Chiropractic billing is deceptively simple in procedure volume but operationally complex in documentation requirements — particularly for Medicare. AT modifier compliance, subluxation documentation, and active vs. maintenance care distinctions must be handled precisely to avoid denials and audit risk.
Common Billing Challenges
These are the billing failure points we see most often in chiropractic practices — and the ones our team resolves systematically from day one.
Manipulation codes 98940 (1-2 regions), 98941 (3-4 regions), 98942 (5 regions) are determined by the number of spinal regions treated. Over-reporting regions to bill higher codes is the #1 chiropractic audit trigger — documentation must clearly support the billed regions.
Medicare covers chiropractic manipulation only when the patient is under active treatment for subluxation correction (AT modifier). When care becomes maintenance (improvement has plateaued), Medicare no longer covers — and continuing to bill with AT modifier is a compliance violation.
Medicare requires documentation of subluxation through either an X-ray finding or specific clinical findings (listing, motor function, or pain/tenderness). Generic notes without specific subluxation documentation cause systematic Medicare denials.
Billing an E/M service (99202-99215) on the same day as a manipulation requires modifier 25 and documentation of a separately identifiable, medically necessary service beyond the routine manipulation encounter. Missing modifier 25 = automatic denial.
Commercial payers increasingly require functional outcome assessments (Oswestry, NDI) to support ongoing care. Without documented functional improvement trends, medical necessity for continued treatment is disputed.
Ultrasound (97035), electrical stimulation (97014/97032), and hot/cold pack application (97010) are frequently billed with manipulation — but each payer has different bundling rules, and some consider modalities included in the manipulation fee.
Key Procedure Codes
Our coders hold specialty-specific credentials and train continuously on the codes that drive the most revenue — and the most denials — in chiropractic.
| CPT Code | Description | Common Issue |
|---|---|---|
| 98941 | Spinal manipulation, 3-4 regions | Regions treated must be documented in SOAP note |
| 98942 | Spinal manipulation, 5 regions | Highest-audit code; all 5 regions must be documented |
| 97110 | Therapeutic exercise | Billable separately only if performed as distinct service |
| 97014 | Electrical stimulation, unattended | Bundling rules vary by payer — not always separately payable |
| 99213 | Office visit, established | Mod 25 required same day as manipulation; separate note |
| 72040 | X-ray, cervical spine | Subluxation documentation alternative to clinical findings |
Why RCMAXIS
We are not a generalist billing service that added a specialty module. Our team is built around specialty-specific expertise.
We track active vs. maintenance care status per patient and apply the AT modifier only when Medicare coverage criteria are met — protecting your practice from audit exposure.
Documentation audit templates ensure clinical notes capture specific subluxation findings that support Medicare coverage for every claim.
Our billing workflow cross-references the documented spinal regions against the billed manipulation code before every submission.
Systematic modifier 25 application for same-day E/M services with documentation checklist to ensure a separately identifiable service is recorded.
We help practices integrate outcome assessments into the documentation workflow — supporting medical necessity for commercial payer continued care requirements.
Payer-specific modality bundling rules are maintained in our rules library — preventing overbilling and ensuring separately billable services are captured correctly.
Free revenue assessment for qualified practices. We audit your last 90 days of claims, identify every revenue leak, and show you a clear path to better collections — at no cost.