Here is some guidance from the SAMHSA SOAR TA Center and the Social Security Administration for gathering information about and documenting Long COVID for SSI/SSDI applications.
This article explains how you can promote SOAR with your Social Security Administration (SSA) Office of Hearings Operations (OHO) office to help ease their backlog and workload issues, while at the same time, improving access to expedited decisions for SOAR applicants.
If Social Security denied your application for disability benefits, you may request an appeal. Social Security has four appeal levels. This article discusses the Reconsideration and Hearing by Administrative Law Judge levels.