MedicaidBilling CodesHigh impact
New Chiropractic and Osteopathic Treatments Policy
Blue Cross Blue Shield of North Dakota·ND · Chiropractic·Provider News
Effective date
Jun 15, 2026
We identified it
Jun 19, 2026
Summary
Blue Cross Blue Shield of North Dakota updated their chiropractic policy to include osteopathic treatments and now requires more specific diagnosis coding. Starting June 15, 2026, Medicaid Expansion claims must include modifier AT on all CMT codes or they will be denied.
Action Required
By June 15, 2026: Billing team must update system to automatically append modifier AT to all CMT codes (98940-98943) for Medicaid Expansion claims. Update encounter forms to remind providers that pain-only diagnoses are insufficient and must specify precise subluxation levels. Claims without modifier AT will be denied as non-covered.