Open surgical repair of a mandibular fracture using interdental fixation — wiring or splinting the teeth together to stabilize the lower jaw while it heals.

Verified May 8, 2026 · 6 sources ↓

Medicare: $2,034.78
Total RVUs: 60.92
Global, days: 90
Region: Other

Drawn from CMSAAPCFindacodeMdclarityPayerprice

Documentation requirements

What must appear in the operative or office note to support the claim.

Source · Editorial brief grounded in 6 cited references ↓

Operative note must identify the specific fracture location (e.g., parasymphysis, body, angle, ramus) and laterality
Document the method of interdental fixation used — arch bars, Ivy loops, Ernst ligatures, or prefabricated splints
Record the pre-reduction and post-reduction occlusal relationship to support medical necessity
Imaging (CT or panoramic radiograph) confirming fracture displacement and indicating need for open reduction
If co-surgeons billed under modifier 62, each surgeon must document their distinct intraoperative role in separate operative notes
For unrelated procedures billed with modifier 79 during the global, document that the condition is new and unrelated to the original mandible fracture

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 51 Multiple procedures 59 Distinct service 62 Co-surgeons 78 Unplanned return — related 79 Unrelated during global 80 Assistant surgeon LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 6 cited references ↓

CPT 21462 covers open treatment of a mandibular fracture with interdental fixation. The surgeon exposes the fracture site, reduces the fragments, and applies interdental wiring, arch bars, or splints to immobilize the occlusion during healing. This is distinct from 21461 (open treatment without internal fixation) and 21470 (complicated mandibular fracture requiring multiple surgical approaches with internal fixation). Choosing between these codes turns on whether interdental fixation was applied and the complexity of the fracture pattern.

The 90-day global period covers all routine post-op care — arch bar adjustments, wire checks, and follow-up visits — through day 90. Any unrelated procedure during that window requires modifier 79. An unplanned return to the OR for a related complication (e.g., hardware failure, infection requiring re-exploration) uses modifier 78. If a co-surgeon (oral/maxillofacial or plastic surgery co-operating with ENT or trauma surgery) is involved, modifier 62 applies when both surgeons contribute distinct portions of the procedure.

This code is typically performed in an inpatient hospital or on-campus outpatient hospital setting given the complexity of mandibular fracture repair and the anesthesia requirements. When billing 21462 alongside another mandibular fracture code from the same operative session — for example, 21453 for a separate fracture segment — append modifier 59 to the secondary code to identify the distinct anatomic site, and consider modifier 51 as well per payer policy.

RVU & reimbursement

Component RVUs and Medicare national rate. Actual payment varies by GPCI locality.

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	10.73
Practice expense RVU	48.58
Malpractice RVU	1.61
Total RVU	60.92
Medicare national rate	$2,034.78
Global period	90 days

Payment by site of service

Medicare pays different rates by setting. HOPD typically pays substantially more than ASC for the same procedure.

Source · CMS OPPS Addendum B·ASC HCPCS payment rates·2026

Setting	Medicare rate (national)
Office (PFS non-facility) Procedure performed in physician's office	$2,034.78
HOPD (APC 5165) Hospital outpatient department	$6,048.05
ASC (PI J8) Ambulatory surgical center (freestanding)	$3,900.21

Common denial reasons

The recurring reasons claims for CPT 21462 get rejected.

Source · Editorial brief grounded in CMS NCCI edits, AAOS coding appeals, and cited references ↓

Upcoding allegation when 21462 is billed for a closed or minimally displaced fracture that did not require open exposure
Bundling denial when 21462 and 21453 are billed same-day without modifier 59 on the secondary code
Global period conflict — routine arch bar follow-up visits billed separately within the 90-day global without modifier 24 or 25
Missing or inadequate imaging documentation to support open treatment over closed management
Co-surgeon claim denied because one surgeon's operative note did not describe a distinct surgical contribution

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 6 cited references ↓

01What separates 21462 from 21461?

21461 is open treatment without interdental fixation — the surgeon opens the fracture but does not wire or splint the teeth together. 21462 requires that interdental fixation (arch bars, wiring, or splints) was applied as part of the operative procedure.

02Can 21462 and 21453 be billed together?

Yes, when separate fracture sites are treated at the same encounter. Append modifier 59 to 21453 to identify the distinct procedural site, and consider modifier 51 per your payer's multi-procedure policy. Document both sites clearly in the operative note.

03Does the 90-day global include arch bar removal?

Yes. Routine arch bar or wire removal performed by the same surgeon within the 90-day global is bundled. If removal requires a return to the OR and is unplanned due to a related complication, use modifier 78. If it falls outside the global period, bill normally.

04When does modifier 62 apply to 21462?

Modifier 62 applies when two surgeons — typically an oral/maxillofacial surgeon and a trauma or plastic surgeon — each perform distinct, necessary portions of the open mandibular repair. Both must document their separate contributions. If one surgeon is merely assisting, use modifier 80 instead.

05Is modifier 22 ever appropriate for 21462?

Yes, for significantly increased operative work — for example, a comminuted mandibular fracture requiring extensive debridement, abnormal anatomy from prior trauma, or a procedure that runs substantially longer than typical. The operative note must quantify why the work exceeded the usual, and expect payer requests for documentation.

06What ICD-10 codes pair with 21462?

Common pairings include S02.6 series codes for mandible fractures — specify site (symphysis, subcondylar, condylar process, ramus, angle, body) and encounter type (initial = A, subsequent = D, sequela = S). Open fractures require the appropriate seventh-character extension. Mismatch between a closed fracture code and 21462 (an open treatment code) will trigger review.

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

Mira AI Scribe

Mira's AI scribe captures the fracture location and classification, type of interdental fixation applied (arch bars, Ivy loops, or splint), pre- and post-reduction occlusal status, imaging findings, and whether a co-surgeon participated. This prevents the most common audit flags: operative notes that omit fixation method or fail to document open exposure, and same-day multi-code claims missing the anatomic distinction needed to defend modifier 59.

See how Mira captures CPT 21462 documentation