20912

Harvesting of nasal septal cartilage for use as a graft in another anatomical site

Verified May 8, 2026 · 7 sources ↓

Medicare: $435.21
Total RVUs: 13.03
Global, days: 90
Region: Other

Drawn from CMSAmerican SocietyAmerican AcademyAAPCemedNY Physician

Documentation requirements

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

Source · Editorial brief grounded in 7 cited references ↓

Operative note must identify the nasal septum explicitly as the donor harvest site — do not use generic language like 'cartilage graft obtained'
Document medical necessity for the graft: functional or reconstructive indication, not cosmetic, with supporting diagnosis
Pre-operative photographs are required when 20912 accompanies rhinoplasty; document photo date within 3 months of surgery
Identify the recipient site and primary procedure to confirm 20912 is not already bundled into the companion code (e.g., 21230, 21235)
Confirm the operative note distinguishes harvest work from the primary reconstruction to support separate reportability
For Medicare, confirm ICD-10 diagnosis maps to Group 6 codes listed in CMS Article A59299 (rhinoplasty/nasal reconstruction group)

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 79 Unrelated during global 80 Assistant surgeon LT Left side RT Right side XS Separate structure

What this code covers

Source · Editorial summary grounded in 7 cited references ↓

CPT 20912 describes the harvest of cartilage from the nasal septum to serve as donor graft material. The code covers the procurement itself — not the implantation or the primary reconstructive procedure at the recipient site. It appears most often alongside rhinoplasty codes (30400–30462, 30520) and laryngeal reconstruction procedures, where septal cartilage provides autogenous structural support.

The code carries a 90-day global period. When billed alongside a primary rhinoplasty or nasal reconstruction code, it must not be bundled into codes that already include obtaining the graft (21230, 21235 explicitly include rib cartilage harvest). Per ASPS guidance, 20912 should not be reported with 30420, 30462, 30520, 21335, or 21336 — those procedures either include the septal work or render the harvest redundant. CMS added 20912 to the rhinoplasty/nasal reconstruction ICD-10 group under Article A59299, effective 11/27/2025, tightening the diagnosis pairing requirements for Medicare coverage.

Top billing specialties are otolaryngology and plastic/reconstructive surgery. Orthopedic coders encounter it less often, but it surfaces when a reconstructive surgeon requests a septal cartilage source for temporomandibular joint or auricular reconstruction performed in conjunction with orthopedic or craniofacial work. Verify that the diagnosis code maps to an eligible Group 6 ICD-10 under A59299 before submitting to Medicare.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	6.38
Practice expense RVU	5.65
Malpractice RVU	1
Total RVU	13.03
Medicare national rate	$435.21
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	$435.21
HOPD (APC 5055) Hospital outpatient department	$3,620.48
ASC (PI A2) Ambulatory surgical center (freestanding)	$1,940.78

Common denial reasons

The recurring reasons claims for CPT 20912 get rejected.

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

Bundling denial when billed alongside 30420, 30462, 30520, 21335, or 21336 — those procedures subsume the septal work
Medical necessity denial when diagnosis does not map to a covered ICD-10 under CMS Article A59299 Group 6 for Medicare claims
Cosmetic exclusion when documentation fails to establish a functional or reconstructive indication rather than aesthetic improvement
Missing or inadequate operative note — audit teams flag notes that do not name the septal harvest site or describe the graft procurement separately from the primary procedure
Global period conflict when billed without modifier 79 during the postoperative period of an unrelated prior surgery

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 7 cited references ↓

01Can 20912 be billed with 30420 or 30462?

No. Per ASPS coding guidance, 20912 should not be reported alongside 30420, 30462, 30520, 21335, or 21336. Those codes subsume the septal work or make the separate harvest redundant.

02Is 20912 modifier 51 exempt?

No. It is not modifier 51 exempt. When reported with a primary rhinoplasty or reconstruction code in a multi-procedure session, append modifier 51 to the lower-valued code per standard multiple-procedure rules.

03What ICD-10 codes support 20912 for Medicare?

CMS Article A59299 (revised 11/27/2025) added 20912 to Group 6, which covers rhinoplasty and nasal reconstruction indications. Use J34.89 for nasal obstruction. Verify your specific diagnosis against the Group 6 ICD-10 list before submitting.

04Does the 90-day global period on 20912 conflict with the companion rhinoplasty code's global?

Both 20912 and primary rhinoplasty codes carry 90-day globals. Routine post-op visits related to either procedure are included in the global. Bill unrelated services during that window with modifier 24 (E/M) or modifier 79 (unrelated procedure).

05When does modifier 22 apply to 20912?

Use modifier 22 when septal harvest is significantly more difficult than usual — for example, prior septal surgery, scarring, or limited available cartilage requiring extended dissection. Document the added time and complexity explicitly in the operative note.

06Can an orthopedic surgeon bill 20912, or is it specialty-restricted?

There is no specialty restriction on 20912. It is billed most often by otolaryngologists and plastic surgeons, but any surgeon who personally performs the septal cartilage harvest may report it, provided the documentation and diagnosis requirements are met.

Sources & references

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

01CMS Physician Fee Schedule 2026
02CMS Article A59299 – Billing and Coding: Cosmetic and Reconstructive Surgery (Rev. 5, effective 11/27/2025): https://www.cms.gov/medicare-coverage-database/view/article.aspx?articleId=59299&ver=12
03American Society of Plastic Surgeons – Nasal Surgery Coding Guide 2021: https://www.plasticsurgery.org/documents/Health-Policy/Reimbursement/insurance-2021-nasal-surgery.pdf
04American Academy of Otolaryngology – Clinical Indicators: Rhinoplasty: http://www.entnet.org/wp-content/uploads/files/Rhinoplasty-CI%20Updated%208-7-14.pdf
05CMS NCCI Medicare Policy Manual 2025: https://www.cms.gov/files/document/2025nccimedicarepolicymanualcompletepdf.pdf
06AAPC Codify – CPT 20912: https://www.aapc.com/codes/cpt-codes/20912
07emedNY Physician Surgery Procedure Codes: https://www.emedny.org/providermanuals/physician/pdfs/physician%20procedure%20codes%20sect5.pdf

Mira AI Scribe

Mira's AI scribe captures the harvest site (nasal septum), graft dimensions, primary procedure performed at the recipient site, and the functional or reconstructive indication from dictation. It flags when the companion code already includes obtaining the graft — preventing a bundling denial before the claim is submitted.

See how Mira captures CPT 20912 documentation