Chiropractic Medical Billing: Common Challenges and How to Solve Them

by | Posted: Mar 18, 2026 | AI/Artificial intelligence, Medical Coding

Efficient medical billing and coding play a crucial role in ensuring steady reimbursements and maintaining the financial health of chiropractic practices. However, several factors make chiropractic medical billing particularly challenging, from strict documentation requirements and complex coding rules to varying insurance coverage policies. Chiropractors must navigate payer-specific guidelines, especially when billing Medicare for spinal manipulation and related therapies. Even small errors in coding, modifier usage, or chiropractic insurance verification can cause claim denials and delays, leading to revenue loss.

Recent compliance reports indicate that chiropractic services continue to have one of the highest improper payment rates in Medicare. Much of this is linked to inadequate documentation or lack of proof that treatment is medically necessary. Centers for Medicare & Medicaid Services reported that 95.5% of improper payments for chiropractic services were due to insufficient documentation during a recent review period.

Understanding the common challenges in chiropractic medical billing and implementing effective solutions can help practices reduce administrative burdens and improve cash flow. By strengthening documentation processes, improving coding accuracy, and leveraging specialized chiropractic billing and coding services, clinics can optimize reimbursement and focus more on delivering quality patient care.

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How Chiropractic Billing Is Different from Other Medical Specialties

Chiropractic medical billing is distinct from other specialties because it requires specific physical manipulation codes, strict “medical necessity” thresholds for Medicare, and faces high audit scrutiny risk.

  • Nuanced medical necessity documentation: Chiropractors must document the presence of spinal subluxation and demonstrate that the care is part of active treatment aimed at improving the patient’s condition. Billing Medicare for chiropractic services is highly specific and limited compared to many other medical specialties. Under CMS chiropractic billing guidelines, Medicare Part B generally covers only manual manipulation of the spine to correct a subluxation when the treatment is considered medically necessary. Maintenance care (preventative or wellness adjustments) is typically not covered and requires a signed Advance Beneficiary Notice (ABN) from the patient.
  • Specialized codes: Clean claim submission in chiropractic medical billing depends largely on accurate coding. Chiropractors must document specific spinal subluxations (misalignments) and use unique chiropractic Spinal Manipulation (CMT) codes to report services based on the number of spinal regions treated.
  • With ICD-10, chiropractors can report diagnoses with greater specificity, especially when documenting spinal conditions such as subluxations and related musculoskeletal disorders. Using the correct ICD-10 codes helps support medical necessity, reduce claim denials, and ensure appropriate reimbursement.

    Chiropractors must also select the appropriate chiropractic procedure codes, from the CPT code range 98940–98942 for chiropractic manipulative treatment (CMT) of the spine and 98943 for extraspinal manipulation when applicable. In addition, correct use of modifiers is essential to accurately report the services provided.

    Incorrect use of ICD-10 codes, CPT codes, or modifiers can trigger chiropractic claim denials, payer audits, and compliance concerns, ultimately affecting practice revenue and reimbursement timelines.

  • Modifier use: Chiropractic billing requires the use of modifiers for providing additional information about a service or procedure without changing the basic CPT code. For example, chiropractors must use the AT modifier to indicate active treatment for Medicare patients. Claims submitted without this modifier are usually interpreted as maintenance therapy, which Medicare does not cover.

Navigating the billing process can be quite complex due these factors. Understanding the common challenges in chiropractic revenue cycle management is crucial to implement best practices to avoid errors, optimize billing compliance and increase revenue.

Common Challenges in Chiropractic Medical Billing

Here are the common billing challenges chiropractor face and strategies to overcome them:

Incorrect Use of Chiropractic CPT Codes

Incorrect use of chiropractic CPT codes can lead to upcoding — reporting a procedure code that represents a more complex or higher-paying service than what was actually performed. This can happen when the number of spinal regions treated or the complexity of the service is overstated.

For example, CPT code 98940 is used for CMT involving 1–2 spinal regions, while 98941 is reported for 3–4 spinal regions. If a chiropractor treats only two spinal regions but bills 98941, the claim would be considered upcoded. Similarly, submitting a claim using 98942 (for all five spinal regions – cervical, thoracic, lumbar, sacral, and pelvic) without proper documentation to support treatment of all five regions can trigger scrutiny from payers.

Upcoding is considered a serious compliance issue and can lead to claim denials, payer audits, repayment demands, and potential penalties.

To avoid upcoding risks, chiropractors must ensure that clinical documentation clearly supports the number of regions treated and the services billed. Regular coding reviews and staff training can also help maintain compliance and prevent costly billing errors.

Improper Reporting of Maintenance Therapy and Use of the AT Modifier

In chiropractic billing, the overuse or improper reporting of maintenance therapy can lead to claim denials and compliance concerns. Under Medicare guidelines, chiropractic services are covered only when they are part of active treatment intended to correct or improve a patient’s condition. Once a patient reaches maximum therapeutic benefit and care is provided mainly to maintain the current condition or prevent deterioration, it is considered maintenance therapy, which is generally not covered by Medicare.

Problems arise when maintenance care is billed as active treatment. Repeatedly billing chiropractic codes 98940-98942 with the AT modifier when the patient’s condition has already stabilized can trigger claim denials or chiropractic billing audits with payers. Accurate documentation supporting active treatment is essential to justify the use of the AT modifier and ensure compliant billing.

Failure to Justify Medical Necessity

Insurance payers require clear evidence that chiropractic services are medically necessary to diagnose or treat a patient’s condition. Claims may be denied or flagged if documentation shows repeated treatments without measurable improvement or a clear clinical rationale. Submitting ongoing claims for care that appears to be routine wellness or maintenance therapy can raise concerns about unnecessary billing.

Chiropractors should document measurable clinical outcomes, such as improvements in range of motion, pain levels, or functional ability, to support continued treatment. The documentation should clearly distinguish between active, medically necessary care and wellness or maintenance services.

ICD-10 Coding Errors

Errors in ICD-10 coding are a common issue in chiropractic billing and often occur when diagnosis codes are selected without sufficient clinical justification. Choosing a code based on intuition or general symptoms rather than documented clinical findings can lead to claim denials or compliance concerns. Each diagnosis must be supported by clear documentation in the patient’s chart notes and reflected in the treatment plan.

Accurate use of ICD-10-CM codes is essential for describing the patient’s condition and ensuring that the diagnosis appropriately supports the procedure codes billed. Health plans and regulatory guidelines require that diagnoses be valid, well-documented, and compatible with the services provided. Staying updated on ICD-10 coding guidelines and documenting the clinical rationale for each diagnosis can help chiropractic practices avoid coding errors and ensure proper reimbursement.

Insurance Verification and Coverage Limitations

Coverage limitations are a common challenge in chiropractic medical billing because many insurance plans restrict the type and duration of services they reimburse. For example, some payers cover only spinal manipulation while excluding other services commonly provided in chiropractic practices, such as massage therapy, physical therapy modalities, or wellness care. In addition, insurers may place limits on the number of covered visits or require clear documentation showing medical necessity for continued treatment.

Verifying a patient’s insurance coverage before each visit helps practices understand what services are covered and what portion of the cost the patient may be responsible for. It is also important to recheck coverage for returning patients who may have changed plans.

Confirming coverage details in advance and informing patients about what is covered and what may require self-payment, can help prevent billing issues later.

In addition to accurate recording of patient information and insurance details, practices should periodically review their contracts with payers to stay informed about policy updates, coverage changes, and filing deadlines. Staying aware of these factors helps practices adjust workflows, train staff when needed, and maintain smoother chiropractic insurance claims processing.

Frequent Claim Denials and Rejections

Claim denials are a widespread issue across healthcare. Industry data suggests that roughly 10–15% of medical claims are denied on first submission.

Frequent claim issues are a common challenge in chiropractic billing and can significantly disrupt practice revenue. These problems often arise from the errors: incorrect diagnosis or procedure codes, missing modifiers, incomplete documentation or lack of medical necessity, and failure to meet payer-specific guidelines,

Claims may also be rejected if required details such as the number of spinal regions treated. For example: A provider bills 98942 for treatment involving five spinal regions, but the clinical notes only document manipulation of three regions. Because the documentation does not support the code billed, the payer may deny the claim or request a downcode to 98941.

Even small mistakes during claim submission can delay reimbursement and increase administrative workload due to resubmissions and appeals. To reduce denials, chiropractic practices should ensure accurate coding, maintain detailed clinical documentation, and verify that claims meet the specific requirements of each payer before submission. Regular billing reviews and staff training can also help identify and correct recurring issues.

How Chiropractors Can Avoid Billing Errors

  • Ensure accurate documentation: Maintain detailed clinical notes that clearly support the diagnosis, treatment provided, and medical necessity.
  • Use correct CPT and ICD-10 codes: Select procedure and diagnosis codes that accurately reflect the services performed and the patient’s condition.
  • Apply modifiers correctly: Use modifiers such as AT only when documentation supports active treatment.
  • Verify insurance coverage before visits: Confirm covered services, visit limits, and payer requirements to prevent claim issues.
  • Stay updated on payer policies: Review payer guidelines and contract updates regularly to remain compliant with changing rules.
  • Conduct regular billing audits: Periodic reviews can help identify coding mistakes, documentation gaps, and recurring claim denials.
  • Train billing and coding staff: Ongoing education helps ensure the team understands current coding standards and payer requirements.

The Value of Professional Chiropractic Billing Support

Given these many challenges, implementing effective billing strategies is essential for revenue cycle success. From proper documentation to accurate chiropractic medical billing and coding in compliance with payer guidelines, every step in the billing process plays a role in securing timely reimbursement and avoiding costly errors. In this situation, outsourcing to an experienced medical billing company can be a practical solution for many clinics.

Leveraging chiropractic billing services can ensure proper coding, claim submission and adherence to payer guidelines to claim denials and ensure timely reimbursement. Experienced billing providers combine AI-assisted medical coding tools with the expertise of billing specialists to stay current with evolving coding rules and payer requirements. This approach helps ensure accurate code selection, proper modifier usage, and complete documentation support.

Manage complex chiropractic claims and reduce denials.

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Holding a CPC certification from the American Academy of Professional Coders (AAPC), Natalie is a seasoned professional actively managing medical billing, medical coding, verification, and authorization services at OSI.

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Natalie Tornese

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