Federal IDR outcomes: Radiology in Missouri
In 2025 Q1–Q4, the provider or facility offer prevailed in 86.5% of 584 determined Federal IDR dispute line items for radiology in Missouri. The median prevailing offer was 1.92x the QPA (25th–75th percentile 1.46x–2.39x; n = 584). The median time to a decision was 47 business days (n = 584).
Determined line items
584
2025 Q1–Q4 · 0 split decisions excluded
Provider win rate
86.5%
n = 584 · 2025 Q1–Q4
Median payment vs QPA
1.92x
middle half 1.46x–2.39x · n = 584 · 2025 Q1–Q4
Median days to decision
47
business days, from dispute initiation · n = 584 · 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 | 584 | 86.5% | 1.92x | 1.46x–2.39x | 584 | 47 |
| 2024 Q1–Q4 | 223 | 100.0% | 1.17x | 1.17x–1.22x | 223 | 34 |
| 2023 Q1–Q4 | 91 | 100.0% | 1.14x | 1.12x–1.26x | 91 | 39 |
| 2023 Q1–2025 Q4 | 898 | 91.2% | 1.49x | 1.17x–2.06x | 898 | 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 |
|---|---|---|---|---|---|
| 71045 X-ray of chest, 1 view | 116 | 100.0% | 2.44x | 116 | 45.5 |
| 74177 CT scan of abdomen and pelvis with contrast | 102 | 66.7% | 1.58x | 102 | 29 |
| 77067 Screening mammography | 67 | 73.1% | 1.25x | 67 | 56 |
| 70450 CT scan head or brain without contrast | 47 | 100.0% | 1.92x | 47 | 47 |
| 71046 X-ray of chest, 2 views | 42 | 100.0% | 2.39x | 42 | 47 |
| 74176 CT scan of abdomen and pelvis without contrast | 37 | 64.9% | 1.28x | 37 | 23 |
2025 Q1–Q4 · rows with n ≥ 30 determined line items · sorted by n.
Related: all specialties in Missouri · Radiology in all states
FAQ
What is the Federal IDR provider win rate for radiology in Missouri?
In 2025 Q1–Q4, the provider or facility offer was selected in 86.5% of 584 determined dispute line items for radiology in Missouri. 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 Withdrawn, settled and ineligible disputes are not in the CMS data.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 radiology in Missouri?
In 2025 Q1–Q4, the median prevailing offer was 1.92x the qualifying payment amount (QPA), with a 25th to 75th percentile range of 1.46x to 2.39x (n = 584 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 radiology in Missouri?
In 2025 Q1–Q4, the median was 47 business days (n = 584 line items), using the CMS field Length of Time to Make Determination (from dispute initiation).