Why Your Doctor Won't Write a Nexus Letter (And What to Do About It)

Most veterans assume their primary care doctor can write a nexus letter. Technically, they can. In practice, most won't.

It's not because they don't care. It's because nexus letters sit outside normal clinical work. Your PCP gets paid to diagnose and treat you, not to write legal-medical opinions for VA claims. They may not know what language the VA requires, what "at least as likely as not" means in this context, or how to structure an opinion that holds up to a C&P examiner's scrutiny. And for all that extra work, they don't get reimbursed a dime.

Some doctors also worry about liability. Putting their medical license behind a written opinion that might get challenged feels different from writing a referral or filling out a form. Others simply don't have time. A good nexus letter requires reviewing your full record, connecting clinical findings to your service history, and citing relevant medical literature. That's hours of work on top of a full patient schedule.

So what do you do?

First, you can ask. Bring your records organized, explain what you need, and make it easy for them. Some PCPs will do it if the connection is straightforward and the records are clear.

If that doesn't work, ask your VA provider. They can write nexus opinions despite what many veterans are told. There's no VA policy prohibiting it. Most just choose not to get involved in the claims process.

If neither option works, an independent nexus letter service is a legitimate path. The key is finding one where an actual physician reviews your specific records and writes an individualized opinion, not a template with your name plugged in. Ask who signs the letter, what their credentials are, and whether they actually reviewed your medical records or just a questionnaire.

A nexus letter is often the difference between approved and denied. It's worth getting right.