Specialty
ENT billing services
ENT billing services turn an otolaryngology day of scopes, ear procedures, hearing tests and allergy shots into claims that hold up: surgical sinus endoscopy coded by side with the diagnostic look left inside it, modifier 50 or 52 wherever the side or the ear sets the payment, audiology billed under Medicare's order and supervision rules, antigen doses counted the way the fee schedule prices them, and hospital rhinoplasty authorized before the date.
See where claims are getting stuck. No patient data needed.
Remitwright gives ENT practices a dedicated biller who checks each claim against those rules and works denials back to the note.
ENT billing is one of Remitwright's specialty billing services, each set out with its own code families, denial reasons and payer rules.
Last reviewed by the Remitwright billing team. Editorial policy
- 30130
- 30901-30905
- 31237-31294
Denials
Why ENT claims get denied
The reasons that come up most on ENT remittances, with the usual cause and the fix. Code explanations are our own; the official list is maintained by X12.
| Code | Reason | Usual cause | The fix |
|---|---|---|---|
| CO-97 | Part of the procedure already paid | A diagnostic nasal endoscopy billed with a surgical sinus endoscopy on the same side, a biopsy billed with the polyp removal it came from, or sinus lavage billed with surgery on that sinus | The operative note read side by side against the NCCI edits, with only the surgical work and any separate contralateral work on the claim |
| CO-231 | Two procedures that exclude each other | Flexible and direct laryngoscopy billed for the same encounter, or both turbinate cautery codes billed for one session | The single procedure that describes what was done kept, chosen from the note rather than the charge sheet |
| CO-151 | More units than the payer accepts | A hearing test billed with two units for two ears, allergy tests counted with the positive and negative controls, or more than 10 doses billed from one multidose antigen vial | Units set by each code's rule before release: one unit per test for both ears, controls left out, and a ceiling of 10 doses per vial |
| CO-119 | Limit for the period already used | A second audiology visit billed with modifier AB within 12 months of the last one, when the patient came in again without an order | The date of the last AB claim checked before the visit, and an order obtained when the direct access visit is already used |
| PR-96 | Service Medicare does not cover | Hearing aid evaluations, fittings or the devices themselves billed to Original Medicare, which excludes them | The patient told before the visit and the service billed to the patient or to a plan that covers hearing aids |
| CO-197 | Authorization absent | Sinus surgery or another scheduled procedure done without the authorization a commercial or Medicare Advantage plan requires for it | Authorization requested when the case is booked, with the approved codes and dates checked against the operative note before billing |
Codes
Common ENT codes and modifiers
Code families by number with our own one-line explanations. CPT descriptors belong to the AMA and are not reproduced here.
| Codes | What the family covers |
|---|---|
| 30130, 30801, 30802 | Inferior turbinate reduction by excision, by surface cautery or ablation, or by deeper intramural work. The two cautery codes never go together and are not billed for access or to stop bleeding, and an excision done only to reach the sinuses for an orbital decompression is part of that operation. |
| 30901-30905 | Control of a nosebleed at the front or back of the nose. Bleeding from the practice's own nasal or sinus procedure belongs to that procedure; a trip back to the operating room for postoperative bleeding is billed with modifier 78. |
| 31237-31294 | Surgical nasal and sinus endoscopy, from biopsy and polyp work through ethmoid, maxillary, frontal and sphenoid surgery to orbital and optic nerve decompression. The diagnostic endoscopy is included, and lavage of a sinus is part of a definitive procedure on that same sinus. |
| 69209, 69210, G0268 | Removal of impacted cerumen by irrigation or with instruments, one ear per code, and the HCPCS code a physician uses when impacted wax has to be removed on the same day as audiologic testing. Wax an audiologist clears before testing is not billed at all. |
| 69420, 69421, 69433, 69436 | Myringotomy and tympanostomy tube placement. A myringotomy is part of a tympanostomy or tympanoplasty, and middle ear exploration and eardrum procedures are part of any operation reached through the eardrum. |
| 92550-92588 | Audiologic function tests. Each code covers both ears with one unit, a single ear takes modifier 52, and tests in the 92552-92557 group count only when calibrated electronic equipment was used. |
| 95004-95078, 95115, 95117, 95144-95170 | Allergy testing priced per test, with the number of tests in the units field, and immunotherapy split into the injection codes and the antigen preparation codes, the latter billed by the number of doses. |
Modifiers that matter
- 50
- The same procedure on both sides at one session when the code describes one side, reported on one line with one unit. Codes that already say bilateral take no 50, and the single-line rule does not apply to non-surgical diagnostic tests.
- 52
- An audiologic function test done on one ear only, since each test code assumes both ears were tested.
- 25
- A significant, separate evaluation on the day of an in-office endoscopy or other minor procedure. The decision to do the minor procedure is part of it and does not support a visit on its own.
- 78
- A return to the operating room in the postoperative period for a related problem, such as bleeding after sinus surgery. Bleeding controlled without going back to the operating room is not billed.
- AB
- Audiology tests an audiologist personally performs without a physician or NPP order, for a non-acute hearing problem and not for dizziness or imbalance, once in any 12 months.
Payers
Payer notes
- Medicare and NCCILooking at the access regions during a nasal, sinus or airway endoscopy is part of the procedure. A biopsy taken with a more extensive nasal or sinus procedure is billed only when its pathology result was read first and decided the larger operation, and control of bleeding is part of every endoscopic procedure.1
- MedicareSince January 1, 2023, a patient can see an audiologist without an order once every 12 months for tests the audiologist personally performs for non-acute hearing conditions, billed with modifier AB. Tests for disequilibrium still need an order, audiologists cannot bill therapeutic services such as auditory rehabilitation, and hearing aids are not covered.5
- MedicareAudiology tests that a physician, audiologist or NPP does not perform personally must be done under direct physician supervision. Technicians may record objective results but may not interpret them, and the interpretation is paid inside the test itself.4
- Medicare and NCCIAudiologic function tests 92550-92588 include both ears, so one unit is billed for both and modifier 52 for one. Tests in the 92552-92557 group are reportable only when calibrated electronic equipment is used; a qualitative check is part of the visit.3
- MedicareAllergy tests are paid per test, so 25 prick tests are 25 units. Immunotherapy is billed as an injection code plus antigen doses, the complete-service codes 95120-95134 are not valid, antigen doses are counted as planned when the vial was prepared, and no more than 10 doses are billed from one multidose vial.4
- MedicareRhinoplasty in a hospital outpatient department has needed prior authorization since July 1, 2020. The hospital submits the request, and since January 1, 2025 decisions are due within 7 calendar days, or 2 business days for an expedited request.6
Authorizations
Original Medicare's prior authorization program for hospital outpatient services includes rhinoplasty and botulinum toxin injections, and the hospital makes the request. Most of its other control over ENT claims comes at claim time, through the NCCI edits on endoscopy, the order and supervision rules for audiology and the unit rules for allergy services. Commercial and Medicare Advantage plans keep their own lists, which can take in sinus surgery, sleep and airway procedures and imaging, and each plan changes its list on its own schedule. Your biller keeps the list by payer and code, requests authorization when the case is booked and checks the approved codes against the operative note before the claim goes out.
Documentation traps
- A sinus endoscopy note that lists the sinuses opened without the side for each, when side decides the lines and modifiers
- A biopsy taken during polyp removal recorded as its own procedure, when the tissue came from the surgery itself
- No order on file for an audiologist's hearing test outside the once-a-year direct access visit
- Allergy test counts that include the positive and negative controls
- Antigen vials billed by the doses actually given rather than the doses planned when the vial was mixed
- Postoperative bleeding treated in the office but charted as a return to the operating room, or the other way round
What a specialist checks
Specialist or generalist for ENT billing?
A generalist biller can enter an ENT claim. Whether it pays turns on three things specific to ENT billing, and a specialty-aware biller checks each one.
Code families
Each family billed with what the chart has to show for it.
- 30130, 30801, 30802
- 30901-30905
- 31237-31294
Modifiers
Applied only where the note supports them, line by line.
- 50
- 52
- 25
If you are moving from another billing company or an in-house biller, switching billing companies follows a plan: the old and new processes run side by side until the new one is proven, and every login and every ENT claim stays in your name.
What we handle
What we handle for ENT practices
- Medical codingCPT, ICD-10 and modifiers assigned correctly
- Eligibility verificationCoverage and benefits checked before visits
- Prior authorizationAuths requested, tracked, attached to claims
- Claim submissionScrubbed, submitted and tracked to acceptance
- Denial managementEvery denial read, worked and appealed
- Payment postingERAs and EOBs posted, variances flagged
A dedicated biller with named cover, working inside your system and reporting to you on one written page. How it works sets out the five stages.
Worked example: the antigen vial billed at 20 doses
An ENT practice that runs its own allergy clinic mixes 10 cc multidose vials of pollen and mold antigens. Its nurses draw 0.5 cc aliquots, so the charge sheet bills 20 doses of 95165 per vial, and the antigen lines start coming back denied for units.
The biller reads the fee schedule rule: the price for a multidose vial assumes 10 doses of 1 cc, whatever size the aliquots are, so no more than 10 doses are billed from one vial. Open claims are corrected to 10 doses a vial, the charge sheet is changed so a vial prepared is billed once at its planned doses, and the injection codes stay on their own lines as before.
Software
Systems ENT practices usually run
Your biller works inside your system as a user you create. All the systems we work in.
Questions
Questions about ENT billing
Can we bill a diagnostic nasal endoscopy with sinus surgery?
How are hearing tests billed when only one ear is tested?
Can a patient see our audiologist without an order?
How are allergy tests and antigen vials counted?
How is cerumen removal billed on the day of a hearing test?
Does Medicare need prior authorization for rhinoplasty?
What does an ENT practice give its biller to start?
Next step
See where your ENT claims are getting stuck.
Three quick questions. No patient data. A billing specialist reads every request and replies in writing.
- Three questions, about two minutes
- No patient data, no software to buy
- A written reply from a biller, not a sales deck
You answer three questions
A billing specialist reads them
A written reply by email
Prefer email? sales@remitwright.com
Request received
Thanks. Your review request is in.
Reference . Quote it if you write to us about this request.
- A billing specialist reads your answers and replies by email.
- If a look at real claims makes sense, we agree read-only access under a BAA first.
- You get a written summary of what is worth working and what it would take. No commitment.
While you wait: see the sample weekly report or read how switching works. You can also download the sample weekly report (PDF).