MRI, Specialists and Referrals on an L&I Claim

By Benjamin McCay, DC, CCSP

Published October 15, 2026

Most work injuries do not require an MRI or evaluation by a specialist. Many uncomplicated strains, sprains, and other musculoskeletal injuries can initially be managed with conservative treatment while the worker gradually returns to normal activity and work.

Some injuries, however, do not follow the expected course. Symptoms may fail to improve, neurological findings may develop, the diagnosis may remain uncertain, or the examination may suggest an injury that requires additional testing or another type of provider. In these situations, the Attending Provider plays an important role in determining when an MRI, specialist consultation, physical therapy, or another referral may be appropriate.

Under Washington's workers' compensation system, referring a worker for additional evaluation does not necessarily mean changing Attending Providers. The Attending Provider can continue managing the claim while coordinating care with other health care providers.

When Is an MRI Appropriate After a Work Injury?

An MRI provides detailed images of structures that often cannot be adequately evaluated with ordinary X-rays, including discs, nerves, muscles, tendons, ligaments, and other soft tissues. It can be extremely useful when the results are likely to clarify the diagnosis or change treatment.

That does not mean an MRI is necessary simply because someone has pain. Many work injuries can initially be diagnosed and treated based upon the history, physical examination, and, when appropriate, plain X-rays. MRI findings also need to be interpreted carefully because abnormalities such as disc degeneration and disc protrusions are frequently found in people who have no corresponding symptoms. L&I's lumbar spine guideline specifically cautions that advanced imaging should be obtained when there is a clear clinical indication rather than simply because low back pain is present.

An MRI may become appropriate when there is concern for conditions such as:

• A disc herniation or other source of nerve compression
• Persistent or progressive neurological findings
• A significant muscle, tendon, or ligament injury
• Internal derangement of a joint
• A structural injury that has not been adequately identified with other testing
• Symptoms that are not improving as expected despite appropriate treatment
• A condition for which surgery, an injection, or another procedure is being considered

The important question is generally not simply, "Has the patient been hurting long enough to get an MRI?" The better question is whether the examination and clinical course suggest that advanced imaging is likely to provide information that will affect diagnosis or treatment.

Neurological Findings May Change the Urgency

Pain alone and neurological loss are not the same thing.

For example, radiating arm or leg pain may indicate irritation of a spinal nerve, but findings such as measurable muscle weakness, altered reflexes, or sensory loss can provide additional evidence of neurological involvement. Progressive weakness or other significant neurological changes may justify more urgent advanced imaging or specialist evaluation.

Similarly, symptoms suggesting spinal cord involvement, serious structural injury, infection, or another potentially significant condition require a different approach than an uncomplicated mechanical neck or low back injury.

One of the responsibilities of the treating provider is therefore to periodically reassess the worker rather than simply continuing the same treatment indefinitely. If the clinical picture changes, the diagnostic and treatment plan may need to change with it.

Does L&I Have to Authorize an MRI?

For Washington State Fund claims, advanced imaging such as spine and extremity MRI requires prior authorization through L&I's utilization review process. The clinical information supporting the MRI request is compared with L&I's applicable imaging guidelines and review criteria.

An MRI order by itself therefore does not guarantee that L&I will authorize the study. The request should explain why the MRI is clinically necessary and how the findings could affect treatment.

Another important issue is whether the condition being evaluated is accepted under the claim. Workers' compensation pays for proper and necessary treatment related to the industrial injury or occupational disease. If an MRI is being requested for a condition that has not been accepted as part of the claim, additional claim review may be necessary before the study is authorized.

For workers whose employers are self-insured, the same Washington workers' compensation system applies, but authorization requests are generally handled by the self-insured employer or its third-party administrator rather than directly through the State Fund process.

Can a Chiropractor Order an MRI on an L&I Claim?

Yes.

Doctors of chiropractic can serve as Attending Providers for appropriate musculoskeletal Washington L&I claims. L&I's current payment policies also specifically recognize that chiropractors may order radiological studies other than X-rays, although chiropractors do not perform those advanced imaging studies themselves.

This can be important when a chiropractor is managing a work injury and the clinical findings suggest that additional imaging is needed. The worker does not necessarily have to transfer the claim to a medical doctor simply to obtain an MRI.

The chiropractor still has the same responsibility as any other provider to determine whether the imaging is clinically appropriate, document the reason for the study, and follow the applicable authorization process.

When Should a Worker Be Referred to a Specialist?

A specialist consultation may be appropriate when the diagnosis is uncertain, the injury is more complicated than initially expected, the worker is not recovering appropriately, or treatment outside the Attending Provider's scope of practice may be needed.

Depending upon the condition, referral might be made to an orthopedic surgeon, neurologist, neurosurgeon, physiatrist, sports medicine physician, occupational medicine physician, or another appropriate specialist.

Examples include:

• Progressive or significant neurological deficits
• Suspected fractures or substantial structural injuries
• Possible surgical conditions
• Persistent symptoms that do not correspond well with the original diagnosis
• Failure to make expected functional progress despite appropriate conservative treatment
• A need for procedures or medication management outside the treating provider's scope
• Diagnostic findings that require specialist interpretation or management
• A need for a second opinion regarding diagnosis or treatment

Referral does not necessarily mean that surgery or another invasive procedure is being recommended. Sometimes the purpose of the referral is simply to answer a diagnostic question or determine whether additional treatment is necessary.

Do Specialist Referrals Require L&I Approval?

Many specialist consultations can be obtained without prior authorization when the worker presents a diagnostic or therapeutic problem. Washington's medical aid rules specifically allow consultation with a specialist in these circumstances. L&I recommends notifying the claim manager when a second-opinion consultation is arranged.

However, the rules are not identical for every type of consultation or treatment. Certain services require separate authorization. Mental health consultations, for example, generally require prior authorization, and some services such as pain clinic evaluation or treatment have additional requirements.

This illustrates an important distinction in workers' compensation:

A provider may be able to make a referral without prior authorization even though a particular test, procedure, or treatment recommended after that consultation still requires authorization.

Does Seeing a Specialist Mean the Specialist Becomes the Attending Provider?

No.

L&I specifically allows an Attending Provider to refer a worker to a specialist while continuing to manage the worker's treatment and claim.

For example, a worker whose claim is being managed by a chiropractor could be referred to an orthopedic surgeon for evaluation of a suspected rotator cuff tear. The surgeon can provide an opinion regarding the shoulder while the chiropractor remains the Attending Provider and continues coordinating the overall claim.

If the injury ultimately requires surgery or long-term management that is better handled by the specialist, transferring Attending Provider responsibility may eventually make sense. But a consultation by itself is not the same as a transfer of care.

Maintaining this distinction can also improve continuity. The provider who has followed the worker throughout the claim remains familiar with the worker's history, work restrictions, treatment response, and return-to-work plan while obtaining additional expertise when necessary.

What About Physical Therapy, Occupational Therapy, or Massage Therapy?

Not every referral involves a physician specialist.

Physical therapy or occupational therapy may be useful when the worker needs additional rehabilitation directed toward strength, endurance, mobility, functional capacity, or job-related activities. Massage therapy may also be appropriate as part of treatment for certain musculoskeletal injuries.

For State Fund claims, L&I currently allows the first 12 outpatient physical or occupational therapy visits without prior authorization when the applicable requirements are met. Visits 13 through 24 require authorization, and treatment beyond 24 visits requires utilization review. For massage therapy, the first six visits generally do not require authorization, while additional treatment requires authorization under L&I's applicable rules.

These services should still be part of an overall treatment strategy rather than simply added because recovery is taking longer than expected. The goal should be to address an identifiable functional problem and help the worker progress toward normal activities and work.

What If the Worker Is Not Improving?

A stalled recovery should prompt reassessment.

Sometimes the original diagnosis remains correct and the worker simply needs additional time or a modification in rehabilitation. In other cases, persistent symptoms may indicate that something has been missed or that another factor is interfering with recovery.

The provider may need to reconsider the diagnosis, repeat portions of the examination, obtain imaging, request another clinical opinion, modify treatment, or refer the worker to another provider.

L&I also recognizes consultation as an appropriate resource when there is diagnostic uncertainty, difficulty with treatment planning, stalled progress, or questions about advanced imaging or specialist referral.

The answer is not necessarily to order every available test. It is to determine why the expected recovery is not occurring and whether additional information would change the treatment plan.

A Specialist Consultation Is Different From an IME

Workers are sometimes confused about the difference between a specialist consultation and an Independent Medical Examination (IME).

A specialist consultation is part of the worker's clinical care. The Attending Provider may request another provider's opinion about the diagnosis, imaging, treatment options, or prognosis.

An IME has a different purpose. It is arranged by L&I or the self-insured employer to answer specific questions about the claim. The worker's treating provider cannot independently schedule an IME in the same way that he or she can refer the worker for a specialist consultation.

Although both involve another provider evaluating the worker, they serve different roles within the workers' compensation system.

Coordinating Care Is Part of Managing an L&I Claim

Being the Attending Provider does not mean that one provider must personally deliver every aspect of care.

The Attending Provider's role includes recognizing when another provider's expertise is needed, coordinating appropriate referrals, reviewing the resulting information, documenting the worker's progress, addressing work restrictions, and adjusting the treatment plan as the injury evolves.

For uncomplicated injuries, that process may remain relatively simple. For more complicated claims, appropriate imaging and timely referrals can help clarify the diagnosis and prevent a worker from remaining in an ineffective treatment plan simply because no one has reconsidered what may be causing the persistent symptoms.

At Advanced Chiropractic & Massage, we treat Washington L&I work injuries at our Everett and Lynnwood offices and can serve as the Attending Provider for appropriate musculoskeletal claims. When an injury requires additional evaluation, we can coordinate advanced imaging, rehabilitation, or referral to an appropriate medical specialist while continuing to help manage the worker's recovery and return to work.