Chronic back pain

80M Americans have chronic back pain. Exercise is first-line treatment per major clinical guidelines — and reimbursable through your HSA/FSA with a Letter of Medical Necessity.

The Quick Take

If you've been diagnosed with chronic back pain (ICD-10: M54.5), your HSA or FSA can reimburse:

• Gym/health club membership
• Personal training (strength + mobility focused)
• Pilates therapy
• Yoga therapy
• And more (see full list below)

The catch is documentation. Specifically, a Letter of Medical Necessity from your physician confirming that exercise is part of your treatment plan. Without it, FSA/HSA administrators reject most claims for fitness expenses. With it, most admin reimbursements process within 7-14 days of submission.

Why Exercise Is Medically Necessary for Chronic back pain

Exercise is first-line treatment per the American College of Physicians and American Academy of Family Physicians clinical guidelines. Stronger evidence base than opioids or surgery for most cases.

This isn't a stretch interpretation — it's standard medical practice. Your physician already knows it. The IRS already accepts it (under Publication 502, Section 213). HSA and FSA administrators already process it. The only thing missing for most patients is the right paperwork.

What's Reimbursable

With a properly documented Letter of Medical Necessity for chronic back pain, the following are typically covered by FSA/HSA:

Gym/health club membership. Documented when used as part of treatment for chronic back pain. Personal training (strength + mobility focused). Documented when used as part of treatment for chronic back pain. Pilates therapy. Documented when used as part of treatment for chronic back pain. Yoga therapy. Documented when used as part of treatment for chronic back pain. McKenzie method programs. Documented when used as part of treatment for chronic back pain. Aquatic exercise / pool membership. Documented when used as part of treatment for chronic back pain. Recumbent bike or treadmill (with justification). Documented when used as part of treatment for chronic back pain. Foam rollers, resistance bands. Documented when used as part of treatment for chronic back pain.

Reimbursement is determined by your specific FSA/HSA administrator. The most common administrators (HealthEquity, Optum Bank, Lively, Fidelity, WageWorks, Inspira) all process LMN-supported claims for these services.

What Documentation You Need

Your Letter of Medical Necessity should include:

1. Diagnosis: Chronic back pain (M54.5 (Low back pain))
2. Brief clinical history: How long you've had the condition, current treatment context
3. Recommended exercise/treatment: Specific (gym membership, personal training, etc.) — not vague ("exercise")
4. Why it's medically necessary: One or two clinical sentences justifying the recommendation
5. Duration: Typically 12 months
6. Physician credentials and signature: Name, NPI, signature, date

A clean, properly-formatted LMN takes your physician under a minute to review and sign — once it's prepared correctly. Most rejections happen at the LMN format level, not the medical necessity level.

How to Start

1. Confirm the diagnosis is on your medical record. Log into your patient portal — if you've been seen for chronic back pain in the last 12 months, you're set.
2. Prepare your packet. Clinical summary, draft Letter of Medical Necessity, and patient portal message. DoctorNoted builds all three in 5 minutes.
3. Send to your own primary care physician. Through your existing patient portal — no awkward calls.
4. Submit the signed letter to your FSA/HSA administrator along with your receipts.

Your packet is compliance-reviewed and delivered in under 1 hour — not days. Each one is built specifically for your condition and reviewed by our team before it reaches you. From there, your doctor reviews and signs (their pace, not ours), and your FSA/HSA admin processes the reimbursement on their schedule. Average annual reimbursement once your letter is on file: $1,500-$3,000.

Read the Full Guide

For a deeper walkthrough including step-by-step instructions, real reimbursement numbers, and common denial reasons, see our complete guide: How to Get Your Gym Membership Reimbursed If You Have Chronic back pain.

This page is for educational purposes only and is not medical, legal, or tax advice. Consult your physician about your specific health situation, your tax advisor about your tax situation, and your HSA/FSA administrator about reimbursement eligibility. DoctorNoted is not a medical provider and does not determine medical necessity — your physician retains full clinical discretion.