Respond as appropriate ... did you file or not ? Did you ever get your refund or pay your balance due ?

https://www.irs.gov/individuals/understanding-your-cp63-notice

I got injured and didn't work. My parents claimed me

I got injured and didn't work. My parents claimed me

Then tell them that  but if they think you should have filed there must have been some income that is triggering the letter ... get an income transcript  to see what they have.    <a rel="nofollow" target="_blank" href="http://www.irs.gov/Individuals/Get-Transcript">http://www.irs.gov/Individuals/Get-Transcript</a>

Never mind