VA Form 21-4192 in TDIU VA Cases? What is the VA Form 21-4192 in TDIU VA Cases? When Veterans request Total Disability due to Individual Unemployability benefits, they must list former employers on Form 21-8940. These listings automatically generate Form 21-4192. The VA sends these documents to the listed employers. The form requests job-related information, … Continue reading VA Form 21-4192 in TDIU