MedicaidBilling CodesHigh impact
Anesthesia Coverage for PWUCH Members
Arkansas Medicaid·AR · Anesthesiology, OB-GYN·Provider Notice
Effective date
Sep 22, 2026
We identified it
Sep 24, 2026
Summary
Effective September 22, 2026, anesthesiologists billing Arkansas Medicaid (PWUCH members) must append modifier U1 to seven specific anesthesia procedure codes for pregnant women and unborn child global obstetrical coverage. This is an informational modifier that does not affect reimbursement rates but requires accurate code selection and modifier application for all obstetric anesthesia services.
Action Required
By September 22, 2026: Billing team must update billing software to require modifier U1 on all claims using anesthesia codes 01960, 01961, 01962, 01963, 01965, 01966, and 01967 when billing PWUCH members. Anesthesiologists must verify patient eligibility for PWUCH coverage before submitting claims. Update encounter templates and billing documentation to remind providers to select the correct PWUCH-specific procedure code (not standard anesthesia codes) and ensure modifier U1 is automatically appended in the billing system. For codes 01962, 01963, and 01966, confirm that prior authorization has been obtained as indicated by the 'Med Rev' column requirement. Failure to use the correct PWUCH codes with modifier U1 may result in claim denials or delays. Contact Arkansas Foundation for Medical Care at 1-800-426-2234 (toll-free, inpatient/prior auth) or (479) 649-8501 for prior authorization questions.