ModifiedBlue Cross of IdahoPolicy MP 7.01.663

Treatment of Nasal Valve Collapse and Nasal Septal Swell Bodies

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Coverage and investigational status for surgical treatment of nasal valve collapse, including surgical cartilage graft repair of nasal vestibular stenosis or alar collapse and procedures involving nasal septal swell bodies.

Policy Summary

PayerBlue Cross of Idaho

PolicyTreatment of Nasal Valve Collapse and Nasal Septal Swell Bodies

Policy CodePolicy N/A

Change TypeModified

Effective DateAugust 1, 2026

Last ReviewApr 30, 2026

Next Review DateN/A

Key ActionSubmit documentation showing chronic nasal obstruction, the diagnosis of vestibular stenosis or alar collapse, and improved airflow demonstrated by a positive Cottle maneuver or upper lateral cartilage lateralization.

SourceLink

POLICY UPDATE CHANGES

The investigational policy statement regarding radiofrequency ablation of nasal tissue was removed because the service is addressed under MP 7.01.156, Radiofrequency Volumetric Tissue Reduction for Nasal Obstruction.

The April 2026 revision added language clarifying treatment involving reduction of nasal swell bodies.

3Medical-necessity criteria for surgical cartilage graft procedures

2Accepted methods for demonstrating improved nasal airflow

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ModifiedBlue Cross of IdahoPolicy MP 7.01.663

Treatment of Nasal Valve Collapse and Nasal Septal Swell Bodies

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Policy Summary

PayerBlue Cross of Idaho

PolicyTreatment of Nasal Valve Collapse and Nasal Septal Swell Bodies

Policy CodePolicy N/A

Change TypeModified

Effective DateAugust 1, 2026

Last ReviewApr 30, 2026

Next Review DateN/A

SourceLink

POLICY UPDATE CHANGES

The April 2026 revision added language clarifying treatment involving reduction of nasal swell bodies.

3Medical-necessity criteria for surgical cartilage graft procedures

2Accepted methods for demonstrating improved nasal airflow

Alternative causes that must be ruled out

3Investigational treatment categories

Coverage Criteria

Surgical cartilage graft procedures for nasal valve collapse

Nasal valve procedures or repair of nasal vestibular stenosis or alar collapse with surgical cartilage graft procedures are medically necessary when ALL of the following criteria are met.

Medical necessity for surgical cartilage graft repair

Chronic symptomatic obstruction: Chronic nasal obstruction, such as nasal congestion, facial pain or pressure, mouth breathing, headache, or sleep disturbance, due to vestibular stenosis or alar collapse.
Improved nasal airflow
- Positive Cottle maneuver: A positive Cottle maneuver.
- Upper lateral cartilage lateralization: Lateralization of the upper lateral cartilage from inside the nose with an object such as a swab or nasal speculum.
Alternative causes excluded: Documentation shows that other causes have been ruled out as the primary cause of nasal obstruction, including sinusitis, allergic rhinitis, vasomotor rhinitis, nasal polyposis, adenoid hypertrophy, nasopharyngeal masses, nasal septal deviation, turbinate hypertrophy, and choanal atresia.

Investigational procedures

The following services are considered investigational.

Investigational services

Absorbable lateral nasal implant: Insertion of an absorbable lateral nasal implant for treatment of symptomatic nasal valve collapse, such as Latera.
Nasal valve suspension for repair of nasal valve collapse.
Nasal septal swell body reduction: Ablation, coblation, shaving, or other methods of reduction of nasal septal swell bodies for sinonasal disease such as chronic rhinitis or sinusitis, or for nasal obstruction.

Absorbable lateral nasal valve implant

Evidence is insufficient to determine improvement in net health outcome.

Absorbable lateral nasal valve implant: For symptomatic nasal obstruction due to internal nasal valve collapse treated with an absorbable lateral nasal valve implant, the evidence is insufficient to determine that the technology improves the net health outcome.

Evidence includes one randomized controlled trial with a 24-month uncontrolled follow-up phase and three nonrandomized prospective single-cohort studies. Although studies reported improvement in nasal obstruction scores, follow-up loss was high, over half of the sham group were responders at 3 months, adverse events were common, device retrievals or extrusions occurred in larger cohorts, and no study compared the implant with inferior turbinate reduction and/or septoplasty.

Nasal valve suspension

Evidence is insufficient to determine improvement in net health outcome.

Nasal valve suspension: For nasal valve suspension intended to reduce symptomatic nasal obstruction due to internal nasal valve collapse, the evidence is insufficient to determine that the technology improves the net health outcome.

Well-designed controlled studies with long-term results, including randomized controlled studies, are needed.

Radiofrequency ablation of nasal tissues

Evidence is insufficient to determine improvement in net health outcome.

Radiofrequency ablation of nasal tissues: For radiofrequency ablation of nasal tissues intended to reduce symptomatic nasal obstruction due to internal nasal valve collapse, the evidence is insufficient to determine that the technology improves the net health outcome.

Well-designed controlled studies with long-term results, including randomized controlled studies and researchers free of conflicts of interest, are needed.

Nasal septal swell bodies

Evidence is insufficient to determine improvement in net health outcome.

Nasal septal swell body reduction: For reduction of nasal septal swell bodies intended to reduce symptomatic nasal obstruction, the evidence is insufficient to determine that the technology improves the net health outcome.

Well-designed controlled studies with long-term results, including randomized controlled studies, are needed.

Ablation of nasal masses or neoplasms is not considered in this policy review. This policy addresses treatment of nasal valve collapse and nasal septal swell bodies, rather than ablation of nasal masses or neoplasms.

Coding and Clinical Measures

FDA Regulatory Identifiersmixed

K161191	FDA 510(k) number for LATERA absorbable nasal implant
NHB	FDA product code for LATERA absorbable nasal implant

Clinical Trial Identifiermixed

NCT03400787

Clinical trial identifier for the Stolovitzky et al. randomized controlled trial

CPTCPT

30117	Excision or destruction (e.g., laser), intranasal lesion; internal approach.
30465	Repair of nasal vestibular stenosis (e.g., spreader grafting, lateral nasal wall reconstruction).
30468	Repair of nasal valve collapse with subcutaneous/ submucosal lateral wall implant(s) (e.g., Latera®).

HCPCSHCPCS

N/A

ICD-10-CMICD-10Experimental

J34.89	Investigational for applicable diagnoses; Other specified disorders of nose and nasal sinuses.
J34.9

ICD-10-PCSICD-10

Unspecified disorder of nose and nasal sinuses.

NOSE severity classification

Mild obstructionNOSE score 5-25

Moderate obstructionNOSE score 30-50

Severe obstructionNOSE score 55-75

Extreme obstructionNOSE score 80-100

Provider Documentation and Coverage Actions

Documentation Required

Document Symptoms, Diagnosis, and Airflow Response

Document chronic nasal obstruction symptoms and the diagnosis of nasal vestibular stenosis or alar collapse. Show improvement in nasal airflow with either a positive Cottle maneuver or lateralization of the upper lateral cartilage from inside the nose using an object such as a swab or nasal speculum.

Record relevant symptoms, which may include nasal congestion, facial pain or pressure, mouth breathing, headache, and sleep disturbance.
Document the clinical diagnosis and the airflow-response method and result.

Documentation Required

Rule Out Alternative Causes

Before requesting coverage for surgical cartilage graft repair, submit documentation showing that other primary causes of nasal obstruction have been ruled out.

Consider and document exclusion of sinusitis, allergic rhinitis, vasomotor rhinitis, nasal polyposis, adenoid hypertrophy, nasopharyngeal masses, nasal septal deviation, turbinate hypertrophy, and choanal atresia.

Clinical Background

Nasal obstruction is a patient’s sensation of reduced or insufficient nasal airflow and may result from structural, inflammatory, traumatic, postsurgical, or congenital conditions. The internal nasal valve is the narrowest portion of the nasal airway and contributes substantially to airway resistance; weakening or collapse of the lateral nasal cartilage may increase resistance and produce symptomatic obstruction. Clinical assessment may include the Cottle or modified Cottle maneuver to determine whether supporting or widening the nasal valve improves airflow. Swelling of the nasal septal swell body may also interfere with airflow and contribute to obstruction.

Definitions and Abbreviations

Nasal obstruction

DefinitionA sensation of reduced or insufficient airflow through the nose.

Typical presentationPatients commonly report nasal congestion or stuffiness.

History patternUnilateral symptoms are more suggestive of structural causes; diurnal or seasonal variation is associated with allergic conditions.

Internal nasal valve

Anatomic locationThe narrowest portion of the nasal airway.

BoundariesIt is bordered by the collapsible soft tissue between the upper and lower lateral cartilages, the anterior end of the inferior turbinate, and the nasal septum.

Policy Summary

PayerBlue Cross of Idaho

PolicyTreatment of Nasal Valve Collapse and Nasal Septal Swell Bodies

Policy CodePolicy N/A

Change TypeModified

Effective DateAugust 1, 2026

Last ReviewApr 30, 2026

Next Review DateN/A

SourceLink

On This Page

Prior Authorization

Provide Photographs When Requested

Color photographs may be requested to clearly document internal and/or external nasal valve collapse as the primary cause of an anatomic mechanical nasal airway obstruction consistent with the clinical examination.

Provide the requested internal and/or external valve-collapse photographs when applicable.

Denial Risk

Investigational Nasal Valve and Septal Swell Body Procedures

Coverage is unavailable under this policy for investigational nasal valve and nasal septal swell body procedures.

Absorbable lateral nasal implants for symptomatic nasal valve collapse, such as Latera®, are investigational.
Nasal valve suspension for repair of nasal valve collapse is investigational.
Ablation, coblation, shaving, or other reduction of nasal septal swell bodies for sinonasal disease or nasal obstruction is investigational.
Ablation of nasal masses or neoplasms is not addressed in this review.

Denial Risk

Failure to Meet Medical-Necessity Criteria

Surgical cartilage graft procedures may fail medical-necessity review when the record does not establish the required diagnosis, symptoms, airflow improvement, or exclusion of other primary causes of nasal obstruction.

Document chronic nasal obstruction due to vestibular stenosis or alar collapse.
Document a positive Cottle maneuver or improvement after lateralization of the upper lateral cartilage.
Show that alternative primary causes have been ruled out.
Provide requested photographs when needed to confirm internal or external valve collapse.

Billing Rule

Code Listing Does Not Guarantee Coverage

The code listing is provided for general reference and may not be all-inclusive. Inclusion of a code does not guarantee or imply member coverage or provider reimbursement, and exclusion of a code does not mean coverage or reimbursement is unavailable.

Coverage is determined by the member-specific benefit plan and applicable terms and conditions, including this medical policy, legal requirements, and other policies and guidelines.
Review the member's benefit documentation and applicable coding and reimbursement requirements before billing.

Clinical significance

It accounts for at least half of nasal airway resistance, so even minor further narrowing can cause symptomatic obstruction.

Cottle maneuver

TechniqueGently pull the cheek on the symptomatic side laterally with one to two fingers.

Positive responseReduced symptoms with inspiration suggest that widening the nasal valve improved airflow from a collapsed state.

InterpretationThe maneuver is subjective and can be performed by the individual without an examiner.

Modified Cottle maneuver

AssessmentA clinician-supported examination of nasal valve function.

TechniqueA cotton swab or curette is inserted into the nasal cavity to support the nasal cartilage.

Positive responseImprovement in symptoms with inspiration supports nasal valve involvement; a change in the external contour of the lateral nose may also be visible.

Nasal septal swell body

Anatomic locationA structure in the anterior part of the nasal septum.

CompositionIt contains bone, cartilage, and swell tissues covered by a mucosal lining.

Role in obstructionSwelling of the structure can interfere with nasal airflow.

Nasal valve collapse

DefinitionA structural cause of nasal obstruction involving the internal nasal valve, also called zone 1.

DistributionIt may be unilateral or bilateral.

Typical patternObstruction is typically constant with each inspiration and may occur after trauma or rhinonasal surgery.

NOSE score

Full nameNasal Obstruction Symptom Evaluation.

ContentA five-item questionnaire covering congestion or stuffiness, nasal blockage or obstruction, trouble breathing through the nose, trouble sleeping, and inability to get enough air during exercise or exertion.

ScoringRaw scores range from 0 to 20 and are multiplied by 5 to produce a 0-to-100 score; higher scores indicate worse obstruction.

Nasal valve suspension

PurposeA procedure intended to correct collapse of cartilage in the nasal passages.

TechniqueThe cartilage at the site of collapse is suspended with a permanent suture.

Anchor siteThe suture is anchored to the inferior orbital rim.

Radiofrequency ablation of nasal tissue

Treatment approachUses low doses of radiofrequency energy to treat nasal tissue.

Tissue effectThe energy shrinks and coagulates soft tissues.

Intended resultReduction of soft tissues contributing to nasal obstruction.

NOSE

AbbreviationNOSE

MeaningNasal Obstruction Symptom Evaluation.

UseA patient-reported measure used to assess nasal obstruction symptoms.

RCT

AbbreviationRCT

MeaningRandomized controlled trial.

Policy contextThe policy reports randomized trial results for nasal implant treatment, including NOSE responder outcomes.

AbbreviationSD

MeaningStandard deviation.

Reporting contextUsed in the policy tables to report variability around changes in NOSE and visual analog scale scores.

VAS

AbbreviationVAS

MeaningVisual analog scale.

Reporting contextUsed as a patient-reported outcome measure in the randomized trial results.

NOSE responder

DefinitionA patient who meets the policy’s improvement definition on the NOSE measure.

Primary thresholdA 20% decrease in the NOSE score.

Alternative thresholdA decrease of one category on the NOSE score.

Nasal valve compromise

DefinitionNasal valve compromise is a distinct clinical entity separate from other anatomic reasons for nasal obstruction.

Characteristic symptomThe main symptom is decreased airflow as reported by the patient.

Supporting findingsInspiratory collapse of the lateral nasal wall or alar rim, and increased obstruction with deep inspiration, are consistent with nasal valve compromise.

Nasal septal swell body

Anatomic structureThe nasal septal swell body is located in the anterior nasal septum and contains bone, cartilage, and swell tissues with a mucosal lining.

Potential effectIt may contribute to nasal obstruction when it swells or becomes enlarged.

Physiological uncertaintyIts unique physiological roles are not yet fully understood, and long-term results of surgical reduction remain unclear.