Billing code 21497: Interdental wiringMedicare rate & RVUs

Interdental wiring stabilizes the jaws through dental fixation for a documented nonfracture indication, rather than as part of coded fracture treatment.

CMS RVU26DEffective Oct 1, 2026109 payment localities27 Medicare services in 2024

Medicare pays $717.12 for 21497 nationally in the office and $561.80 in a hospital or facility. Local office rates run $631.55–$968.83.

Medicare rate · 21497

Interdental wiring

Work RVUs
4.52
Total RVUs
21.47
Global days
090

National rate · 2026

$717.12

Office setting, before claim adjustments.

See every locality for 21497 →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 10 sections
  1. Medicare rate
  2. What 21497 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 21497 covers

This service involves placing wire between teeth to hold the jaws in a stable position for a nonfracture indication. It is generally performed by an oral and maxillofacial surgeon, often in a facility setting. The clinical record should identify why interdental stabilization is needed and describe the wiring performed; the indication should not be a fracture treated under a fracture-specific code.

Report the service when the documented work is interdental wiring for a nonfracture condition, not merely because wires are present as part of another procedure. The 90-day global period includes the day-before preoperative visit and related postoperative care during that period. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is not appropriate for this code. Assistant-at-surgery payment requires documented medical necessity; 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 21497 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

$631.55 to $968.83

$631.55$800.19$968.83
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

21497 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$641.19$505.29
Alaska*$820.82$655.41
Arizona$697.68$547.18
Arkansas$631.55$498.13
Atlanta$729.72$571.92
Austin$747.38$583.06
Bakersfield$766.20$595.98
Baltimore/Surr. Cntys$763.60$596.95
Beaumont$666.48$525.15
Brazoria$709.71$555.79

21497 rates by state

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

Explore a state

Local rates. Clear comparisons.

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

$631.55

$866.76

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

View every state and territory as a table
21497 office rate range by state
State / territoryOffice rate rangeLocalities
AK$820.821
AL$641.191
AR$631.551
AZ$697.681
CA$764.68–$968.8329
CO$750.441
CT$765.951
DC$824.961
DE$709.591
FL$701.34–$765.183
GA$660.98–$729.722
GU$785.361
HI$785.361
IA$660.341
ID$664.361
IL$678.72–$745.904
IN$668.421
KS$656.091
KY$654.711
LA$653.23–$686.972
MA$745.26–$828.062
MD$723.85–$824.963
ME$666.85–$706.012
MI$671.47–$709.342
MN$721.291
MO$640.86–$690.783
MS$636.391
MT$717.081
NC$674.281
ND$707.201
NE$664.421
NH$737.561
NJ$775.33–$815.682
NM$674.871
NV$714.881
NY$684.69–$844.945
OH$669.451
OK$654.601
OR$709.96–$776.252
PA$671.14–$745.592
PR$722.911
RI$736.311
SC$672.851
SD$706.031
TN$659.391
TX$666.48–$747.388
UT$682.451
VA$702.87–$824.962
VI$722.911
VT$703.371
WA$744.21–$846.332
WI$682.481
WV$652.341
WY$712.781

How the 21497 rate is calculated

Each of 21497’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 · 21497

RVUs × geographic indexes × conversion factor

Work4.52

4.52 RVUs× 1.000 GPCI

Practice expense16.45

16.45 RVUs× 1.000 GPCI

Malpractice0.50

0.50 RVUs× 1.000 GPCI

Adjusted RVUs

21.4700

Conversion factor

$33.4009

Medicare rate

$717.12

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 21497

21497 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 21497

Interdental wiring

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.69/0.21Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 21497

Interdental wiring

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

21497 without 51 · national office

$717.12

Interdental wiring

21497-51 · Second procedure: 50%

$358.56

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

21497 compared with similar codes

Compare codes · National

4 codes, side by side

  • 21497

    Interdental wiring4.52 wRVU

    $717.12

  • 21453

    Mandibular fracture care6.47 wRVU

    $1,120.60+$403.48

  • 21462

    Mandibular fracture repair10.73 wRVU

    $2,034.78+$1,317.66

  • 21499

    Not on the physician fee schedule0 wRVU

    Not priced

How to choose

21453Mandibular fracture care
Use 21453 for closed treatment of a mandibular fracture with interdental fixation. Use 21497 for interdental wiring when the indication is not a fracture.
21462Mandibular fracture repair
Use 21462 for open treatment of a mandibular fracture with interdental fixation. This code describes nonfracture interdental wiring instead.
21499Unlisted muscskel px head
Use 21499 only when no listed code describes the service. Code 21497 specifically describes interdental wiring for a nonfracture indication.

21497 billing questions

How is this distinguished from mandibular fracture treatment?

This code is for interdental wiring with a nonfracture indication. When the wiring is part of treatment for a mandibular fracture, select the fracture-specific code that matches the treatment approach.

What documentation supports reporting this code?

Document the nonfracture indication, the need for interdental stabilization, and the wiring work performed. The record should make clear that the service is not being reported as fracture treatment.

Can the wiring be separately reported with another operation?

The code represents the interdental wiring service itself. Report another procedure only when its distinct work is documented and separate reporting is supported by the applicable coding rules.

Can modifier 50 be used when both sides are treated?

No. CMS identifies bilateral adjustment as inappropriate for this code; report the service without modifier 50.

When is an assistant-at-surgery payment allowed?

CMS permits assistant-at-surgery payment only when medical necessity is documented. Co-surgeon and team-surgery payment are not permitted.

What postoperative care is included?

The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.

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 21497PPRRVU2026_Oct_nonQPP.csv, line 1,996 (RVU26D)

Open CMS sourceHow we calculate rates

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