Malignant neoplasm of larynx (unspecified)
VA doesn't add ratings together. It combines them using the table in 38 CFR § 4.25, so two ratings usually total less than their sum.
While the cancer is active or treatment is ongoing, medical records confirming the diagnosis and documenting your treatment history are the core evidence. Records from oncologists, surgeons, or radiation providers that show the type of cancer, the affected site, and the course of treatment directly support the 100% rating.
At the six-month mandatory examination following the end of treatment, the focus shifts. Records showing whether there has been any local recurrence or spread of the cancer become critical. Imaging studies, pathology reports, and oncology notes that confirm no recurrence or metastasis are relevant at that stage, because a finding of no recurrence or metastasis moves the rating to a residuals basis.
If your rating is then based on residuals, evidence of those specific remaining conditions — such as breathing difficulties, voice changes, or other lasting effects — will matter. Statements from you or people who know you describing how those residuals affect your daily life and work can also support that evaluation.
VA exam form (DBQ) for this condition:
If your service meets the rules below, VA presumes this condition is connected to it.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.
