Upcoded ER visit — when the level on the bill doesn't match the chart

What this looks like in practice

Emergency-department visits are billed at one of five levels (99281 = lowest, 99285 = highest), and the level is supposed to follow the documented complexity of the encounter — the History, Physical Exam, and Medical Decision-Making elements in the chart. The ER's billing department doesn't write the chart; the physician does. When billing software defaults to a higher level than the chart supports, or the abstractor misreads the documentation, the result is a higher charge than the encounter justifies. The pattern is well-documented enough that CMS publishes specific NCCI edits and the OIG has issued multiple audit reports on it.

The right benchmark is the chart, not the bill. Any patient (or their authorized representative under HIPAA) can request the medical record, compare what's documented to what's billed, and ask the hospital to recode the visit to the level the documentation supports.

How to spot it on a bill

• 01.The bill lists code 99284 or 99285 but the encounter felt routine — limited exam, single-system focus, no high-complexity decision-making.
• 02.Time spent with the physician was short relative to the level billed (Level 5 visits typically involve high-complexity decisions and extended physician time).
• 03.The medical record (which you have a federal right to obtain) doesn't include detailed history, exam findings, and complex decision-making documentation matching the level.

What to write — ready-to-paste language

Replace the bracketed fields with your specific details. Send by certified mail with return receipt, or via the hospital’s patient portal if it offers documented messaging. Keep a copy.

I'm requesting a coding review of the ER visit on [date]. The bill lists CPT [code] (Level [N]). Per CMS Pub. 100-04 Ch. 12 §30.6.1, the level must match the documented History, Exam, and Medical Decision-Making elements in the medical record. I have requested the chart for this encounter (HIPAA §164.524) and ask that you recode the visit to the level the documentation supports, and adjust the bill accordingly.

This is a starting point, not legal advice. Your specific situation may warrant additional details. Our audit drafts this letter automatically with your bill’s specifics filled in.

CPT codes commonly involved

These codes often appear in bills affected by this pattern. Click through for the federal benchmark price on each.

• CPT 99281
• CPT 99282
• CPT 99283
• CPT 99284
• CPT 99285

Related scenarios

• Unbundled charges — when one procedure gets billed as several

  Federal coding rules (NCCI edits) explicitly prohibit billing certain combinations of CPT codes together. When you see them on your bill, the federal benchmark gives you grounds to dispute.

• Wrong place-of-service code — facility billing for a non-facility visit

  Place-of-service codes determine whether Medicare and most insurance pay the higher facility rate or the lower non-facility rate. A code mismatch can inflate a bill substantially.

• Modifier-25 abuse — separate E/M billed alongside a procedure

  Modifier 25 lets a provider bill an office visit alongside a procedure on the same day, but only when the visit is a 'significant, separately identifiable' service. The OIG has repeatedly flagged inappropriate use.

• Observation vs. inpatient — billed under the wrong status

  Observation status looks like an inpatient stay to the patient (same room, same care) but bills under outpatient rules — which can mean much higher cost-share for Medicare beneficiaries and a denied SNF benefit.

• Annual physical billed as a sick visit

  Preventive visits (annual physicals, well-child checks) are required by the ACA to be $0 cost-share when in-network. When the same visit gets coded with a diagnostic code, you may owe a copay or coinsurance you weren't expecting.

• Anesthesia time billed in excess of documented minutes

  Anesthesia bills are calculated by time units. Each 'unit' is 15 minutes of documented anesthesia time, plus base units for the case complexity. Time-unit inflation is a documented audit pattern.

Common questions