Federal IDR outcomes: Vascular surgery in Wisconsin
In 2025 Q1–Q4, the provider or facility offer prevailed in 98.3% of 419 determined Federal IDR dispute line items for vascular surgery in Wisconsin. The median prevailing offer was 16.80x the QPA (25th–75th percentile 11.36x–23.74x; n = 283). The median time to a decision was 40 business days (n = 419).
Determined line items
419
2025 Q1–Q4 · 2 split decisions excluded
Provider win rate
98.3%
n = 419 · 2025 Q1–Q4
Median payment vs QPA
16.80x
middle half 11.36x–23.74x · n = 283 · 2025 Q1–Q4
Median days to decision
40
business days, from dispute initiation · n = 419 · 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 | 419 | 98.3% | 16.80x | 11.36x–23.74x | 283 | 40 |
| 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 | 425 | 98.4% | 16.80x | 11.33x–23.86x | 287 | 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 |
|---|---|---|---|---|---|
| 64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using i | 99 | 99.0% | 17.12x | 71 | 38 |
| 62321 Injection of substance into middle or upper spine canal using imaging guidance | 71 | 100.0% | 12.77x | 55 | 42 |
| 64493 Injection of lower or sacral spine facet joint using imaging guidance, single le | 51 | 98.0% | 22.48x † | 38 | 41 |
| 64490 Injection of upper or middle spine facet joint using imaging guidance, single le | 46 | 97.8% | 18.39x | 34 | 42 |
2025 Q1–Q4 · rows with n ≥ 30 determined line items · sorted by n.
Related: all specialties in Wisconsin · Vascular surgery in all states
FAQ
What is the Federal IDR provider win rate for vascular surgery in Wisconsin?
In 2025 Q1–Q4, the provider or facility offer was selected in 98.3% of 419 determined dispute line items for vascular surgery in Wisconsin. 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 vascular surgery in Wisconsin?
In 2025 Q1–Q4, the median prevailing offer was 16.80x the qualifying payment amount (QPA), with a 25th to 75th percentile range of 11.36x to 23.74x (n = 283 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 vascular surgery in Wisconsin?
In 2025 Q1–Q4, the median was 40 business days (n = 419 line items), using the CMS field Length of Time to Make Determination (from dispute initiation).