Having your Chiropractic Treatment and Spinal Manipulation denied by insurance is frustrating, but you have legal rights and a strong path to overturn the denial. Approximately 40-60% of insurance denials are overturned on appeal when patients submit comprehensive documentation and cite applicable laws. This guide walks you through exactly why chiropractic care claims get denied, what medical necessity criteria major insurers apply, and how to build the strongest possible appeal.
Important Disclaimer
This guide is for informational purposes only and does not constitute legal or medical advice. Insurance coverage rules vary by plan type, state, and individual circumstances. Consult with a patient advocate, healthcare attorney, or your state Department of Insurance for advice specific to your situation. Information current as of 2026-03-28.
Why Chiropractic Care Gets Denied by Insurance
Chiropractic Care denials typically fall into specific, predictable patterns. Understanding the exact reason for your denial is the first step to building an effective appeal. The most common denial reasons for Chiropractic Treatment and Spinal Manipulation include:
- Reason 1: Visit limit exceeded — most plans cap chiropractic visits at 12-30 per year
- Reason 2: Treatment deemed maintenance care rather than active corrective treatment
- Reason 3: Lack of documented functional improvement between visits
- Reason 4: Diagnosis does not meet criteria for chiropractic coverage under the plan
- Reason 5: Services considered not medically necessary after a specified treatment period
Your Explanation of Benefits (EOB) or denial letter should include a specific reason code. Match that code to the reasons above to target your appeal effectively. If the denial letter is vague, you have the legal right to request the specific clinical criteria used to evaluate your claim.
Common Denial Codes for Chiropractic Care
Insurance companies use standardized codes to explain denials. Here are the codes most frequently associated with chiropractic care denials:
| Denial Code | What It Means |
|---|---|
| CO-119 | Benefit maximum for this time period reached |
| CO-50 | Not medically necessary |
| CO-96 | Non-covered charge — maintenance care |
| CO-150 | Documentation does not support continued treatment |
Understanding your specific denial code helps you tailor your appeal to address the exact basis for denial rather than making generic arguments. Request your complete claims file if the denial codes are not clear from your EOB. Use our EOB Decoder tool to understand your denial documentation.
Medical Necessity Criteria for Chiropractic Care
Chiropractic coverage varies widely. Medicare covers chiropractic manipulation of the spine (CPT 98940-98942) to correct subluxation when documented by X-ray or clinical findings, but does not cover maintenance care. Most commercial plans cover 12-30 visits annually with prior authorization for extended treatment. Insurers distinguish between active corrective care (covered) and maintenance or preventive care (typically not covered). UnitedHealthcare requires documentation of subluxation, treatment plan with specific goals, and evidence of functional progress. The key to approval is demonstrating measurable improvement and establishing that continued treatment serves a corrective rather than maintenance purpose.
Key Takeaway
Each insurer applies different medical necessity criteria for chiropractic care. Request your specific insurer's medical policy for this procedure. The criteria they use must be disclosed to you upon request, and your appeal should address each criterion point by point.
Step-by-Step Appeal Process for Chiropractic Care
Step 1: Request the Complete Written Denial
Contact your insurer and request the full written denial including the specific clinical criteria used, the reviewer's credentials, and your appeal rights and deadlines. Under ACA Section 2719, you are entitled to this information. Keep a log of every communication with your insurer — dates, names, reference numbers.
Step 2: Obtain Your Complete Medical Records
Request all records relevant to your chiropractic care claim from every provider involved. Under HIPAA, you are entitled to your complete medical records. Focus on documentation that directly addresses the denial reason.
Step 3: Get a Letter of Medical Necessity from Your Provider
Ask your treating physician to write a detailed letter explaining exactly why Chiropractic Treatment and Spinal Manipulation is medically necessary for your specific condition. The letter should reference the insurer's specific medical policy criteria and address each requirement. A generic letter is far less effective than one that directly responds to the denial reason.
Step 4: Gather Supporting Clinical Evidence
Collect clinical practice guidelines from relevant medical societies, peer-reviewed research supporting the procedure for your diagnosis, and any applicable insurer-specific policy bulletins. Evidence from the same clinical guidelines the insurer references is particularly powerful.
Step 5: Write and Submit Your Appeal
Your appeal should cite specific laws (ACA Section 2719, ERISA Section 503 if applicable, and relevant state laws), address the exact denial reason with point-by-point rebuttal, include all supporting documentation, and request a specific outcome (approval of the denied service). Submit by certified mail or through the insurer's online portal with delivery confirmation.
Step 6: If Denied, Escalate to External Review
If your internal appeal is denied, you have the right to an external review by an Independent Review Organization (IRO) under the ACA. The external reviewer is independent of the insurer and makes a binding determination. External review must be requested within 4 months of the internal appeal denial in most states. For urgent situations, expedited external review must be decided within 72 hours.
Sample Appeal Letter Language for Chiropractic Care
Sample Appeal Excerpt
I appeal the denial of chiropractic treatment, claim [X]. The patient is undergoing active corrective care for [diagnosis], not maintenance therapy. Objective findings from evaluation on [date] demonstrate [specific subluxation/functional deficit]. Treatment plan goals include [specific measurable goals]. Progress since treatment initiation shows [specific improvements: range of motion increased from X to Y degrees, pain scale decreased from X to Y, functional capacity improvements]. Continued treatment is necessary to achieve [specific remaining goals] before transitioning to self-management.
Customize this language with your specific details — claim numbers, dates, provider names, and clinical findings. A personalized appeal that addresses the specific denial reason is significantly more effective than a generic template. Use our free appeal letter generator to build a complete letter.
Supporting Documentation to Strengthen Your Appeal
For chiropractic care appeals, gather the following documentation before submitting:
- Initial examination with objective findings (subluxation, ROM deficits, functional tests)
- Treatment plan with specific, measurable, time-bound goals
- Re-evaluation notes showing progress toward goals
- Functional outcome measures at baseline and current
- Radiographic documentation of subluxation if applicable
- Referring physician's recommendation if available
Organize your documentation clearly with a cover page listing all enclosed items. Number each exhibit and reference them specifically in your appeal letter. Incomplete or disorganized submissions are easier for insurers to deny.
Success Rate and Tips for Chiropractic Care Appeals
While specific success rates vary by insurer and clinical scenario, data from state insurance regulators suggests that 40-60% of medical necessity denials are overturned when patients pursue a comprehensive appeal. For chiropractic care specifically, the following strategies may improve your chances:
- Document measurable progress at every re-evaluation using standardized outcome measures
- Clearly distinguish your treatment from maintenance care by establishing corrective goals
- If visit limits are the issue, request an exception with documentation of ongoing medical necessity
- Include a treatment plan with a projected end date to demonstrate finite, goal-directed care
The single most important factor in appeal success is the quality and specificity of your documentation. Generic appeals fail. Appeals that address the exact denial reason with targeted clinical evidence succeed at much higher rates.
Check your appeal deadline to ensure you file within the required timeframe. Missing the deadline may forfeit your appeal rights entirely.
Frequently Asked Questions
How many chiropractic visits does insurance cover?
Most commercial plans cover 12-30 chiropractic visits per year, though limits vary significantly by plan. Some plans have no visit cap but require ongoing authorization. Medicare covers chiropractic manipulation of the spine without a specific visit limit, but only for active treatment of subluxation — not maintenance care. Check your plan's Schedule of Benefits for the specific chiropractic visit limit. If you have reached your limit but still need treatment, appeal for an exception based on documented medical necessity.
What is the difference between corrective and maintenance chiropractic care?
Corrective care aims to improve a specific condition — reducing pain, restoring range of motion, improving functional capacity. It has measurable goals and a projected endpoint. Maintenance care aims to preserve current function and prevent recurrence, without expectation of further improvement. Most insurers cover corrective care but not maintenance. The distinction depends on documentation: if your chiropractor documents measurable progress toward specific goals, it is corrective. If progress has plateaued and treatment continues at the same frequency, insurers may classify it as maintenance.
Does Medicare cover chiropractic care?
Medicare covers manual manipulation of the spine by a chiropractor for documented subluxation. Subluxation must be documented by X-ray or physical examination findings. Medicare does not cover chiropractic maintenance therapy, X-rays ordered by the chiropractor, or other chiropractic services such as physical therapy modalities. The coverage is limited to CPT codes 98940-98942 for spinal manipulation. All other services provided during the same visit may be billed to the patient.
Can I appeal a chiropractic denial for maintenance care classification?
Yes. Appeal by documenting that treatment is still corrective — show objective measurements that improvement is continuing, reference specific functional goals that have not yet been met, and provide your chiropractor's assessment that further improvement is expected with continued treatment. Include standardized outcome measures showing that you have not yet reached maximum therapeutic benefit. If your condition genuinely requires ongoing care to prevent deterioration, some plans cover limited maintenance under specific circumstances.
What outcome measures should my chiropractor document?
Effective documentation includes Visual Analog Scale (VAS) or Numerical Pain Rating Scale scores, range of motion measurements in degrees, functional capacity evaluations, Oswestry Disability Index (ODI) for low back conditions, Neck Disability Index (NDI) for cervical conditions, and Patient-Specific Functional Scale scores. These standardized measures provide objective evidence of progress that is difficult for insurers to dismiss. Request that your chiropractor include these measurements at every re-evaluation.
Sources: ACA Section 2719 · ERISA Section 503 · No Surprises Act · CMS regulations · State insurance codes · Clinical practice guidelines. Disclaimer: This article is for informational purposes only. Coverage rules vary by plan type and state. Consult a patient advocate or healthcare attorney for advice specific to your situation. Last updated: 2026-03-28.