Surgical · Other

Unilateral orbital repositioning via periorbital osteotomies with bone grafting to correct eye socket position from trauma or congenital deformity.

Verified May 8, 2026 · 6 sources ↓

Medicare: $1,821.35
Total RVUs: 54.53
Global, days: 90
Region: Other

Drawn from CMSFindacodeAAPC

Documentation requirements

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

Source · Editorial brief grounded in 6 cited references ↓

Specify laterality (left or right orbit) explicitly in the operative note and on the claim.
Document the underlying diagnosis — congenital craniofacial deformity, post-traumatic orbital dystopia, or prior surgical failure — with supporting imaging.
Describe the osteotomy technique by name and enumerate which orbital walls or rims were cut and mobilized.
Identify bone graft source (autograft harvest site, allograft, or synthetic) and how grafts were used to fill defects and stabilize repositioned orbit.
Record pre- and intraoperative measurements of orbital position to justify the medical necessity of repositioning.
Note inpatient admission status; Medicare requires inpatient setting for this procedure and documentation must support that level of care.

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 24 Unrelated E/M during global 25 Significant separate E/M 51 Multiple procedures 52 Reduced services 57 Decision for surgery 58 Staged or related 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 21268 describes a unilateral orbital repositioning procedure in which the surgeon performs osteotomies around the bony orbit to mobilize and reposition the eye socket, then uses bone grafts to fill osseous defects and stabilize the new position. The procedure addresses orbital dystopia or displacement resulting from craniofacial trauma, congenital anomaly, or prior failed repair. It is a major craniofacial reconstruction — not a simple orbital floor repair.

This code carries a 90-day global period. All routine postoperative visits, wound checks, and stitch removals through day 90 are bundled. Bill unrelated problems in that window with modifier 24; a separately identifiable E/M on the day of surgery requires modifier 25. CMS designates 21268 as an inpatient-only procedure — it does not qualify for Medicare ASC or HOPD reimbursement under the outpatient prospective payment system in the same way standard ambulatory codes do, and admitting the patient to inpatient status is required for Medicare payment.

Because this is a unilateral procedure by definition, modifier LT or RT is expected when payers require laterality designation. If a staged or planned secondary procedure on the same orbit becomes necessary, modifier 58 applies. An unplanned return to the OR for a related complication within the global uses modifier 78; an unrelated procedure in the same period uses modifier 79.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	26.39
Practice expense RVU	23.25
Malpractice RVU	4.89
Total RVU	54.53
Medicare national rate	$1,821.35
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	$1,821.35
HOPD (APC 5165) Hospital outpatient department	$6,048.05
ASC (PI J8) Ambulatory surgical center (freestanding)	$3,833.49

Common denial reasons

The recurring reasons claims for CPT 21268 get rejected.

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

Site-of-service mismatch: billing 21268 in an outpatient or ASC setting triggers automatic denial under Medicare inpatient-only rules.
Missing or vague laterality documentation — operative note says 'right side' but claim omits LT/RT modifier when payer requires it.
Diagnosis code mismatch: using a fracture-only ICD-10 when the operative note describes congenital orbital dystopia, or vice versa.
Prior authorization not obtained — several commercial payers and Medicaid managed care plans (e.g., Molina) require PA for major craniofacial reconstructions.
Global period bundling: billing a related postoperative visit or minor wound procedure without modifier 24 or 78 within the 90-day global window.

Frequently asked questions

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

01Is CPT 21268 billable in an ASC or hospital outpatient department for Medicare patients?

No. CMS designates 21268 as an inpatient-only procedure. Medicare requires inpatient admission; billing in an ASC or HOPD setting will result in denial. Confirm the patient's admission status before submitting the claim.

02When does modifier 22 apply to 21268?

Use modifier 22 when the procedure is substantially more work than typical — for example, severe post-traumatic scarring, prior failed reconstruction, or unusual anatomic distortion requiring significantly extended operative time. Attach a cover letter quantifying the additional time and complexity; the claim will go to manual review.

03How do you bill if both orbits are repositioned in the same session?

21268 is defined as unilateral. If both orbits are repositioned, bill 21268 twice with modifier 50 for bilateral, or on separate lines with LT and RT. Check payer-specific bilateral payment rules — Medicare applies a bilateral reduction under the multiple procedure payment reduction framework.

04What modifier applies if the patient returns to the OR within the global for a related complication?

Use modifier 78 for an unplanned return to the operative suite for a procedure related to the original surgery during the 90-day global. Modifier 79 is for an unrelated procedure in the same global period — do not use 78 and 79 interchangeably.

05Can 21268 be billed with a bone graft harvest code in the same session?

It depends. If the bone graft harvest is from a separate donor site requiring distinct operative work (e.g., iliac crest), check NCCI edits for the applicable graft code. Some harvest codes are bundled; others are separately reportable with modifier 59 or XS. Verify the specific pairing in the current NCCI PTP tables before billing.

06Which ICD-10 diagnoses most commonly support 21268?

Post-traumatic orbital deformity, congenital orbital dystopia, and craniofacial dysostosis are the most defensible indications. The diagnosis must match the operative note's stated indication — a mismatch between a trauma code and a congenital-focused operative report is a common audit trigger.

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 osteotomy technique, orbital walls mobilized, graft source and placement, laterality, and intraoperative repositioning measurements directly from dictation. That level of specificity prevents the two most common audit flags on 21268: a vague operative note that doesn't support the complexity billed under modifier 22, and a missing laterality designation that triggers payer rejections.

See how Mira captures CPT 21268 documentation