Chiropractic Billing and Insurance: Complete Guide for 2026

Core Chiropractic CPT Codes

The majority of chiropractic billing is built around the spinal manipulation CPT code family (98940-98943) and the evaluation and management codes for initial and follow-up visits. Understanding which codes apply in which circumstances is the foundation of accurate chiropractic billing.

CPT Code	Description	Typical Use
98940	Spinal manipulation, 1-2 regions	Focused treatment of a limited area; lower reimbursement
98941	Spinal manipulation, 3-4 regions	Most common code for general chiropractic visits
98942	Spinal manipulation, 5 regions	Full spine treatment; highest manipulation reimbursement
98943	Extraspinal manipulation	Extremity adjustments (shoulder, knee, ankle, etc.)
99202-99205	New patient office visit (E&M)	Initial evaluation and history; billed in addition to manipulation on first visit
99212-99215	Established patient office visit (E&M)	Re-evaluation visits; billed in addition to manipulation when separately identifiable
97012	Mechanical traction	Traction table; billed when provided as a separate service
97110	Therapeutic exercises	Active exercise instruction; requires direct provider contact time
97140	Manual therapy techniques	Soft tissue work, joint mobilization (distinct from manipulation)

Spinal regions defined for 98940-98942: Cervical, thoracic, lumbar, sacral, and pelvic regions each count as one region. Cervical and thoracic together are two regions. Full spine manipulation covering all five areas warrants 98942.

Modifier use: When billing E&M codes on the same date as manipulation, use Modifier 25 to indicate a significant, separately identifiable evaluation and management service. Without Modifier 25, the E&M will be denied as incidental to the manipulation.

Medicare Chiropractic Billing Rules

Medicare chiropractic billing has specific rules that differ significantly from commercial insurance and that are a major source of denials for practices that don't understand them.

The AT Modifier Requirement

Medicare only covers chiropractic services for the manual manipulation of the spine to correct a subluxation. This is a narrower coverage definition than most commercial payers. Every Medicare chiropractic manipulation claim must include the AT modifier (active/curative treatment) to indicate the service is for active treatment, not maintenance care.

Medicare does not cover maintenance chiropractic care. If a patient has plateaued and further treatment is for maintenance only, Medicare will not pay regardless of how the claim is billed. Billing maintenance care with the AT modifier constitutes fraud.

Medicare Coverage Requirements

To be Medicare-covered, chiropractic manipulation must:

• Be directed at correction of a subluxation documented in the medical record
• Demonstrate expectation of improvement (active treatment phase)
• Be reasonable and necessary for the patient's condition
• Not be maintenance care once maximum therapeutic benefit has been achieved

Advance Beneficiary Notice (ABN)

When you believe Medicare will deny a service (because it's maintenance care or otherwise non-covered), you must provide the patient with an Advance Beneficiary Notice (ABN) before providing the service. The ABN informs the patient that Medicare likely won't pay and that they will be personally responsible. Without a properly completed ABN, you cannot collect from the patient for non-covered services.

What Medicare Does Not Cover

• Evaluation and management services (99202-99215) billed by chiropractors — Medicare does not cover chiropractic E&M codes
• Physiotherapy services (electrical stimulation, ultrasound, etc.) billed by chiropractors under Medicare Part B
• Maintenance care (once the patient has reached maximum therapeutic benefit)
• X-rays ordered by a chiropractor for chiropractic purposes

Commercial Insurance: What to Expect

Commercial payer chiropractic coverage varies enormously and is a frequent source of billing surprises for practices.

Visit limits: Most commercial plans impose annual visit limits for chiropractic — commonly 20-26 visits per year, though this varies by plan. Verify visit limits during insurance verification at every new episode of care and track utilization per patient against their benefit cap.

Prior authorization: Many commercial plans require prior authorization for chiropractic beyond the initial few visits (typically after 6-10 visits). Failing to obtain authorization for visits 7+ is a leading cause of retrospective denials that are nearly impossible to recover. Know each major payer's authorization trigger and build it into your scheduling workflow.

Copay vs. coinsurance: Chiropractic benefits vary significantly by plan tier. A patient's plan may cover chiropractic in full after deductible, at 80/20 coinsurance, or with a flat copay. Collect at time of service based on verified benefits — don't wait for the EOB.

Coverage for adjunctive services: Physical therapy codes (97110, 97140, 97012) are frequently covered under chiropractic benefits when performed by a chiropractor. However, some plans carve chiropractic and physical therapy into separate benefit buckets. Always verify which benefit applies to adjunctive services specifically.

Common Chiropractic Billing Denials

Chiropractic practices face a specific set of recurring denial patterns:

Missing AT modifier on Medicare claims: Any Medicare manipulation claim submitted without the AT modifier will deny. This is a simple fix but a common one, especially when staff turn over.

Medical necessity denial: "Services not medically necessary" is the most common denial type in chiropractic. Payers' clinical review algorithms flag claims where the documentation doesn't clearly establish acute or subacute presentation, expected improvement, or functional limitations. Maintenance care language in notes is an automatic flag.

Visit limit exceeded: Claim submitted after the patient has used their annual chiropractic benefit visits. Requires a benefits verification workflow that tracks visits per patient against their plan limit in real time.

Authorization not obtained: Chiropractic prior auth requirements are enforced strictly by most commercial payers. A denial for missing authorization on visit 8 when authorization was only obtained for visits 1-7 is non-recoverable in most cases.

Modifier 25 missing on E&M same day as manipulation: When billing an initial evaluation or re-evaluation on the same date as a manipulation, Modifier 25 must be present on the E&M code or the E&M will be bundled into the manipulation and denied.

Upcoding — 98942 without documentation supporting 5 regions: Billing 98942 (5 regions) when documentation only supports 3-4 regions treated is a common audit trigger. The chart note must specifically document which regions were treated.

Documentation Standards That Prevent Denials

Chiropractic documentation is held to the same medical necessity standard as other specialties, but payers apply it strictly. Every note should include:

• Chief complaint with specific pain location, severity (VAS or numeric scale), and duration
• Functional limitations — what the patient cannot do because of the condition (not just pain severity)
• Objective findings: range of motion measurements, palpation findings, orthopedic test results
• Assessment: diagnosis with specific ICD-10 code, clinical rationale for manipulation, and regions treated (to support CPT code selection)
• Plan: expected number of visits to reach maximum therapeutic benefit, re-evaluation schedule, and home care instructions
• Progress: objective change since last visit — same-complaint SOAP notes that show no functional improvement will trigger medical necessity review

The most important documentation principle for chiropractic: show functional improvement, not just pain reduction. Payers can deny maintenance care when pain is managed but function isn't improving. Document what the patient can do today that they couldn't do at the start of care.

In-Network vs. Cash Practice Decision

This is the most significant strategic decision in chiropractic practice management, and the right answer depends on your market, patient demographics, and personal values.

In-Network Practice

Advantages: Larger accessible patient population, reduced patient price sensitivity, referrals from insurance directories, lower marketing cost per new patient.

Disadvantages: Reimbursement rates often 30-50% below fee schedule. Visit limits constrain treatment duration. Prior authorization burden adds administrative cost. Medical necessity denials are an ongoing revenue risk.

Cash-Only (Membership or Direct Pay) Practice

Advantages: No visit limits, no prior auth, no medical necessity denials. Full fee schedule collected. Simpler billing operations. Treatment decisions driven by clinical need, not insurance coverage.

Disadvantages: Significantly smaller addressable patient population — many patients won't pay out-of-pocket for chiropractic when they have coverage. Requires stronger marketing to attract cash-pay patients. Revenue per patient is higher but volume may be lower.

Hybrid Model

Many chiropractors participate with major commercial payers (Blue Cross, Cigna, Aetna) for acute care while offering cash-pay memberships for maintenance and wellness care that insurance won't cover. This hybrid captures the in-network patient volume for acute episodes while retaining the relationship for long-term maintenance revenue.

Chiropractic Billing Software

Purpose-built chiropractic practice management software handles the specialty-specific documentation and billing workflows more efficiently than generic medical billing platforms.

Leading platforms in 2026:

• ChiroTouch — market leader; SOAP note templates, outcome tracking, insurance billing, patient portal. Cloud-based version available.
• Jane App — popular in Canada and growing in the US; clean interface, strong scheduling, good for smaller practices
• DrChrono — general medical EHR with chiropractic templates; better for practices that also bill E&M to medical payers
• Platinum System — built specifically for chiropractic; strong at high-volume insurance billing

Evaluate platforms on: SOAP note efficiency, spinal region tracking for CPT code selection, insurance billing integration, Medicare compliance features, and outcome measurement tools.

In-House vs. Outsourced Billing for Chiropractic

Chiropractic billing has enough specialty-specific complexity — Medicare AT modifier rules, visit limit tracking, prior auth workflows, medical necessity appeals — that many smaller practices benefit from outsourcing to a chiropractic-specialized billing company rather than training a generalist biller.

Consider outsourcing if your collection rate (payments received divided by adjusted charges) is below 90%, if your initial denial rate exceeds 8%, or if your internal biller lacks experience with Medicare chiropractic rules specifically.

See our Medical Billing partner directory for chiropractic-specialized billing vendors, and our Medical Billing Cost Guide for current pricing benchmarks.

Frequently Asked Questions

Does Medicare cover chiropractic care?

Medicare Part B covers chiropractic manipulation for the correction of subluxation when it is active (curative) treatment and not maintenance care. The AT modifier is required on every Medicare chiropractic manipulation claim. Medicare does not cover chiropractic E&M codes, physiotherapy services, or maintenance care.

What is the AT modifier in chiropractic billing?

The AT modifier (active/curative treatment) is required on all Medicare chiropractic spinal manipulation claims to indicate the service is for active treatment, not maintenance. Claims submitted without the AT modifier will be denied. Applying the AT modifier to maintenance care constitutes Medicare fraud.

What is the difference between CPT 98940, 98941, and 98942?

These codes are differentiated by the number of spinal regions treated: 98940 is 1-2 regions, 98941 is 3-4 regions, and 98942 is 5 regions (all spinal regions). The documentation must specifically state which regions were treated to support the billed code. The five spinal regions are cervical, thoracic, lumbar, sacral, and pelvic.

Can chiropractors bill E&M codes?

Yes, for commercial insurance — chiropractors can bill E&M codes (99202-99215) for initial evaluations and re-evaluations. When billing E&M on the same date as manipulation, Modifier 25 is required on the E&M to prevent bundling denial. Medicare does not cover E&M services billed by chiropractors.

Should I accept insurance or run a cash-only chiropractic practice?

This depends on your market and patient demographics. In most suburban markets, in-network participation with major commercial payers provides access to a significantly larger patient population. Cash-only practice works in markets with high-income demographics, or as a hybrid model where insurance covers acute care and cash memberships cover maintenance. Model both scenarios against your market's population and competitive landscape before deciding.

Related Resources

• Medical Billing Services Cost Guide — Current pricing benchmarks for billing vendors
• How to Reduce Claim Denials — Denial prevention strategies for any practice
• Outsource vs. In-House Billing — Full cost and ROI comparison
• Billing Audit Checklist — Review your billing performance
• Browse Medical Billing Partners

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Last updated: March 2026 | Author: Bryan, Practice Success Team