RespiratoryDC 6520
Stenosis of the Larynx
Stenosis (narrowing) of the larynx is rated under DC 6520 based on FEV-1 results combined with a flow-volume loop showing upper airway obstruction. If the condition results in chronic inability to speak, it may alternatively be rated under the aphonia (loss of speech) code if that provides a higher rating. A permanent tracheostomy qualifies for a 100% rating.
VA Rating Levels
10%
FEV-1 of 71-80% with a flow-volume loop showing upper airway obstruction.
30%
FEV-1 of 56-70% with a flow-volume loop showing upper airway obstruction.
60%
FEV-1 of 40-55% with a flow-volume loop showing upper airway obstruction.
100%
FEV-1 less than 40% with a flow-volume loop showing upper airway obstruction, or requires a permanent tracheostomy.
Exam Tips & Key Evidence
- →Both FEV-1 results and a flow-volume loop test are needed for this rating. The flow-volume loop must specifically show an upper airway obstruction.
- →If your narrowed larynx also prevents you from speaking, you may get a higher rating under the loss of speech (aphonia) code. Discuss both options with your representative.
- →A permanent tracheostomy qualifies for an automatic 100% rating under this code.
- →This condition can result from intubation injuries, combat trauma, or surgeries. Establish the service connection to the original cause of the narrowing.
Commonly Related Conditions
38 CFR Reference
38 CFR 4.97, DC 6520