CPT code 64405: Greater occipital nerve block billing 2026
CPT code 64405 bills a single injection of anesthetic, or anesthetic plus steroi...
Last Updated: Sep 3, 2026
Key takeaways
CPT code 30520 reports septoplasty or submucous resection of the nasal septum, with or without cartilage scoring, contouring, or graft replacement.
The 2026 Medicare national average is about $613 at the facility rate, from 18.36 total RVUs times the $33.40 conversion factor.
Coverage turns on medical necessity, so document failed conservative therapy, symptom duration, and objective exam findings before surgery is booked.
CPT 30520 carries a 90-day global period, and same-day turbinate reduction needs modifier 59 or XS plus distinct operative documentation.
Practice management software like Pabau pre-fills the CMS-1500 from the patient record and validates claim-required fields before submission.
CPT code 30520 is the billing code for septoplasty, the surgical repair of a deviated nasal septum. The descriptor covers submucous resection, with or without cartilage scoring, contouring, or a graft.
On the payment side, one figure matters most. CPT 30520 carries 18.36 total RVUs, which works out to roughly $613 at the 2026 Medicare conversion factor.
The coding is where ENT claims come unstuck. Medical necessity, cosmetic reclassification, and same-day turbinate reduction account for most septoplasty denials. Each one is preventable with the right documentation, the right modifier, and a diagnosis code that matches the operative note.
Found our content helpful?
What CPT code 30520 actually covers
The American Medical Association (AMA) publishes the official descriptor for 30520. It reads: “Septoplasty or submucous resection, with or without cartilage scoring, contouring or replacement with graft.”
One code therefore covers several surgical techniques. Which one the surgeon uses depends on what the septum needs once the flaps are elevated.
The septum is the wall of cartilage and bone dividing the two nasal passages. A deviation narrows one side, and patients report obstruction, disturbed sleep, and repeat sinus infections.
CPT 30520 captures the full correction, whether the surgeon resects tissue, scores the cartilage, or places a graft.
What’s bundled in, and what bills separately
- Included: Incision and elevation of the mucoperiosteal flaps, then removal or reshaping of the deviated cartilage and bone
- Included: Cartilage scoring to relieve tension, graft placement where required, and closure
- Included: Endoscopic visualization used as part of the same septal repair, which is not separately billable
- Excluded: Turbinate reduction, reported separately with CPT 30130 or 30140
- Excluded: Cosmetic reshaping of the external nose, which falls in the 30400 to 30420 range
- Excluded: Functional endoscopic sinus surgery, which treats sinus disease rather than the septum
Functional or cosmetic decides whether the claim gets paid
Coverage for CPT code 30520 turns on a single question. Payers cover functional septoplasty and deny the cosmetic version, using the Social Security Act exclusion at Section 1862(a)(10).
Your office notes and operative report therefore have to make the functional purpose obvious.
Commercial payers publish their own medical necessity criteria for septoplasty. Aetna, UnitedHealthcare, and Blue Cross Blue Shield each set thresholds for symptom duration, failed conservative therapy, and objective findings. Those thresholds differ, so read the plan’s medical policy before the case is booked.
What CPT code 30520 pays in 2026
Payment for CPT code 30520 varies by place of service and geographic locality. The CMS Physician Fee Schedule lookup tool returns the current rate for your MAC region.
CMS published the CY2026 final rule on October 31, 2025, and it took effect on January 1, 2026. So the figures below are final.
CMS finalized two conversion factors for the year. Most practices are paid at $33.40 per RVU, while qualifying alternative payment model participants are paid at $33.57.
At the lower factor, 18.36 total RVUs comes to about $613 nationally before any geographic adjustment.
Where 30520’s 18.36 RVUs come from
These figures come from the CMS 2026 relative value files, and CMS revises them every year. Verify the current values in the CMS relative value files, then apply the geographic index for your region.
The split inside that total matters more than the total itself. Practice expense carries the larger share of this code, so the setting and the locality move the fee more than the surgical work does.
Facility rates apply in a hospital outpatient department or an ambulatory surgery center. Non-facility rates apply to in-office procedures, though septoplasty rarely happens outside a surgical facility.
Pro Tip
Re-check CPT 30520 payment every January. CMS updates the fee schedule effective January 1, and MAC contractors issue mid-year guidance that can change what you collect. Pull the current rate from the CMS lookup tool before you reopen payer contract negotiations.
Modifiers that keep a septoplasty claim clean
A missing or wrong modifier is a top denial trigger on septoplasty claims. The AAPC CPT code lookup lists modifier guidance beside each descriptor. Below are the ones that actually come up on 30520.
Billing 30520 and turbinate reduction on the same day
Same-day septoplasty and turbinate surgery is the highest-denial scenario in ENT billing. CPT 30140 covers submucous resection of the inferior turbinate, partial or complete. NCCI lists it in a column 1 and column 2 edit pair with 30520, so the two codes will not pass together unmodified.
The American Academy of Otolaryngology (AAO-HNS) has addressed the pairing directly for turbinate ablation, CPT 30801. Its guidance allows modifier 59 on 30801 to show that the two services were separate. It also tells coders to link a different diagnosis code to each CPT code.
One exception is easy to miss. Do not report 30801 with 30520 when the ablation only controls bleeding caused by the septoplasty. In that situation the cautery belongs to the septal procedure and stays bundled.
The clinical logic behind the edit is straightforward. Septoplasty corrects a structural deviation of the septum, while turbinate surgery treats compensatory hypertrophy of the inferior turbinate. Those are separate structures, and they need separate surgical steps and separate diagnoses.
When modifier 59 applies to 30520 and 30140
- Both procedures are performed and documented as distinct interventions on different anatomical structures
- The operative note describes each procedure on its own, with its own incision, instrumentation, and tissue site
- Modifier 59, or the CMS-preferred XS for a separate structure, goes on the secondary code, usually 30140
- Each CPT line carries its own diagnosis, so J34.2 supports the septoplasty and J34.3 supports the turbinate work
- Some commercial payers bundle 30140 with 30520 whatever modifier you use, so read the plan’s policy first
- NCCI edits change quarterly, so confirm the current edit status before you bill the pair
Nasal codes that sit closest to 30520
ENT billers meet the same cluster of nasal codes in a single operative session. Knowing which one applies prevents undercoding on one claim and an NCCI denial on the next.
The ICD-10 codes that prove medical necessity
Payers validate medical necessity from the diagnosis, so the pairing carries as much weight as the procedure code. A vague or mismatched diagnosis kills the claim before a human reviewer opens it.
Coders who need the surrounding diagnosis families can work from the full ICD-10-CM code library.
Never pair Z41.1, encounter for cosmetic surgery, with CPT 30520 on a claim you expect an insurer to pay. That code signals cosmetic intent and triggers an automatic denial. Every diagnosis on the claim has to match a finding documented in the record.
What your documentation has to prove
Clean septoplasty claims are built long before the patient reaches the operating room. The record has to satisfy the payer’s medical necessity criteria, support each diagnosis code, and hold up in a post-payment audit.
What the pre-op record must show
- Symptom history: Duration, severity, and functional impact of the obstruction, usually documented across three months or more
- Failed conservative therapy: A record of trialed nasal corticosteroids, decongestants, saline irrigation, or allergy treatment
- Physical examination: Anterior rhinoscopy or nasal endoscopy findings that tie the deviation to the patient’s symptoms
- Objective testing: Nasal airflow measurement, acoustic rhinometry, or CT imaging where the payer asks for it
- Medical necessity statement: A short narrative saying the deviation causes functional impairment that needs surgical correction
Inside the operative note
- A distinct description of each surgical step, covering the incision, flap elevation, cartilage and bone management, and any graft
- A separate narrative for every procedure billed, naming the anatomical site each one addressed
- Endoscope use recorded on its own, which does not change the CPT code you report
- Specimen handling, wherever tissue went to pathology
Templates do most of this work for you. An operative note template that prompts the surgeon for each required element cuts the dictation errors that invite a post-payment audit.
When 30520 needs prior authorization
Prior authorization is where the most preventable septoplasty denials begin. Medicare fee-for-service does not require it for CPT 30520. Plans under Medicare Advantage often do, depending on the contract, and so do most large commercial payers.
Aetna, UnitedHealthcare, Blue Cross Blue Shield, and Cigna all ask for authorization on septoplasty in most regions. Requirements still shift by plan tier and by state. So verify with the specific plan before the surgery date goes into the calendar.
Why authorization requests come back refused
- A thin conservative therapy record: the payer wants evidence that medical management was tried and failed
- Symptom duration: many plans want three to six months of documented symptoms before approving elective correction
- No objective findings: the request went in without endoscopy or imaging showing the degree of deviation
- Cosmetic classification: the reviewer read the submitted notes and judged the procedure cosmetic
Pro Tip
Flag CPT 30520 authorization requirements in the scheduling workflow, before the pre-operative appointment. Submitting the request 10 to 14 days ahead of surgery leaves room to answer an initial refusal. That is what protects you from a last-minute cancellation and lost OR time.
The 90-day global period, and what you can still bill
CPT code 30520 carries a 90-day global surgery period. Routine post-operative care tied to the septoplasty is bundled into the surgical fee for those 90 days. Anything billed on top needs a modifier that explains why.
That 90-day window applies to Medicare fee-for-service. Commercial payers may run a different global period, or none at all. Check the global period language in each contract before you schedule follow-up visits.
How a septoplasty claim moves, and where it stalls
A 30520 claim passes through five hands before payment lands, and most denials trace back to one handoff. Here is the route it takes.
- Scheduling: the front desk verifies eligibility and checks whether the plan requires prior authorization for 30520
- Pre-op visit: the surgeon records symptoms, failed therapy, and endoscopy findings, and the authorization request goes out
- Surgery: the operative note describes each procedure separately, and the facility opens a claim of its own
- Coding: a coder assigns 30520, any secondary procedure codes, the modifiers, and a diagnosis for every line
- Submission: the clearinghouse scrubs the claim, the payer adjudicates, and the remittance posts the payment or the denial
Stage four is where the trail usually goes cold. The authorization number lives in the scheduler’s inbox, and the coder never sees it.
Run this before you submit
- The authorization number is on the claim, and it matches the procedure and the date of surgery
- J34.2 sits on the 30520 line, and every secondary procedure has a diagnosis of its own
- Modifier 59 or XS appears on the secondary code, and the operative note supports it
- The place of service matches where the surgery happened, so the right fee schedule applies
- Z41.1 appears nowhere on a claim you expect the payer to reimburse
- The rendering provider, NPI, and referral details are complete
Denials you can predict on a 30520 claim
Septoplasty denials follow a short and repeatable list. Practices that work through it methodically watch their first-pass acceptance rate climb.
- Medical necessity not established. The pre-op notes miss failed conservative therapy, symptom duration, or objective findings. Fix it with a structured pre-op template completed before the case is booked
- Reclassified as cosmetic. The payer reads the documentation and calls the procedure cosmetic. Fix it by stating the functional impairment the patient reports in both the office note and the operative report
- Bundling on 30520 and 30140. Both codes went out without modifier 59 or XS, or without operative detail separating them. Give each procedure its own narrative, because a modifier alone will not override a payer edit
- Unsupported modifier 22. The claim asserts unusual complexity that the operative note never describes. Attach a short letter explaining the additional work whenever you append modifier 22
- Diagnosis mismatch. The billed diagnosis does not support the procedure, often because J34.2 never reached the claim. Reconcile every diagnosis against the operative note before submission
Most of those failures are catchable before the claim leaves the building. Pre-submission scrubbing finds the missing field, the absent modifier, and the mismatched diagnosis while the record is still open.
How claims management software keeps 30520 claims clean
ENT billing teams usually learn about a septoplasty problem after the payer does. The authorization number sits in an email thread. Someone retypes the diagnosis code from the operative note, and the claim leaves with a field missing.
Practice management software like Pabau reverses that order. Pabau’s claims management software pre-fills the CMS-1500 from the patient record. The CPT code attached to the service already sits on the charge line. A diagnosis such as J34.2 is seeded from the recorded problem list.
Coders confirm a descriptor against the built-in CPT and ICD-10 lookup libraries without leaving the claim. Pabau also checks that claim-required fields are complete before the claim can be sent. A missing authorization code surfaces inside the practice, not in a denial letter three weeks later.
For US practices, the Claim.MD integration runs real-time eligibility checks, tracks claim status, and posts electronic remittance advice. Payments and denials land in one dashboard, so billers spend less time in payer portals and the 30520 collection cycle gets shorter.
Send cleaner ENT claims from the patient record
Pabau pre-fills the CMS-1500 from the record, checks claim-required fields before submission, and posts eligibility, status and remittance data through Claim.MD. Fewer septoplasty claims come back for a missing field.
Conclusion
CPT code 30520 pays well for a functional nasal procedure, and it is denied for reasons you can see coming. The functional versus cosmetic call, the NCCI pair with turbinate reduction, and the 90-day global period account for most of the trouble.
So build the controls into the workflow instead of the appeal. Verify authorization at scheduling, template the pre-op note, and give every procedure line its own diagnosis code. Those three habits cost far less than working a denial after the fact.
Pabau keeps those checks in the record where the claim is built, from the pre-op note through to the remittance. Book a demo to see how it handles ENT billing from scheduling all the way to payment.
Continue your research
Need the turbinate side of the same operative session? CPT code 30140 covers submucous resection of the inferior turbinate and the edits that come with it.
Want to see how a claim reaches the payer? Medical claims clearinghouse explained follows a claim from the practice to adjudication and shows where errors get caught.
Reading denials off the remittance? Electronic remittance advice explains how to read an ERA and spot denial patterns before they repeat.
Submitting professional claims electronically? The 837 file format explained walks through the transaction standard behind every CPT surgical claim.
Working a backlog of septoplasty denials? Denial management in healthcare sets out a process for triaging, appealing and preventing repeat denials.
Frequently asked questions
Which place-of-service code goes on a 30520 claim?
Use the code for where the surgery actually happened. Place of service 21 covers inpatient hospital, 22 covers hospital outpatient, and 24 covers an ambulatory surgery center. The place of service decides whether Medicare pays the facility or non-facility rate, so a mismatch changes what you collect.
Does the hospital or ASC bill CPT 30520 as well?
The facility bills its own claim, separately from yours. You report 30520 on a CMS-1500 under the physician fee schedule. The hospital or surgery center bills its own charges under the outpatient or ASC payment system. One procedure therefore produces two claims.
What modifier applies when a septoplasty patient returns to the operating room?
Modifier 78 covers an unplanned return to the operating room for a related procedure inside the global period. Payment covers the intraoperative work only, and the original 90-day period keeps running. Use modifier 58 instead where the second procedure was planned from the start.
Can you bill 30520 when the patient also wants cosmetic rhinoplasty?
Yes, provided the functional and cosmetic work are documented as separate procedures. Bill 30520 to the payer, then collect the cosmetic portion from the patient under a signed financial agreement. Where the septal repair is part of the rhinoplasty itself, report 30420 instead.
Found our content helpful?
