CMS Physician Fee Schedule
The published Medicare rates and payment rules behind most of the codes on this page.
Read the sourceENT billing hinges on functional endoscopic sinus surgery (FESS) bundling, audiometry 26/TC component splits, and PE-tube bilateral modifier 50 rules. Add diagnostic nasal endoscopy frequency limits and laryngoscopy medical necessity, and general billers miss revenue on every procedure. MedFactor delivers ENT-specific RCM that protects every claim.
From rhinology and sinus surgery to otology and pediatric ENT, we tailor billing to the coding rules of every otolaryngology subspecialty.
FESS (31256/31267), septoplasty (30560), turbinate reduction (30140), and balloon sinus dilation with NCCI bundling accuracy.
Audiometry (92557), tympanometry (92567), PE tubes (69436), and vestibular testing with 26/TC component splits.
Laryngoscopy (31575), vocal-fold procedures, and swallowing evaluation with medical-necessity documentation.
Tonsillectomy/adenoidectomy, PE tubes, and age-based E/M with bilateral and modifier accuracy for pediatric cases.
Excision and reconstruction of head and neck lesions with staged-procedure modifier 58 and global-period tracking.
Immunotherapy vial preparation, testing, and injection billing with proper supply and administration capture.
Functional endoscopic sinus surgery is billed as a base procedure plus add-on codes per sinus cavity, and separately reportable procedures must use the right modifiers or they’re denied as bundled. This is the largest source of ENT surgical denials.
One FESS session bundles multiple sinus cavities under one primary code, while septoplasty and turbinate work bill separately with modifier 51.
ENT billing is governed by FESS bundling, audiology component splits, and bilateral rules that general billing companies cannot navigate effectively.
Additional sinus cavities (frontal, sphenoid) billed under the base FESS code instead of as add-ons, losing per-cavity revenue.
Septoplasty and turbinate reduction denied as bundled into FESS when billed without modifier 51 for distinct procedures.
Audiometry and vestibular testing denied when the professional (26) and technical (TC) components aren’t split per payer rules.
Bilateral PE-tube insertion (69436) billed without modifier 50, losing the bilateral payment adjustment.
Diagnostic nasal endoscopy (31231) denied when billed more frequently than payer medical-necessity limits allow.
Laryngoscopy (31575) denied for medical-necessity gaps or billed without modifier 25 when paired with same-day E/M.
Quick reference for the most frequently used codes in otolaryngology billing and coding.
| Code | Description | Common Use |
|---|---|---|
| 31267 | FESS with tissue removal (ethmoidectomy) | Base sinus surgery code |
| 31256 | FESS, maxillary antrostomy | Add-on sinus cavity |
| 31231 | Diagnostic nasal endoscopy | Nasal/sinus evaluation |
| 69436 | Myringotomy with tube insertion | PE tube placement |
| 92557 | Comprehensive audiometry | Hearing threshold testing |
| 92567 | Tympanometry | Middle-ear function testing |
| 30560 | Septoplasty | Deviated septum correction |
| 30140 | Submucous resection, turbinate | Turbinate reduction |
| 31575 | Diagnostic laryngoscopy | Voice / airway evaluation |
| 31297 | Balloon sinus dilation (catheter) | Balloon sinuplasty |
| Code | Description | Clinical Context |
|---|---|---|
| J32.x | Chronic sinusitis | FESS indication |
| J01.x | Acute sinusitis | Acute sinus treatment |
| J33.x | Nasal polyps | Polyp excision / FESS |
| J34.2 | Deviated nasal septum | Septoplasty indication |
| H66.x | Otitis media | PE tube indication |
| H90.x | Conductive / sensorineural hearing loss | Audiometry / hearing |
| J35.x | Tonsil / adenoid hypertrophy | Pediatric ENT surgery |
| J38.x | Vocal cord paralysis / disorder | Laryngology |
| H81.x | Vertigo / vestibular disorder | Vestibular testing |
| R13.x | Dysphagia | Swallowing evaluation |
| Modifier | Description | ENT Application |
|---|---|---|
| 25 | Separate E/M same day | E/M with same-day endoscopy / laryngoscopy |
| 50 | Bilateral procedure | Bilateral PE tubes, bilateral FESS cavities |
| 51 | Multiple procedures | Septoplasty / turbinate with FESS same session |
| 59 | Distinct procedural service | Distinct endoscopic procedures same session |
| 26 | Professional component | Audiometry / vestibular interpretation |
| TC | Technical component | Audiometry / vestibular equipment / testing |
| 22 | Increased procedural service | Unusually complex sinus surgery |
| XS | Separate structure | Distinct anatomical sinus procedures |
Comprehensive revenue cycle management designed specifically for otolaryngology practices.
Specialty coders handle FESS bundling, audiology 26/TC splits, PE-tube modifier 50, and laryngoscopy necessity with accuracy.
FESS bundling defense, audiology component-split corrections, and appeals with procedural documentation for ENT denials.
Pre-procedure authorization for sinus surgery, hearing devices, balloon sinuplasty, and head-and-neck procedures.
Prioritized follow-up on aged FESS, audiology, and PE-tube claims with strategic payer escalation to maximize recovery.
Regular audits focused on FESS add-on capture, modifier 50/51/59, audiology 26/TC, and endoscopy frequency limits.
Real-time dashboards tracking sinus-surgery volume, audiometry component billing, and physician productivity.
Understanding the most common denial reasons is the first step to preventing them on sinus, ear, and airway claims.
Additional sinus cavities billed under the base code instead of as add-ons, losing per-cavity surgical revenue.
Per-cavity add-on sequencing with the highest-valued FESS code as the base procedure.
Distinct procedures denied as bundled into FESS when billed without modifier 51.
Modifier 51 for distinct procedures same session, preserving legitimately separate sinus work.
Audiometry and vestibular testing denied when 26/TC components aren’t split per payer rules.
Payer-specific 26/TC splits with correct component billing on every audiology claim.
Bilateral PE-tube insertion billed without modifier 50, losing the bilateral payment adjustment.
Modifier 50 applied on every bilateral PE-tube insertion per payer bilateral rules.
Identifying and plugging these common revenue leakage points can significantly improve your practice’s bottom line.
Frontal/sphenoid sinusotomies not billed as add-ons to the base FESS procedure.
Bilateral PE tubes billed without modifier 50, losing the bilateral payment.
Audiometry technical component not billed separately where the payer requires a split.
Diagnostic nasal endoscopy billed beyond payer limits and denied without necessity support.
See how ENT-specific revenue cycle management transforms your practice’s financial performance.
A structured onboarding process designed to deliver measurable improvements within the first 90 days.
Review of ENT billing operations, FESS add-on capture, audiology splits, and revenue cycle baseline.
EMR and audiology-system integration, dedicated ENT billing team, and payer enrollment verification.
Full billing with real-time claim submission, modifier verification, and denial prevention protocols.
Performance review against baseline, workflow optimization, and documented revenue improvement.
How our ENT-specific approach compares to in-house billing and general medical billing companies.
| Capability | In-House Team | General Billing Co. | MedFactor ENT |
|---|---|---|---|
| FESS sinus-cavity add-on capture | Inconsistent | ✕ | ✓ |
| Septoplasty / turbinate modifier 51 | ✕ | ✕ | ✓ |
| Audiology 26/TC component splits | Inconsistent | ✕ | ✓ |
| Bilateral PE-tube modifier 50 | ✕ | ✕ | ✓ |
| Endoscopy frequency tracking | Manual | Partial | ✓ |
| Laryngoscopy medical necessity | Inconsistent | Partial | ✓ |
| Balloon sinuplasty prior auth | Manual | Partial | ✓ |
| Sinus add-on capture reporting | ✕ | ✕ | ✓ |
| Dedicated ENT billing team | ✕ | ✕ | ✓ |
Our team combines deep otolaryngology billing expertise with the technology and processes to deliver consistent, measurable results for sinus, ear, and airway practices.
Discover exactly where your ENT practice is losing revenue. Our no-obligation audit analyzes your FESS add-on capture, audiology splits, and modifier compliance.
Real results from otolaryngology practices that partnered with MedFactor for specialty revenue cycle management.
A rhinology practice was billing additional sinus cavities under the base FESS code and dropping septoplasty modifier 51. MedFactor implemented per-cavity add-on sequencing, recovering substantial surgical revenue in seven months.
An audiology-heavy ENT practice was losing the technical component on audiometry by billing globally. MedFactor implemented payer-specific 26/TC splits, recovering technical-component revenue per test.
A pediatric ENT group was billing bilateral PE tubes without modifier 50 and missing tonsillectomy global rules. MedFactor implemented bilateral modifier protocols that protected bilateral procedure revenue.
No matter where your otolaryngology practice operates, our team understands the payer landscape and regulatory requirements in your region.
Deep coding knowledge across Medicare, Medicaid, and all major commercial payers for ENT services.
Hearing-test coverage and 26/TC component rules applied correctly across all 50 states.
Facility and professional billing coordination across hospital-based sinus and ear surgery.
State Medicaid pediatric ENT coverage and bilateral rules for tubes and tonsillectomy.
Common questions from otolaryngology practices considering MedFactor’s specialty RCM services.
Functional endoscopic sinus surgery (FESS) is billed as one base procedure code for the primary sinus work plus an add-on code for each additional sinus cavity opened in the same session, for example 31267 (ethmoidectomy with tissue removal) as the base, with 31256 (maxillary antrostomy), 31276 (frontal sinusotomy), and 31287 (sphenoid sinusotomy) as add-ons. The highest-valued code is typically sequenced first. We capture every cavity as the correct add-on rather than bundling them under the base code, which is the most common way FESS revenue is lost.
Septoplasty (30560) and submucous turbinate reduction (30140) are distinct procedures from FESS and are billed separately in the same session with modifier 51 (multiple procedures) where the payer requires it. Some NCCI edits restrict billing certain combinations together, so we verify the edit pairs before submission. When septoplasty and turbinate work are legitimately performed with FESS, modifier 51 preserves the separate procedure payment; without it, those codes are denied as bundled into the sinus surgery.
Audiometry (92557), tympanometry (92567), and vestibular testing codes have a professional component (interpretation, modifier 26) and a technical component (equipment and testing, modifier TC). When a physician interprets a test performed by a technician or outside facility, only the 26 is billed. When the practice owns the equipment and performs the test, the TC or global component is billed per payer rules. Medicare requires the components split when a facility is involved. We apply the correct 26/TC split per payer so neither the technical nor professional revenue is lost to a global-only denial.
Myringotomy with tube insertion (69436) has a bilateral indicator of 1, so when PE tubes are placed in both ears during the same session, modifier 50 is appended and most payers pay 150% of the fee schedule. Billing two separate lines or omitting modifier 50 causes underpayment or denial. We verify the payer’s bilateral indicator and submission format, some payers want one line with modifier 50, others want two units, so bilateral PE-tube placement is paid at the correct bilateral rate.
Diagnostic nasal endoscopy (31231) is subject to payer frequency limits, many payers cover it a limited number of times per year for a given diagnosis, and repeat endoscopy beyond the limit is denied without documented medical necessity. We track endoscopy frequency per patient and pair each claim with the supporting diagnosis (such as J32 chronic sinusitis or J33 nasal polyps) and necessity documentation so endoscopy is paid rather than denied for frequency overage.
We integrate with all major ENT and audiology platforms including Epic, Cerner, Athenahealth, EncounterPro, and audiology diagnostic systems, plus practice management systems. Our team works with your sinus-surgery documentation, audiogram data, and endoscopy reports so procedure detail flows cleanly to correct claim submission, including the sinus-cavity add-on detail and audiology component splits that drive accurate ENT coding.
MedFactor applies the same code-level precision across the full practice spectrum. See how we bill these related specialties.
CPT®, ICD-10, HCPCS, and modifier codes referenced on this page reflect the current code sets and are subject to annual updates — always verify against the current-year fee schedule before submission. KPIs and case-study figures shown are representative benchmarks, not guarantees of individual practice results.
The rules on this page are published somewhere official. These are the ones worth reading yourself.
The published Medicare rates and payment rules behind most of the codes on this page.
Read the sourceThe rules governing referrals between a practice and its own ancillary services.
Read the sourceThe coding and billing standards body whose credentials most billers and coders hold.
Read the sourceEnforcement guidance on billing compliance, and the arrangements that attract scrutiny.
Read the sourceThe procedure-to-procedure and medically unlikely edits behind most bundling denials.
Read the sourceThe specialty society covering sinus surgery, audiology and scope documentation.
Read the sourceYour ENT practice deserves billing partners who know FESS add-on coding, audiology 26/TC splits, and bilateral PE-tube modifier 50, and code every claim correctly. Let MedFactor show you what specialty RCM can do.