No office rate
29800 describes diagnostic TMJ arthroscopy, with or without synovial biopsy. Choose 29804 when the arthroscopic service includes operative treatment.
On this page
CMS RVU26D · Effective 2026-10-01
29804 TMJ arthroscopy Medicare reimbursement rates in Idaho
Report surgical TMJ arthroscopy when a surgeon uses an arthroscope to treat joint pathology, rather than performing diagnostic inspection alone. Compare 29804 office and facility rates across CMS payment localities in Idaho.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 29804 in Idaho?
Idaho has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$504.51
1 of 1 localities have a supported rate.
Payment area: Idaho
One mapped payment locality.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Arthroscopic surgery
About 29804: Surgical temporomandibular joint arthroscopy
Report surgical TMJ arthroscopy when a surgeon uses an arthroscope to treat joint pathology, rather than performing diagnostic inspection alone.
A surgeon inserts an arthroscope into the temporomandibular joint (TMJ) to treat joint pathology under direct visualization. Oral and maxillofacial surgeons and other surgeons who treat TMJ disorders may perform the procedure in an operating room or ambulatory surgery setting. Clinical situations can include persistent joint pain or restricted movement associated with intra-articular disease. The code represents operative arthroscopy, not a diagnostic-only examination.
Report 29804 when the operative note supports a therapeutic arthroscopic service; document the treated joint, findings, and work performed. The surgical session includes a 90-day global period, including the day-before preoperative visit and related postoperative care. When multiple procedures occur in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeons require supporting documentation, and team surgery is not permitted.
CMS billing rules for 29804
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral procedure with modifier 50 is paid at 150%.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU8.65 · 53%
- Practice expense (office) RVU6.43 · 40%
- Malpractice RVU1.14 · 7%
138
Medicare services in 2024 · #4615 by national volume
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
29804 compared with similar codes
Office rates for Idaho, from the same CMS release.
No office rate
21050 is for condylectomy involving the TMJ condyle. Use 29804 for operative treatment performed arthroscopically within the joint.
$397.29
21073 describes TMJ manipulation under anesthesia. It is not a substitute for arthroscopy when the surgeon treats joint pathology using an arthroscope.
Compare 29804 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Idaho →
Office / nonfacility
Unavailable
Facility
$504.51
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 29804 in Idaho.
PPRRVU2026_Oct_nonQPP.csv
3,315
- Code
- 29804
- Physician work
- 8.65
- Practice expense
- 6.43
- Malpractice
- 1.14
GPCI2026.csv
47
- Locality
- Idaho
- Physician work
- 1.000
- Practice expense
- 0.920
- Malpractice
- 0.473
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 8.65 | × 1.000 | 8.6500 |
| Practice expense | 6.43 | × 0.920 | 5.9156 |
| Malpractice | 1.14 | × 0.473 | 0.5392 |
| Total RVUs | 15.1048 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Idaho$504.51
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 8.65 | 1 |
| Practice expense | 6.43 | 0.92 |
| Malpractice | 1.14 | 0.473 |
(8.65 × 1 + 6.43 × 0.92 + 1.14 × 0.473) × $33.4009 = $504.51
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
29804 billing questions
How does 29804 differ from 29800?
Use 29804 when the arthroscopy includes operative treatment of the TMJ. Code 29800 is for diagnostic arthroscopy, with or without synovial biopsy, when the service is diagnostic rather than surgical.
Can diagnostic inspection be reported separately with 29804?
Diagnostic inspection of the joint is part of the operative arthroscopy. Do not separately report 29800 for the diagnostic portion of the same surgical arthroscopy.
What documentation supports 29804?
The operative report should identify the TMJ treated, describe the arthroscopic findings, and state the therapeutic work performed. Document laterality when applicable.
How is bilateral TMJ arthroscopy reported?
For bilateral surgery, report modifier 50; CMS pays the bilateral procedure at 150% under the supplied fee schedule rule.
How does the multiple-procedure reduction affect 29804?
When other procedures are performed in the same session, the highest-valued procedure is paid in full and the remaining procedures are subject to the standard 50% reduction.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
3,31229750,,Wedging of clubfoot cast,A,,1.23,2.05,,0.54,,0.25,3.53,2.02,0,000,0.00,0.00,0.00,2,1,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,31329799,,Unlisted px casting/strpg,C,,0.00,0.00,,0.00,,0.00,0.00,0.00,0,YYY,0.00,0.00,0.00,2,0,0,1,1,9,,33.4009,09,0,99,0.00,0.00,0.00
3,31429800,,Jaw arthroscopy/surgery,A,,6.67,7.14,NA,7.14,,1.42,15.23,15.23,0,090,0.10,0.69,0.21,2,1,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,31529804,,Jaw arthroscopy/surgery,A,,8.65,6.43,NA,6.43,,1.14,16.22,16.22,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,31629805,,Sho arthrs dx +- synovial bx,A,,5.88,6.35,NA,6.35,,1.21,13.44,13.44,0,090,0.10,0.69,0.21,2,1,1,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,31729806,,Sho arthrs srg capsulorraphy,A,,14.76,11.35,NA,11.35,,3.02,29.13,29.13,0,090,0.10,0.69,0.21,3,1,1,1,0,9,29805,33.4009,09,0,99,0.00,0.00,0.00
3,31829807,,Sho arthrs srg rpr slap les,A,,14.30,11.27,NA,11.27,,2.93,28.50,28.50,0,090,0.10,0.69,0.21,3,1,1,1,0,9,29805,33.4009,09,0,99,0.00,0.00,0.00
4410212,GA,01,ATLANTA,1.003,1.016,1.201
4510212,GA,99,REST OF GEORGIA,1.000,0.892,1.192
4601212,HI,01,"HAWAII, GUAM",1.000,1.137,0.579
4702202,ID,00,IDAHO,1.000,0.920,0.473
4806102,IL,16,CHICAGO,1.007,1.005,2.295
4906102,IL,12,EAST ST. LOUIS,1.000,0.920,2.014
5006102,IL,15,SUBURBAN CHICAGO,1.007,1.027,1.772