Hospitals report these codes with terse, inconsistent chargemaster text. This plain-English title was written by an AI model from that text and has not been reviewed by a person, so it can be wrong. The prices on this page come straight from hospital filings and do not depend on it.
Original text from hospital filings
Rheumatoid factor level
Low
$1
Average
$2.2k
Median
$60
High
$3365.3k
Filter by billing methodology
Reflects a negotiated percentage of total billed charges.
Showing only prices reported under the percent of billed charges methodology. Choose another in the filter above to change the chart. 1615 hospitals; the 90th percentile is 8.9× the 10th. Each bar is a price range and its height is how many hospitals fall in it. Hover a bar, or a row in the ladder, for details.
Click a bar to filter the hospitals table to that price range.
| # | Hospital | ||||||
|---|---|---|---|---|---|---|---|
| 1 | Baptist Healthcare System Inc Lexington, KY | $77 | $120 | $91 | 76% | 1,434 | $5 – $720 |
| 2 | Baptist Healthcare System Inc Corbin, KY | $83 | $141 | $113 | 80% | 1,156 | $5 – $709 |
| 3 | Northwestern Medicine Central DuPage Hospital Winfield, IL | $42 | $49 | $44 | 89% | 1,065–2,145 | $2 – $229 |
| 4 | Massachusetts General Hospital Boston, MA | $72 | $65 | $19 | 29% | 724–832 | $6 – $93 |
| 5 | Northwestern Memorial Hospital Chicago, IL | $70 | $69 | $45 | 65% | 698–1,175 | $3 – $257 |
| 6 | Brigham and Women's Hospital Boston, MA | $70 | $65 | $18 | 27% | 655–763 | $6 – $93 |
| 7 | West Virginia University Hospitals, Inc. Morgantown, WV | $63 | $55 | $14 | 26% | 632–785 | $4 – $65 |
| 8 | Baptist Healthcare System Inc Albany, IN | $83 | $112 | $83 | 75% | 565 | $5 – $531 |
| 9 | Baptist Healthcare System Inc. Louisville, KY | $85 | $122 | $90 | 74% | 531 | $3 – $709 |
| 10 | St Johns Hospital Of The Hospital Sisters Of The Third Order Of St Francis Springfield, IL | $77 | $69 | $21 | 30% | 528–564 | $6 – $86 |
Ask Claude or any MCP client for CPT 86431 pricing at a specific hospital — see how to connect.