Arizona emergency department billing services
Professional ER billing for emergency medicine groups in Arizona: MDM-based 99281-99285 levels, critical care time, modifier 25, payer enrollment and No Surprises Act claims, built on the Arizona payer rules verified below.
What changes an ER claim in Arizona.
Every Arizona rule on file, each linked to its primary source: state surprise-billing law, Medicaid ER policy, Medicaid managed care, the Blue plan and the Medicare contractor.
| Rule type | Date | What it says | Source |
|---|---|---|---|
| State surprise-billing law | Jan 2019 | Arizona SOON law (ARS 20-3111 to 20-3122): an enrollee in a state-regulated plan billed by a non-contracted ER provider at a network facility can request DIFI arbitration within 1 year of service if the amount owed after cost share and insurer payment is at least $1,000. | Source |
| Medicaid ER policy | Apr 2026 | AHCCCS Federal Emergency Services (emergency-only) claims: CMS-1500 billers must check the emergency box (24C); every claim is reviewed case by case and must include ER records supporting the emergency, or it can be denied or recouped. | Source |
| Medicaid managed care | Jul 2026 | Arizona Complete Health (AHCCCS Medicaid, also Medicare and Marketplace) policy CC.PP.076, effective 7/1/2026, reviews professional ED E/M claims against claim history and the facility claim and can reduce an overcoded 99284/99285 down to 99283; claims are reduced, not denied. | Source |
| Blue plan | Feb 2024 | BCBSAZ Emergency Department Leveling Guideline (effective 2/1/2024) covers physicians as well as facilities: professional 99281-99285 level must match documented MDM, bill with POS 23, and ED services not coded to the guideline are not eligible for reimbursement. | Source |
| Medicare contractor | Jul 2026 | Medicare Part B professional ER claims go to Noridian Healthcare Solutions, A/B MAC Jurisdiction F (JF); CMS re-awarded JF to incumbent Noridian in August 2025. | Source |
How we bill Arizona ER visits.
The same four-step workflow we run for emergency medicine and hospitalist groups billing from their hospital system.
Hospital feed and registration
Demographics, insurance and the attending physician arrive from the hospital system daily. Gaps go back to registration as clarification requests, not guesses.
MDM levels and critical care minutes
ED visits 99281-99285 are coded on medical decision making only. Critical care is 99291 for 30 to 74 minutes and 99292 from 104 total minutes, on documented time.
Modifier 25 and enrollment check
A separately identifiable E/M on the day of a procedure carries modifier 25 with its own documentation. The rendering physician is checked against the payer roster before release.
Submission, remit and NSA/IDR
Professional claims go out with place of service 23. Out-of-network ER claims follow the No Surprises Act: in-network cost share only, open negotiation, then federal IDR.
FAQ: ER billing in Arizona.
Does Arizona have a state surprise billing law for ER care?
Arizona SOON law (ARS 20-3111 to 20-3122): an enrollee in a state-regulated plan billed by a non-contracted ER provider at a network facility can request DIFI arbitration within 1 year of service if the amount owed after cost share and insurer payment is at least $1,000.
What does Arizona Medicaid require for ED visits?
AHCCCS Federal Emergency Services (emergency-only) claims: CMS-1500 billers must check the emergency box (24C); every claim is reviewed case by case and must include ER records supporting the emergency, or it can be denied or recouped.
How do Arizona Medicaid managed care plans handle ER claims?
Arizona Complete Health (AHCCCS Medicaid, also Medicare and Marketplace) policy CC.PP.076, effective 7/1/2026, reviews professional ED E/M claims against claim history and the facility claim and can reduce an overcoded 99284/99285 down to 99283; claims are reduced, not denied.
What is the Arizona Blue plan policy on ER claims?
BCBSAZ Emergency Department Leveling Guideline (effective 2/1/2024) covers physicians as well as facilities: professional 99281-99285 level must match documented MDM, bill with POS 23, and ED services not coded to the guideline are not eligible for reimbursement.
Which Medicare contractor processes Arizona ER professional claims?
Medicare Part B professional ER claims go to Noridian Healthcare Solutions, A/B MAC Jurisdiction F (JF); CMS re-awarded JF to incumbent Noridian in August 2025.
Nearby ER billing state guides.
Neighbouring state pages with their own verified ER payer rules.