Indiana emergency department billing services
Professional ER billing for emergency medicine groups in Indiana: MDM-based 99281-99285 levels, critical care time, modifier 25, payer enrollment and No Surprises Act claims, built on the Indiana payer rules verified below.
What changes an ER claim in Indiana.
Every Indiana 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 | Dec 2021 | CMS: Indiana has no specified state law setting the out-of-network rate, so the federal No Surprises Act IDR process applies to ER out-of-network payment disputes, and CMS directly enforces the provisions in Indiana. | Source |
| Medicaid ER policy | Jan 2024 | IHCP Emergency Services module (v7.0): physicians bill ED screening as 99281-99285 on CMS-1500; if screening shows no emergency medical condition, bill the office visit code instead. Emergency services have no FFS copay; Presumptive Eligibility Adult members owe $8 for nonemergency ED use. | Source |
| Medicaid managed care | Aug 2025 | MHS Indiana (2025 provider manual): ER claims, including CMS-1500 diagnosis fields, are checked against the State ED auto-pay diagnosis list; with no auto-pay match and no records attached, the claim can be paid at a screening fee. Send records on the first submission. | Source |
| Medicare contractor | Sep 2025 | Indiana Part B (professional) claims go to Wisconsin Physicians Service (WPS), A/B MAC Jurisdiction 8 (J8), which also covers Michigan. | Source |
How we bill Indiana 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 Indiana.
Does Indiana have a state surprise billing law for ER care?
CMS: Indiana has no specified state law setting the out-of-network rate, so the federal No Surprises Act IDR process applies to ER out-of-network payment disputes, and CMS directly enforces the provisions in Indiana.
What does Indiana Medicaid require for ED visits?
IHCP Emergency Services module (v7.0): physicians bill ED screening as 99281-99285 on CMS-1500; if screening shows no emergency medical condition, bill the office visit code instead. Emergency services have no FFS copay; Presumptive Eligibility Adult members owe $8 for nonemergency ED use.
How do Indiana Medicaid managed care plans handle ER claims?
MHS Indiana (2025 provider manual): ER claims, including CMS-1500 diagnosis fields, are checked against the State ED auto-pay diagnosis list; with no auto-pay match and no records attached, the claim can be paid at a screening fee. Send records on the first submission.
Which Medicare contractor processes Indiana ER professional claims?
Indiana Part B (professional) claims go to Wisconsin Physicians Service (WPS), A/B MAC Jurisdiction 8 (J8), which also covers Michigan.
How are emergency department visit levels chosen in Indiana?
By medical decision making only. CMS states that for emergency department visits practitioners use MDM, not time, to select 99281-99285, so the note must carry the problems addressed, the data reviewed and the risk of management.
Nearby ER billing state guides.
Neighbouring state pages with their own verified ER payer rules.