Billing code 31634: BronchoscopyMedicare rate & RVUs

Bronchoscopic balloon occlusion temporarily blocks selected airways to help locate and measure a persistent pulmonary air leak.

CMS RVU26DEffective Oct 1, 2026109 payment localities266 Medicare services in 2024

Medicare pays $1,606.25 for 31634 nationally in the office and $170.34 in a hospital or facility. Local office rates run $1,392.87–$2,264.73.

Medicare rate · 31634

Bronchoscopy

Swap in your local Medicare rate.

Work RVUs
3.66
Total RVUs
48.09
Global days
000

National rate · 2026

$1,606.25

Office setting, before claim adjustments.

See every locality for 31634 → · Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

On this page 9 sections
  1. Medicare rate
  2. What 31634 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Billing questions
  9. Sources

What 31634 covers

During this procedure, a pulmonologist or other bronchoscopist passes a flexible or rigid bronchoscope into the airways and uses a balloon catheter to temporarily occlude selected branches. The clinician observes the effect on an air leak, often through a connected chest drainage system, to help identify the airway responsible. This assessment may be used when a patient has a persistent leak, such as after lung surgery or with a bronchopleural fistula, and localization could guide treatment planning.

Report the service when balloon occlusion and air-leak assessment are performed, rather than for airway inspection alone or airway dilation. The record should support the clinical reason for testing, the airways occluded, and the observed leak response or measurements. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When related endoscopies are performed together, endoscopy family pricing applies. Modifier 50 is inappropriate. CMS may pay for an assistant at surgery; co-surgeons and team surgery are not permitted.

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.

Where 31634 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$1392.87 to $2264.73

$1392.87$1828.80$2264.73
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

31634 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$1,417.03$160.62
Alaska*$1,757.65$228.41
Arizona$1,558.89$167.49
Arkansas$1,392.87$159.43
Atlanta$1,632.58$173.71
Austin$1,690.50$171.31
Bakersfield$1,745.18$171.43
Baltimore/Surr. Cntys$1,718.51$177.78
Beaumont$1,472.92$166.24
Brazoria$1,591.33$168.35

31634 rates by state

Office rate range in each state. Select a state to see its payment localities.

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$1,392.87

$2,004.40

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
31634 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,757.651
AL$1,417.031
AR$1,392.871
AZ$1,558.891
CA$1,744.06–$2,264.7329
CO$1,699.291
CT$1,724.561
DC$1,876.221
DE$1,587.981
FL$1,547.53–$1,684.993
GA$1,449.58–$1,632.582
GU$1,802.851
HI$1,802.851
IA$1,473.881
ID$1,482.151
IL$1,484.96–$1,656.134
IN$1,492.611
KS$1,458.981
KY$1,441.841
LA$1,436.47–$1,521.042
MA$1,683.78–$1,895.502
MD$1,624.15–$1,876.223
ME$1,483.95–$1,588.562
MI$1,479.74–$1,562.982
MN$1,640.471
MO$1,402.80–$1,535.623
MS$1,398.511
MT$1,606.231
NC$1,503.291
ND$1,599.111
NE$1,485.431
NH$1,665.101
NJ$1,747.73–$1,850.282
NM$1,486.491
NV$1,605.711
NY$1,529.08–$1,902.585
OH$1,478.281
OK$1,446.071
OR$1,596.79–$1,768.522
PA$1,484.89–$1,671.122
PR$1,622.261
RI$1,655.851
SC$1,492.581
SD$1,598.271
TN$1,466.731
TX$1,472.92–$1,690.508
UT$1,516.701
VA$1,577.69–$1,876.222
VI$1,622.261
VT$1,585.591
WA$1,682.98–$1,944.302
WI$1,536.111
WV$1,418.601
WY$1,603.121

How the 31634 rate is calculated

Each of 31634’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

How the rate is built · 31634

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 3.66Practice expense 44.07Malpractice 0.36

48.0900 adjusted RVUs×$33.4009 conversion factor=$1,606.25

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 31634

The CMS indicators that decide how 31634 is paid alongside other services.

CMS payment indicators · 31634

Bronchoscopy

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures3Endoscopy family rules apply.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

31634 without 51 · national office

$1,606.25

Bronchoscopy

31634-51 · Second procedure: 50%

$803.13

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

31634 compared with similar codes

Compare codes

31634 vs 31622 vs 31630 vs 31631 vs 31643: national Medicare rates

Swap in your local Medicare rate.

  • 31634
    Bronchoscopy · 3.66 wRVU
    $1,606.25
  • 31622
    Bronchoscopy · 2.47 wRVU
    $282.24−$1,324.01
  • 31630
    Bronchoscopy · 3.71 wRVU
    —
  • 31631
    Airway stent · 4.25 wRVU
    —
  • 31643
    Bronchoscopy · 3.4 wRVU
    —

How to choose

31622Bronchoscopy
This is diagnostic bronchoscopy without the balloon-occlusion air-leak assessment that distinguishes 31634.
31630Bronchoscopy
31630 addresses bronchial dilation for narrowing; 31634 uses temporary balloon occlusion to assess an air leak.
31631Airway stent
31631 involves airway dilation with stent placement, not balloon occlusion to localize an air leak.
31643Bronchoscopy
31643 describes bronchoscopic catheter placement for radiologic or therapeutic purposes; 31634 is specific to balloon-occlusion air-leak assessment.

31634 billing questions

When is 31634 more appropriate than a diagnostic bronchoscopy code?

Use 31634 when balloon occlusion is performed to assess an air leak. Airway inspection without that assessment is a different service.

What documentation supports reporting 31634?

Document the indication for air-leak localization, the airway branches occluded, and the leak response or measurements observed during the test.

Can modifier 50 be used when both lungs are assessed?

No. CMS identifies bilateral adjustment as inappropriate for this code.

How does CMS price related endoscopies performed in the same session?

Endoscopy family pricing applies when related endoscopies are performed together. The CMS facts do not specify separate payment treatment for particular code pairings.

Can an assistant, co-surgeon, or surgical team be reported?

An assistant at surgery may be paid. Co-surgeons and team surgery are not permitted.

What does the 0-day global period include?

Same-day preoperative and postoperative care is included in the procedure.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Show the CMS file lines behind this rate
RVUs for 31634PPRRVU2026_Oct_nonQPP.csv, line 3,643 (RVU26D)

Open CMS sourceHow we calculate rates

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