Federal IDR outcomes: Anesthesiology in Colorado
In 2025 Q1–Q4, the provider or facility offer prevailed in 78.6% of 3,009 determined Federal IDR dispute line items for anesthesiology in Colorado. The median prevailing offer was 2.56x the QPA (25th–75th percentile 1.97x–2.67x; n = 3,006). The median time to a decision was 24 business days (n = 3,009).
Determined line items
3,009
2025 Q1–Q4 · 4 split decisions excluded
Provider win rate
78.6%
n = 3,009 · 2025 Q1–Q4
Median payment vs QPA
2.56x
middle half 1.97x–2.67x · n = 3,006 · 2025 Q1–Q4
Median days to decision
24
business days, from dispute initiation · n = 3,009 · 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 | 3,009 | 78.6% | 2.56x | 1.97x–2.67x | 3,006 | 24 |
| 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 | 3,010 | 78.5% | 2.56x | 1.97x–2.67x | 3,007 | 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 |
|---|---|---|---|---|---|
| 00812 Anesthesia for exam of colon using an endoscope | 549 | 84.7% | 2.17x | 549 | 27 |
| 01967 Anesthesia for labor during planned vaginal delivery | 257 | 71.6% | 2.53x | 257 | 24 |
| 00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using | 221 | 79.6% | 2.56x | 221 | 26 |
| 00840 Anesthesia for other procedure on lower abdomen | 181 | 77.9% | 2.61x | 181 | 24 |
| 00811 Anesthesia for other procedure on large bowel using an endoscope | 148 | 84.5% | 2.39x | 148 | 25 |
| 01961 Anesthesia for cesarean delivery | 108 | 80.6% | 2.60x | 108 | 23 |
| 00790 Anesthesia for other procedure on upper abdomen | 94 | 71.3% | 2.59x | 94 | 26 |
| 00813 Anesthesia for procedure on small and large bowel using an endoscope | 85 | 85.9% | 2.49x | 85 | 23 |
| 00952 Anesthesia for exam of uterus using an endoscope | 69 | 81.2% | 2.55x | 68 | 25 |
| 01402 Anesthesia for procedure for total knee joint replacement | 61 | 68.9% | 2.60x | 60 | 23 |
| 01968 Anesthesia for cesarean delivery following labor | 50 | 60.0% | 2.54x | 50 | 22.5 |
| 00170 Anesthesia for other procedure on mouth | 46 | 80.4% | 2.51x | 46 | 24 |
| 01400 Anesthesia for other procedure or exam of knee joint using an endoscope | 46 | 78.3% | 2.55x | 46 | 26 |
| 00160 Anesthesia for other procedure on nose and sinuses | 45 | 82.2% | 2.56x | 45 | 24 |
| 00670 Anesthesia for extensive surgery on spine | 41 | 78.0% | 2.61x | 41 | 25 |
| 01480 Anesthesia for other procedure on lower leg, ankle, and foot bones | 39 | 82.1% | 2.60x | 39 | 21 |
| 01630 Anesthesia for other procedure on top of arm bone and shoulder joint | 38 | 84.2% | 2.58x | 38 | 24 |
| 01214 Anesthesia for total hip replacement | 37 | 83.8% | 2.59x | 37 | 24 |
| 00630 Anesthesia for other procedure on lower spine | 35 | 74.3% | 2.59x | 35 | 22 |
| 01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wri | 34 | 88.2% | 2.54x | 34 | 22.5 |
2025 Q1–Q4 · rows with n ≥ 30 determined line items · sorted by n.
Related: all specialties in Colorado · Anesthesiology in all states
FAQ
What is the Federal IDR provider win rate for anesthesiology in Colorado?
In 2025 Q1–Q4, the provider or facility offer was selected in 78.6% of 3,009 determined dispute line items for anesthesiology in Colorado. 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 anesthesiology in Colorado?
In 2025 Q1–Q4, the median prevailing offer was 2.56x the qualifying payment amount (QPA), with a 25th to 75th percentile range of 1.97x to 2.67x (n = 3,006 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 anesthesiology in Colorado?
In 2025 Q1–Q4, the median was 24 business days (n = 3,009 line items), using the CMS field Length of Time to Make Determination (from dispute initiation).