Soft tissue repair · Other

21295

Surgical reduction of the masseter muscle and underlying mandibular bone, typically performed to narrow a square or prominent jaw contour.

Verified May 8, 2026 · 5 sources ↓

Medicare
$185.04
Total RVUs
5.54
Global, days
90
Region
Other
Drawn from CMSAAPCMdclarity

Documentation requirements

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

Source · Editorial brief grounded in 5 cited references ↓

  • Operative note must name the specific approach (intraoral, transparotid, or combined) — vague 'standard approach' language triggers audits.
  • Document both components: masseter muscle reduction and osseous contouring of the mandibular angle, or clearly note if one component was not performed.
  • Preoperative imaging (CT or panoramic radiograph) supporting the extent of bony hypertrophy should be referenced in the note.
  • Functional diagnosis must be explicitly linked in the clinical note — document masticatory dysfunction, asymmetry, or other non-cosmetic indication if billing to insurance.
  • Note must specify laterality (left, right, or bilateral) to support any modifier LT, RT, or 50 appended to the claim.
  • If modifier 22 is appended, include a separate written statement quantifying the additional time and complexity beyond the typical procedure.

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 50 Bilateral procedure 51 Multiple procedures 52 Reduced services 59 Distinct service 62 Co-surgeons 76 Repeat, same physician LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 5 cited references ↓

CPT 21295 describes an open procedure in which the surgeon reduces the bulk of the masseter muscle along with the adjacent mandibular cortical bone — most often the mandibular angle — to reshape a wide or hypertrophic jaw. The approach is typically intraoral or transparotid, and the work involves both soft-tissue debulking and osseous contouring. It is distinct from purely soft-tissue masseter reduction (e.g., botulinum toxin injection) and from full mandibular osteotomies billed under higher-complexity craniofacial codes.

This code carries a 90-day global period. All routine postoperative management through day 90 is bundled — no separate E/M visits, wound checks, or stitch removals unless an unrelated problem is addressed (modifier 24) or a new decision for surgery arises (modifier 57). The substantial HOPD-to-ASC payment differential reflects the site-of-service cost differential; most payers permit either setting, but cosmetic-indication claims face coverage exclusions on nearly all commercial and government plans unless a functional diagnosis (e.g., masseter hypertrophy causing occlusal dysfunction) is documented.

Because the procedure is frequently performed for cosmetic jaw-slimming purposes, payer medical necessity scrutiny is high. Functional indications — bruxism-related hypertrophy, asymmetry causing masticatory dysfunction, or obstructive sleep apnea-related muscle bulk — require explicit documentation linking the diagnosis to the surgical plan. Without a supported ICD-10 code tying a functional impairment to the masseter, expect automatic cosmetic-exclusion denials.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU1.85
Practice expense RVU3.43
Malpractice RVU0.26
Total RVU5.54
Medicare national rate$185.04
Global period90 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

SettingMedicare rate (national)
Office (PFS non-facility)
Procedure performed in physician's office
$185.04
HOPD (APC 5163)
Hospital outpatient department
$1,585.19
ASC (PI A2)
Ambulatory surgical center (freestanding)
$659.17

Common denial reasons

The recurring reasons claims for CPT 21295 get rejected.

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

  • Cosmetic exclusion: payer denies as not medically necessary when the operative note or diagnosis codes reflect appearance-only indication without documented functional impairment.
  • Missing or unsupported functional ICD-10 code — masseter hypertrophy coded solely to aesthetic diagnoses fails medical necessity review on Medicare and most commercial plans.
  • Bilateral billing error: performing bilateral jaw reduction without appending modifier 50 (or separate LT/RT line items per payer preference) causes one side to deny as duplicate.
  • Global period violation: postoperative E/M visits billed within 90 days without modifier 24 are automatically bundled and denied.
  • Unbundling: separately billing osseous contouring or soft-tissue closure codes that are already included in the 21295 work value.

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 5 cited references ↓

01Is CPT 21295 covered by Medicare?
Medicare covers 21295 only when a functional indication is documented — such as masseter hypertrophy causing masticatory dysfunction or clinically significant asymmetry. Procedures performed solely for cosmetic jaw reshaping are excluded from Medicare coverage under the cosmetic surgery exclusion. Expect denial without a supported functional ICD-10 diagnosis in the claim.
02How do you bill bilateral masseter reduction performed in the same session?
Append modifier 50 to a single 21295 line, or bill two lines with modifiers LT and RT, depending on payer instructions. Medicare follows the modifier 50 convention: report one line with modifier 50 and expect payment at 150% of the single-procedure allowable. Verify individual payer preference before submission — some commercial plans require two separate line items.
03What is the global period for CPT 21295, and what does it include?
The global period is 90 days. It covers the day-before visit, the procedure itself, and all routine post-op care through day 90 including wound checks and suture removal. Bill unrelated E/M visits in that window with modifier 24. If a new surgical decision is made during a post-op visit, use modifier 57 on the E/M.
04Can 21295 be billed with other jaw or facial procedures on the same day?
Yes, but NCCI bundling edits apply. Append modifier 51 to indicate multiple procedures in the same session, and modifier 59 where a distinct anatomic site or service needs to be unbundled. Review the NCCI PTP edit table for the specific code pair before submitting — some adjacent craniofacial codes are column-one/column-two pairs with 21295.
05What ICD-10 codes support medical necessity for 21295?
Functional diagnoses most likely to survive payer review include masseter muscle hypertrophy with documented masticatory dysfunction, facial asymmetry with functional impairment, and bruxism-associated muscle enlargement causing pain or occlusal instability. Cosmetic-only codes will trigger automatic denial on Medicare and most commercial plans. Document the functional complaint, clinical findings, and conservative treatment tried before surgery.
06Why is the HOPD payment for 21295 significantly higher than the ASC payment?
The site-of-service differential reflects CMS facility payment methodology: HOPDs receive reimbursement under the OPPS, while ASCs are paid under the ASC fee schedule at a lower rate. The physician's professional fee is the same regardless of setting, but the facility component drives the gap. If the procedure is clinically appropriate for an ASC, shifting site of service reduces total episode cost — relevant for value-based contracts.

Sources & references

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

  1. 01CMS Physician Fee Schedule 2026
  2. 02
    cms.gov
    https://www.cms.gov/medicare/regulations-guidance/physician-self-referral/list-cpt-hcpcs-codes
  3. 03
    aapc.com
    https://www.aapc.com/codes/cpt-codes/21295
  4. 04
    mdclarity.com
    https://www.mdclarity.com/cpt-code/21295
  5. 05
    cms.gov
    https://www.cms.gov/files/document/04-chapter4-ncci-medicare-policy-manual-2026-final.pdf

Mira AI Scribe

Mira's AI scribe captures the surgical approach by name, the extent of masseter muscle debulking, the degree of mandibular angle bone removed, laterality, and the functional indication driving the procedure — all from dictation. That prevents the two most common denial triggers: a vague operative note that looks cosmetic-only, and a missing laterality designation that causes bilateral claims to deny as duplicates.

See how Mira captures CPT 21295 documentation

Related CPT codes

21282 $369.41
Surgical tightening and reattachment of the lateral canthal tendon to restore the outer corner of the eyelid to its correct anatomical position.
27646 $1,389.81
Radical resection of a tumor from the fibula, including removal of wide margins of surrounding normal bone and soft tissue.
26432 $542.76
Closed repair of a finger extensor tendon at its distal insertion — the mallet finger procedure — using splinting with or without percutaneous pin fixation.
27372 $638.96
Surgical removal of a deep foreign body located in the thigh region or knee area, requiring incision through the fascia or into the muscle layer.
Ready?

Ready to transform your orthopedic practice?

See how orthopedic practices are running documentation, billing, and operations on a single voice-first platform.

Get started for free