Work Injury Therapy & Treatment Guide: California Workers' Comp (2026)
If you were injured at work in California, you are entitled to all reasonably necessary medical treatment under Labor Code §4600 -- including physical therapy, chiropractic care, surgery, pain management, and more. This guide explains every type of therapy available, how the authorization process works, and what to do if treatment is denied.
Types of Therapy Covered by Workers' Comp
California workers' compensation covers a broad range of therapeutic treatments. The specific therapies authorized for your case depend on your injury type, severity, and what the Medical Treatment Utilization Schedule (MTUS) guidelines recommend. Here are the most common treatment types.
Physical Therapy (PT)
Physical therapy is the most frequently prescribed treatment for work injuries. PT focuses on restoring strength, flexibility, and range of motion through targeted exercises, manual therapy, and modalities such as ultrasound, electrical stimulation, and heat/cold therapy. Workers' comp covers up to 24 PT visits per injury, with the option to request more through Utilization Review if medically necessary.
PT is commonly prescribed for back injuries, shoulder injuries, knee injuries, post-surgical rehabilitation, and repetitive strain conditions. Sessions typically last 45 to 60 minutes and occur two to three times per week. Your physical therapist must be within the employer's Medical Provider Network (MPN) or be an approved out-of-network provider.
Chiropractic Care
Chiropractic treatment focuses on spinal adjustments and musculoskeletal alignment. It is most commonly authorized for back pain, neck pain, and headaches caused by work injuries. California workers' comp covers up to 24 chiropractic visits per injury, and unlike PT, this cap cannot be exceeded through the workers' comp system.
Chiropractic care is effective for many acute and subacute musculoskeletal conditions. However, if you need long-term spinal care, your treating physician may transition you to physical therapy or pain management, which have different authorization pathways.
Occupational Therapy (OT)
Occupational therapy helps injured workers regain the ability to perform daily activities and job-specific tasks. OT focuses on hand and upper extremity rehabilitation, adaptive techniques, ergonomic modifications, and work conditioning. It is frequently prescribed for hand and wrist injuries, carpal tunnel syndrome, and upper extremity fractures. OT is covered under the same MTUS guidelines as PT, with up to 24 visits initially.
Pain Management
Pain management encompasses a variety of interventions for workers with chronic or severe pain that does not respond adequately to PT or medication alone. Common pain management treatments include:
- Epidural steroid injections: For disc herniations, spinal stenosis, and radiculopathy
- Facet joint injections: For facet arthropathy and chronic back/neck pain
- Nerve blocks: For neuropathic pain and complex regional pain syndrome (CRPS)
- Trigger point injections: For myofascial pain syndrome
- Spinal cord stimulation: For refractory chronic pain (requires extensive authorization)
- Medication management: Including non-opioid medications, muscle relaxants, and nerve pain medications
Each injection or procedure requires individual authorization through the UR process. Pain management physicians must follow the MTUS Chronic Pain Treatment Guidelines.
Psychological Treatment
Work injuries often cause depression, anxiety, PTSD, and sleep disorders. California workers' comp covers psychological treatment when it is a consequence of the physical injury. Cognitive behavioral therapy (CBT), medication management, and stress reduction techniques are commonly authorized. Up to 24 psychotherapy visits may be authorized initially, with additional visits available through UR if clinically indicated.
Understanding Medical Provider Networks (MPNs)
Most California employers participate in a Medical Provider Network -- a pre-approved list of doctors, therapists, and specialists who treat work injuries. Understanding how MPNs work is essential to getting the treatment you need.
MPN Rules You Need to Know
- 1. First 30 days: You must treat within the MPN (unless you pre-designated a personal physician)
- 2. After 30 days: You can switch to a different physician within the MPN
- 3. With an attorney: You can treat outside the MPN after the initial visit
- 4. Specialists: Your treating physician can refer you to any specialist within the MPN without additional authorization
- 5. Access standards: The MPN must have providers within 30 minutes or 15 miles of your home or workplace for primary care, and within 60 minutes or 30 miles for specialists
Choosing the Right Provider Matters
Not all MPN doctors are equal. Some are aggressive advocates for their patients; others tend to minimize injuries and release workers to full duty prematurely. Ask your attorney (or other injured workers) for recommendations. A good treating physician who thoroughly documents your condition and fights for necessary treatment can be worth tens of thousands of dollars to your case.
The Utilization Review (UR) Process
Every treatment request your doctor makes must go through Utilization Review -- the insurance company's process for determining whether the treatment is medically necessary under Labor Code §4610. Understanding UR is critical because it is the most common bottleneck in getting treatment.
| Request Type | Decision Deadline | Notes |
|---|---|---|
| Prospective (before treatment) | 5 business days | From receipt of request with supporting documentation |
| Urgent / Pre-authorization | 72 hours | For conditions requiring immediate treatment |
| Concurrent (during treatment) | 24 hours | For requests to extend inpatient care |
| Retrospective (after treatment) | 30 days | For treatment already provided |
Treatment Timelines by Injury Type
How long your treatment lasts depends on the type and severity of your injury. Below are typical timelines for common work injuries.
| Injury Type | Typical Treatment Duration | Common Therapies |
|---|---|---|
| Soft tissue sprain/strain | 4 - 12 weeks | PT, chiropractic, medication |
| Fracture (non-surgical) | 8 - 16 weeks | Immobilization, then PT |
| Fracture (surgical) | 12 - 26 weeks | Surgery, PT, OT, pain management |
| Disc herniation (conservative) | 12 - 24 weeks | PT, chiropractic, injections, medication |
| Spinal surgery recovery | 6 - 12 months | Surgery, PT, pain management, medication |
| Carpal tunnel (post-surgery) | 8 - 16 weeks | Surgery, OT, splinting |
| Shoulder surgery (rotator cuff) | 4 - 6 months | Surgery, PT (often 36+ sessions), OT |
| Knee surgery (ACL/meniscus) | 4 - 9 months | Surgery, PT (often 36+ sessions) |
What to Do If Treatment Is Denied
Treatment denials are frustratingly common in workers' comp. Insurance companies deny treatment requests through Utilization Review for many reasons -- sometimes legitimate, often not. If your treatment is denied, you have a clear path to challenge it.
Steps to Appeal a Treatment Denial
- 1. Read the denial letter carefully. It must state the specific medical reason for denial and cite the MTUS guideline relied upon.
- 2. Request Independent Medical Review (IMR) within 30 days of the denial under Labor Code §4610.5. Your doctor or attorney can file on your behalf.
- 3. Gather supporting documentation. Have your treating physician write a detailed letter explaining why the treatment is medically necessary and why the MTUS guidelines support it.
- 4. Wait for the IMR decision. An independent physician reviewer will decide within 30 days (or 3 days for urgent cases). This decision is binding on the insurance company.
- 5. If IMR denies, consult an attorney. In limited cases, WCAB can review IMR decisions for clear errors. An attorney can evaluate whether further appeal is worthwhile.
Do Not Accept Treatment Denials Without a Fight
Many injured workers give up when treatment is denied, assuming the insurance company has the final say. They do not. The IMR process exists specifically to protect you from improper denials. For detailed information on medical treatment coverage, see our comprehensive FAQ on covered medical treatment.
Tips for Maximizing Your Treatment
- Attend every appointment. Missed appointments give the insurance company ammunition to argue you do not need treatment or are not taking your recovery seriously.
- Follow your doctor's orders exactly. Compliance with home exercise programs, medication schedules, and work restrictions demonstrates your commitment to recovery and strengthens your case.
- Document everything. Keep a log of your symptoms, pain levels, and how the injury affects your daily life. This documentation supports treatment requests and settlement negotiations.
- Communicate openly with your treating physician. Tell your doctor about all symptoms, including new ones. Unreported symptoms cannot be treated and will not appear in your medical records.
- Know your rights. You are entitled to treatment that is reasonably necessary to cure or relieve the effects of your injury. Read about what happens in the first 48 hours after a work injury to make sure you start strong.
Estimate Your Claim Value
Your medical treatment is just one part of your overall workers' comp claim. Use our free settlement calculator to estimate the total value of your claim, including temporary disability, permanent disability, and future medical care.
Frequently Asked Questions
How many physical therapy sessions does workers' comp cover in California?
California workers' comp covers up to 24 physical therapy visits per injury under the Medical Treatment Utilization Schedule (MTUS). Your treating physician can request additional visits beyond 24 if medically necessary, but this requires prior authorization through Utilization Review (UR). If the UR reviewer denies additional visits, you can appeal through Independent Medical Review (IMR). Many serious injuries -- fractures, post-surgical cases, spinal injuries -- routinely receive approval for 36 to 48 or more sessions.
Can I choose my own doctor for a work injury in California?
It depends on whether you pre-designated a personal physician before your injury. If you filed a written pre-designation form with your employer naming your personal doctor before the injury occurred, you can treat with that doctor from day one. If you did not pre-designate, you must treat within your employer's Medical Provider Network (MPN) for the first 30 days. After 30 days, you can switch to any physician within the MPN. If you are unrepresented, you are limited to the MPN; if you hire an attorney, you can treat outside the MPN after the first visit.
Does workers' comp pay for chiropractic treatment?
Yes, California workers' comp covers chiropractic treatment, but it is capped at 24 visits per injury under Labor Code section 4604.5. This cap is firm -- unlike physical therapy, there is no mechanism to obtain additional chiropractic visits beyond 24 through workers' comp. Your chiropractor must be within the employer's MPN unless you pre-designated or have an attorney. Chiropractic care is most commonly authorized for back injuries, neck injuries, and certain joint conditions.
What is Utilization Review and how does it affect my treatment?
Utilization Review (UR) is the process by which the insurance company reviews your doctor's treatment requests to determine if they are medically necessary. Under Labor Code section 4610, the insurer must approve, modify, or deny treatment requests within 5 business days (or 72 hours for urgent requests). UR decisions must be based on the MTUS guidelines, not cost. If your treatment is denied through UR, you can appeal through Independent Medical Review (IMR), which is decided by an independent physician reviewer -- not the insurance company.
What should I do if my workers' comp treatment is denied?
If your treatment request is denied through Utilization Review, you have the right to appeal through Independent Medical Review (IMR) under Labor Code section 4610.5. Your treating physician should receive a written denial with the specific medical reason. To appeal, file an IMR application with the Division of Workers' Compensation within 30 days of the denial. An independent physician will review the case and make a binding decision. IMR overturns UR denials in roughly 20-25% of cases. If IMR also denies, your attorney can petition the WCAB for reconsideration in limited circumstances.
Need Help Getting Treatment Approved?
If the insurance company is denying or delaying your medical treatment, an attorney can intervene. We handle treatment disputes, IMR appeals, and ensure you get the care you are entitled to. Our free consultation will evaluate your situation and identify the best path to getting your treatment authorized.
Legal Disclaimer: This article provides general information about medical treatment under California workers' compensation. It is not legal advice. Treatment authorization, visit limits, and covered therapies depend on your specific injury, medical evidence, and MTUS guidelines. Contact our office for a free consultation about your specific treatment needs.
David Lamonica (State Bar #165205) has helped hundreds of injured workers navigate the treatment authorization process and fight insurance company denials. He understands the UR and IMR systems and knows how to get treatment approved.