CommercialBilling CodesHigh impact
Notice of Processing issue with Chiropractic and Osteopathic Treatment Reimbursement Policy Coding Change
Blue Cross Blue Shield of North Dakota·ND · Chiropractic·Coding
Effective date
Jun 15, 2026
We identified it
Jul 4, 2026
Summary
Blue Cross Blue Shield of North Dakota (BCBSND) implemented new coding requirements for Chiropractic Manipulative Treatment (CMT) effective June 15, 2026. All CMT claims (codes 98940–98943) must now include a subluxation diagnosis code in the primary diagnosis field, and Medicaid Expansion claims require modifier AT appended to CMT codes. The payer has identified and will auto-adjust claims incorrectly denied between June 15–25, 2026 when subluxation codes were properly submitted.
Action Required
Immediate action required: (1) Billing team must update billing software to enforce subluxation diagnosis code in the primary diagnosis field for all CMT codes 98940–98943 on BCBSND claims. (2) For Medicaid Expansion claims, update system configuration to automatically append modifier AT to all CMT codes or add mandatory reminder to encounter forms requiring provider attestation. (3) Configure system rules to flag/deny any CMT claim without a subluxation primary diagnosis code for commercial BCBSND plans and any CMT claim without modifier AT for Medicaid Expansion BCBSND claims. (4) No provider action needed for claims already denied between June 15–25, 2026 with correct subluxation coding—BCBSND will auto-adjust. (5) Train billing and front-desk staff on new requirements and monitor claim rejections weekly. Contact BCBSND Provider Service (800-368-2312) or Medicaid Expansion line (833-777-5779) with questions.