Federal IDR outcomes: Emergency medicine and emergency departments in Arizona
In 2025 Q1–Q4, the provider or facility offer prevailed in 82.7% of 177,255 determined Federal IDR dispute line items for emergency medicine and emergency departments in Arizona. The median prevailing offer was 3.42x the QPA (25th–75th percentile 2.01x–7.31x; n = 132,797). The median time to a decision was 41 business days (n = 177,255).
Determined line items
177,255
2025 Q1–Q4 · 182 split decisions excluded
Provider win rate
82.7%
n = 177,255 · 2025 Q1–Q4
Median payment vs QPA
3.42x
middle half 2.01x–7.31x · n = 132,797 · 2025 Q1–Q4
Median days to decision
41
business days, from dispute initiation · n = 177,255 · 2025 Q1–Q4
Dollar amounts are not shown for specialty groups: the CMS QPA and Offers file, the only source of dollar figures, has no specialty field. See methodology.
By period
| Period | Line items | Win % | Median ×QPA | 25th–75th | Ratio n | Median days |
|---|---|---|---|---|---|---|
| 2025 Q1–Q4 | 177,255 | 82.7% | 3.42x | 2.01x–7.31x | 132,797 | 41 |
| 2024 Q1–Q4 | 61,431 | 80.1% | 3.37x | 1.67x–5.50x | 44,559 | 83 |
| 2023 Q1–Q4 | 5,963 | 85.0% | 1.92x | 1.64x–2.26x | 5,326 | 72 |
| 2023 Q1–2025 Q4 | 244,649 | 82.1% | 3.30x | 1.92x–6.59x | 182,682 | not pooled |
Line items = determined dispute line items (n). Win rate excludes split decisions and includes default decisions. Ratio n = line items reporting a payment-to-QPA ratio. Days are business days as reported by CMS (2023–2024: from IDR entity assignment; 2025: from initiation) and are never pooled.
Most disputed CPT codes
| CPT code | Line items | Win % | Median ×QPA | Ratio n | Median days |
|---|---|---|---|---|---|
| 99284 Emergency department visit with moderate level of medical decision making | 64,432 | 81.0% | 2.74x | 48,236 | 44 |
| 99285 Emergency department visit with high level of medical decision making | 46,425 | 82.7% | 3.00x | 30,597 | 47 |
| 99283 Emergency department visit with low level of medical decision making | 12,731 | 86.3% | 4.44x | 10,442 | 33 |
| 99291 Critical care, first 30-74 minutes | 5,780 | 87.7% | 3.63x | 3,683 | 39 |
| 93010 Routine electrocardiogram (ECG) using at least 12 leads with interpretation and | 5,130 | 87.9% | 4.51x | 2,401 | 44 |
| 80053 Blood test, comprehensive group of blood chemicals | 3,185 | 82.5% | 13.32x | 2,980 | 33 |
| 85025 Complete blood cell count (red cells, white blood cell, platelets), automated te | 2,665 | 83.3% | 9.42x | 2,455 | 35 |
| 81003 Automated urinalysis test | 1,807 | 81.6% | 15.20x | 1,751 | 31 |
| 83690 Lipase (fat enzyme) level | 1,407 | 83.5% | 9.74x | 1,338 | 32 |
| 93005 Routine electrocardiogram (ECG) using at least 12 leads with tracing | 1,259 | 84.3% | 7.49x | 1,165 | 34 |
| 96374 Injection of drug or substance into vein | 1,174 | 81.0% | 2.61x | 1,066 | 34 |
| 74177 CT scan of abdomen and pelvis with contrast | 1,037 | 79.7% | 12.17x | 970 | 34 |
| 84484 Troponin (protein) analysis, quantitative | 1,000 | 84.3% | 8.34x | 930 | 32.5 |
| 87637 Detection test by multiplex amplified probe technique for severe acute respirato | 844 | 80.5% | 3.08x | 844 | 31 |
| 96361 Infusion into a vein for hydration, each additional hour | 737 | 82.1% | 5.23x | 693 | 34 |
| 99282 Emergency department visit with straightforward medical decision making | 717 | 85.8% | 4.29x | 696 | 26 |
| 71045 X-ray of chest, 1 view | 704 | 83.9% | 6.15x | 577 | 37 |
| 71046 X-ray of chest, 2 views | 688 | 81.4% | 7.28x | 663 | 33 |
| 96375 Injection of additional new drug or substance into vein | 687 | 81.8% | 3.72x | 601 | 39 |
| 85027 Complete blood cell count (red cells, white blood cell, platelets), automated te | 654 | 79.2% | 8.80x | 635 | 29.5 |
2025 Q1–Q4 · rows with n ≥ 30 determined line items · sorted by n.
Related: all specialties in Arizona · Emergency medicine and emergency departments in all states
FAQ
What is the Federal IDR provider win rate for emergency medicine and emergency departments in Arizona?
In 2025 Q1–Q4, the provider or facility offer was selected in 82.7% of 177,255 determined dispute line items for emergency medicine and emergency departments in Arizona. Split decisions are excluded from the denominator and default decisions are included. Withdrawn, settled and ineligible disputes are not in the CMS data.
How do Federal IDR payments compare with the QPA for emergency medicine and emergency departments in Arizona?
In 2025 Q1–Q4, the median prevailing offer was 3.42x the qualifying payment amount (QPA), with a 25th to 75th percentile range of 2.01x to 7.31x (n = 132,797 line items). This uses the CMS field Prevailing Party Offer as % of QPA, where 1.00x equals the QPA.
How long do Federal IDR decisions take for emergency medicine and emergency departments in Arizona?
In 2025 Q1–Q4, the median was 41 business days (n = 177,255 line items), using the CMS field Length of Time to Make Determination (from dispute initiation).