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Laryngeal Stenosis (Narrowing of the Airway) VA Disability Rating

Diagnostic code 6520
By the editorial deskUpdated Jun 13, 2026Sources verified Jun 13, 2026
Quick summary
Stenosis of the larynx is rated under diagnostic code 6520 from 10 to 100 percent based on FEV-1 with flow volume loop confirmation of upper airway pathology: 10 percent for FEV-1 of 71 to 80 percent predicted, 30 percent for 56 to 70, 60 percent for 40 to 55, and 100 percent for FEV-1 below 40 percent predicted or a permanent tracheostomy.
Key requirements
  • Service connection requires a current diagnosis, an in-service event or exposure, and a medical link (nexus) between the two.
  • VA assigns ratings of 10% to 100% under diagnostic code 6520, using the criteria in the rating table below.
  • The percentage assigned turns on FEV-1 or tracheostomy.
  • Measured at the C&P exam: Pulmonary function test.
This page explains common evidence VA may consider when rating this condition. It is not medical advice and does not diagnose any condition. Talk with a licensed medical professional about diagnosis and treatment, and with a VA accredited representative (38 CFR 14.629) about a specific claim.
Ratings
10% to 100%
Diagnostic code
6520
Decided on
FEV-1 or tracheostomy
Measured by
Pulmonary function test
The five parts of a compensation decisionA current disabilityAn in service eventA connectionSeverity under the criteriaAn effective dateHow the pieces fit together
RatingCriteria
10%FEV-1 of 71 to 80 percent predicted, with Flow Volume Loop supportive of upper airway pathology.
30%FEV-1 of 56 to 70 percent predicted, with Flow Volume Loop supportive of upper airway pathology.
60%FEV-1 of 40 to 55 percent predicted, with Flow Volume Loop supportive of upper airway pathology.
100%FEV-1 less than 40 percent of predicted value, with Flow Volume Loop supportive of upper airway pathology, or; permanent tracheostomy.
Rule: 38 CFR 4.97, DC 6520Source: eCFR, Title 38 Part 4Verified: 2026-06-13Change history: no criteria change recorded since publicationEach percentage links to itself; cite with the anchor.

Illustrative scenarios showing how the criteria above are applied. These are educational examples, not a prediction of any individual veteran's rating.

Mild airway narrowing on testing

Illustrates 10%

Situation. FEV-1 is 71 to 80 percent of predicted with a flow-volume loop supporting upper-airway narrowing.

How the criteria apply. FEV-1 of 71 to 80 percent predicted with a supportive flow-volume loop rates 10 percent under DC 6520.

Moderate airway narrowing

Illustrates 30%

Situation. FEV-1 is 56 to 70 percent of predicted with a supportive flow-volume loop.

How the criteria apply. FEV-1 of 56 to 70 percent predicted with a supportive flow-volume loop rates 30 percent under DC 6520.

How this is usually measured. Most lung conditions are rated from a pulmonary function test, also called a PFT or spirometry. The test records values such as FEV-1, FVC, the FEV-1 to FVC ratio, and DLCO. Under 38 CFR 4.96, the rating is generally read from the post bronchodilator results unless the report explains why those cannot be used. If a decision relied on a general description of your breathing rather than the actual test numbers, that is worth a closer look. Read 38 CFR 4.96

This code uses breathing test numbers like the lung codes, but the flow volume loop is the tell: it shows the blockage is at the voice box, not in the lungs.

What VA looks at

FEV-1 with flow volume loop, laryngoscopy findings, the cause (intubation injury, inhalation injury, trauma), and any tracheostomy.

Common exam and DBQ topics

Noisy breathing and exercise limits, voice changes, dilation procedures, tracheostomy.

Evidence that usually matters

PFT with flow volume loop, ENT laryngoscopy reports, operative and intubation records.

Common misunderstandings

Voice impairment from the same injury can be rated separately under the laryngitis or aphonia codes when it is a distinct disability, subject to the rule against paying twice for one symptom.

If a VA decision on this came back wrong

You have three review lanes, pick the one that fits the situation.

Under the Appeals Modernization Act (38 CFR 3.2500), a Higher Level Review or a Board Appeal must be requested within one year of the decision notice. A Supplemental Claim can generally be filed at any time after the decision, but filing any of the three within that one year window is what keeps the claim continuously pursued and protects the original effective date; wait longer and a later award may start from the new filing date instead.

Related conditions

Background reading

Supplemental articles that connect to this condition.

State benefits stack with VA disability

Your rating may also qualify you for state-level benefits.

VA compensation is federal, but every state layers its own benefits on top. Many states reduce or waive property tax for disabled veterans, and many offer license, tuition, or vehicle benefits at various rating levels. The thresholds, dollar amounts, and eligibility rules vary widely from state to state, so the reliable answer is always your own state's guide.

See your state's benefitsReviewed quarterly

Put this rating to work

Free calculators and a guide to turn a rating percentage into real numbers. Your figures stay on your device unless you ask us to email an estimate.

Secondary conditions and case specific outcomes are fact specific. We do not tell you what claims to file. Consider talking with a VA accredited representative.
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Editor's note

Most recent human review on this page, July 5, 2026. Below is the review history across this page, its citations, and the supplemental articles it links to.

  1. July 5, 2026articleAppealing or Continuing a VA Decision: The Three Lanes Under the AMA
  2. July 5, 2026articleThe C&P Exam: What to Expect and How to Prepare
  3. June 13, 2026conditionThis page
  4. June 13, 2026citation38 CFR Part 4 Schedule for Rating Disabilities
Printed from The Veteran Benefit Desk, https://veteranbenefitdesk.com/conditions/laryngeal-stenosis. Figures reflect this page as published. Rates change each December; confirm current amounts at veteranbenefitdesk.com before relying on them.
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