No office rate
31636 is for initial placement of an airway stent. Choose 31638 when the bronchoscopist revises a stent that was previously placed.
On this page
CMS RVU26D · Effective 2026-10-01
31638 Airway stent revision Medicare reimbursement rates in Oklahoma
Bronchoscopic revision adjusts a previously placed tracheal or bronchial stent when its position or function needs correction. Compare 31638 office and facility rates across CMS payment localities in Oklahoma.
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 31638 in Oklahoma?
Oklahoma 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
$210.82
1 of 1 localities have a supported rate.
Payment area: Oklahoma
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.
Pulmonary endoscopy
About 31638: Bronchoscopic airway stent revision
Bronchoscopic revision adjusts a previously placed tracheal or bronchial stent when its position or function needs correction.
A pulmonologist or thoracic surgeon uses a bronchoscope to revise a stent already placed in the trachea or a bronchus. The service may be needed when a stent has migrated or no longer maintains the intended airway position or patency. It is commonly performed in a hospital procedural or operating-room setting. The key distinction is revision of an existing airway stent, rather than initial stent placement or airway dilation alone.
Report the service when the procedure note identifies the existing stent, its airway location, the reason for revision, and the work performed. The code has a 0-day global period, so same-day preoperative and postoperative care is included. When related endoscopies are performed together, CMS endoscopy-family pricing applies rather than treating each as an independent full procedure. Medicare does not pay an assistant-at-surgery claim for this service; co-surgeon and team-surgery billing are not permitted.
CMS billing rules for 31638
- Global period
- Minor procedure with a 0-day global period: same-day preoperative and postoperative care is included.
- Multiple procedures
- Endoscopy family pricing applies when related endoscopies are performed together.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Statutory restriction: assistant at surgery is not paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU4.76 · 73%
- Practice expense (office) RVU1.32 · 20%
- Malpractice RVU0.48 · 7%
346
Medicare services in 2024 · #3874 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.
31638 compared with similar codes
Office rates for Oklahoma, from the same CMS release.
No office rate
31631 describes airway dilation with stent placement. It is not the revision service for an existing stent.
No office rate
31630 describes bronchoscopic airway dilation without stent placement. Use 31638 when the service revises an existing airway stent.
Compare 31638 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
Oklahoma →
Office / nonfacility
Unavailable
Facility
$210.82
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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 31638 in Oklahoma.
PPRRVU2026_Oct_nonQPP.csv
3,647
- Code
- 31638
- Physician work
- 4.76
- Practice expense
- 1.32
- Malpractice
- 0.48
GPCI2026.csv
86
- Locality
- Oklahoma
- Physician work
- 1.000
- Practice expense
- 0.893
- Malpractice
- 0.777
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 4.76 | × 1.000 | 4.7600 |
| Practice expense | 1.32 | × 0.893 | 1.1788 |
| Malpractice | 0.48 | × 0.777 | 0.3730 |
| Total RVUs | 6.3117 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Oklahoma$210.82
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 4.76 | 1 |
| Practice expense | 1.32 | 0.893 |
| Malpractice | 0.48 | 0.777 |
(4.76 × 1 + 1.32 × 0.893 + 0.48 × 0.777) × $33.4009 = $210.82
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.
31638 billing questions
When should this code be chosen instead of 31636?
Use 31638 for revision of an airway stent already in place. Code 31636 describes initial stent placement.
Can this code be reported with another bronchoscopy service on the same date?
Related endoscopies performed together are subject to CMS endoscopy-family pricing. Document each service performed and the distinct clinical work.
Does this code include same-day postoperative care?
Yes. Its 0-day global period includes same-day preoperative and postoperative care.
Can an assistant surgeon or co-surgeon be billed?
Medicare does not pay an assistant-at-surgery claim for this service. Co-surgeon and team-surgery billing are not permitted.
What documentation supports reporting stent revision?
Document the existing stent and its airway location, the reason it required revision, and the bronchoscopic adjustment or other revision performed.
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.
3,64431635,,Bronchoscopy w/fb removal,A,,3.33,6.01,,1.05,,0.36,9.70,4.74,0,000,0.00,0.00,0.00,3,0,1,0,0,9,31622,33.4009,09,0,99,0.00,0.00,0.00
3,64531636,,Bronchoscopy bronch stents,A,,4.19,1.22,NA,1.22,,0.44,5.85,5.85,0,000,0.00,0.00,0.00,3,0,1,0,0,9,31622,33.4009,09,0,99,0.00,0.00,0.00
3,64631637,,Bronchoscopy stent add-on,A,,1.54,0.32,NA,0.32,,0.15,2.01,2.01,0,ZZZ,0.00,0.00,0.00,0,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,64731638,,Bronchoscopy revise stent,A,,4.76,1.32,NA,1.32,,0.48,6.56,6.56,0,000,0.00,0.00,0.00,3,0,1,0,0,9,31622,33.4009,09,0,99,0.00,0.00,0.00
3,64831640,,Bronchoscopy w/tumor excise,A,,4.81,1.28,NA,1.28,,0.44,6.53,6.53,0,000,0.00,0.00,0.00,3,0,1,0,0,9,31622,33.4009,09,0,99,0.00,0.00,0.00
3,64931641,,Bronchoscopy treat blockage,A,,4.89,1.34,NA,1.34,,0.49,6.72,6.72,0,000,0.00,0.00,0.00,3,0,1,0,0,9,31622,33.4009,09,0,99,0.00,0.00,0.00
3,65031643,,Diag bronchoscope/catheter,A,,3.40,0.88,NA,0.88,,0.28,4.56,4.56,0,000,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
8311502,NC,00,NORTH CAROLINA,1.000,0.933,0.639
8403302,ND,01,NORTH DAKOTA**,1.000,1.000,0.406
8515202,OH,00,OHIO,1.000,0.913,1.008
8604312,OK,00,OKLAHOMA,1.000,0.893,0.777
8702302,OR,01,PORTLAND,1.016,1.111,0.744
8802302,OR,99,REST OF OREGON,1.000,0.996,0.703
8912502,PA,01,METROPOLITAN PHILADELPHIA,1.018,1.041,1.193