an annual registration fee on top. The marijuana itself varies widely by state, condition, and product.

Federal law also closes off most of the normal ways people pay for medicine:

  • Health Savings Accounts and Flexible Spending Accounts cannot be used for medical marijuana. These accounts follow federal tax rules, and marijuana doesn’t qualify as an eligible medical expense.
  • Neither Medicare nor Medicaid covers medical marijuana. Medicare Part D can cover three FDA-approved cannabis-derived pharmaceuticals (cannabidiol, dronabinol, and nabilone), but those are not what dispensaries sell.
  • Private health insurance does not cover medical marijuana for the same federal reasons.
  • If your workers’ comp case settles and you’re a Medicare beneficiary, CMS will not include marijuana costs in a Workers’ Compensation Medicare Set-Aside, so even reimbursement during an active claim won’t carry into a structured settlement.

Annual costs can run into the thousands, with no tax-advantaged account or insurance program to offset them.

Could Federal Rescheduling Change This

Marijuana remains a Schedule I controlled substance under federal law, a category reserved for drugs considered to have no accepted medical use.1Office of the Law Revision Counsel. 21 USC 812 – Schedules of Controlled Substances That classification is the foundation of nearly every court decision denying reimbursement.

A move to Schedule III would remove the “no accepted medical use” argument and would likely open the door to HSA and FSA eligibility for prescribed products. The Second Circuit explicitly noted in its 2026 ruling that its hands were tied by the current Schedule I status, suggesting a different result under Schedule III. Rescheduling would not legalize recreational use, would not override DOT testing, and would not force any state to require reimbursement. Each state would still have to update its own law or have its courts revisit earlier rulings.

The process has moved slowly. A proposed rule has been pending since May 2024, and a December 2025 White House directive instructing the Attorney General to expedite the rulemaking has not yet produced a final rule.3The White House. Increasing Medical Marijuana and Cannabidiol Research Until that happens, marijuana is Schedule I and every legal argument built on that classification is still in force.