Federal IDR outcomes: Radiology in Michigan
In 2025 Q1–Q4, the provider or facility offer prevailed in 98.2% of 2,910 determined Federal IDR dispute line items for radiology in Michigan. The median prevailing offer was 4.32x the QPA (25th–75th percentile 2.19x–4.39x; n = 2,910). The median time to a decision was 22 business days (n = 2,910).
Determined line items
2,910
2025 Q1–Q4 · 0 split decisions excluded
Provider win rate
98.2%
n = 2,910 · 2025 Q1–Q4
Median payment vs QPA
4.32x
middle half 2.19x–4.39x · n = 2,910 · 2025 Q1–Q4
Median days to decision
22
business days, from dispute initiation · n = 2,910 · 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 | 2,910 | 98.2% | 4.32x | 2.19x–4.39x | 2,910 | 22 |
| 2024 Q1–Q4 | Fewer than 30 determined line items; not shown. | |||||
| 2023 Q1–Q4 | Fewer than 30 determined line items; not shown. | |||||
| 2023 Q1–2025 Q4 | 2,911 | 98.2% | 4.32x | 2.19x–4.39x | 2,911 | 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 | 476 | 100.0% | 4.32x | 476 | 22 |
| 74177 CT scan of abdomen and pelvis with contrast | 249 | 100.0% | 3.96x | 249 | 19 |
| 71046 X-ray of chest, 2 views | 241 | 100.0% | 4.34x | 241 | 22 |
| 70450 CT scan head or brain without contrast | 177 | 100.0% | 4.17x | 177 | 22 |
| 74176 CT scan of abdomen and pelvis without contrast | 114 | 100.0% | 4.11x | 114 | 22 |
| 70553 MRI scan of brain before and after contrast | 101 | 100.0% | 4.06x | 101 | 22 |
| 77067 Screening mammography | 71 | 100.0% | 4.42x | 71 | 19 |
| 71275 CT scan of blood vessels of chest with contrast | 67 | 100.0% | 4.31x | 67 | 22 |
| 70551 MRI scan of brain without contrast | 52 | 100.0% | 4.32x | 52 | 22 |
| 74018 X-ray of abdomen, 1 view | 50 | 100.0% | 4.32x | 50 | 22 |
| 72141 MRI scan of upper spinal canal without contrast | 47 | 100.0% | 4.36x | 47 | 22 |
| 73630 X-ray of foot, minimum of 3 views | 47 | 83.0% | 4.40x | 47 | 20 |
| 71260 CT scan of chest with contrast | 44 | 100.0% | 4.24x | 44 | 22 |
| 73564 X-ray of knee, 4 or more views | 42 | 73.8% | 4.32x | 42 | 20 |
| 76830 Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | 42 | 100.0% | 4.30x | 42 | 19 |
| 72148 MRI scan of lower spinal canal without contrast | 41 | 100.0% | 4.15x | 41 | 22 |
| 73130 X-ray of hand, minimum of 3 views | 40 | 90.0% | 4.38x | 40 | 20 |
| 76705 Limited ultrasound scan of abdomen | 40 | 100.0% | 4.38x | 40 | 19 |
| 73110 X-ray of wrist, minimum of 3 views | 38 | 86.8% | 4.38x | 38 | 19 |
| 71250 CT scan of chest without contrast | 36 | 100.0% | 3.74x | 36 | 21.5 |
2025 Q1–Q4 · rows with n ≥ 30 determined line items · sorted by n.
Related: all specialties in Michigan · Radiology in all states
FAQ
What is the Federal IDR provider win rate for radiology in Michigan?
In 2025 Q1–Q4, the provider or facility offer was selected in 98.2% of 2,910 determined dispute line items for radiology in Michigan. 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 Michigan?
In 2025 Q1–Q4, the median prevailing offer was 4.32x the qualifying payment amount (QPA), with a 25th to 75th percentile range of 2.19x to 4.39x (n = 2,910 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 Michigan?
In 2025 Q1–Q4, the median was 22 business days (n = 2,910 line items), using the CMS field Length of Time to Make Determination (from dispute initiation).