May be entitled to special monthly compensation where the Veteran has a single service-connected disability rated as 100% and/or other requirements/qualifications under 38 CFR 3.350 [Special monthly compensation ratings]. Also reference 38 CFR 3.155(d)(2).   

This disease shall be granted service connection as a result of service in the Southwest Asia theater of operations during the Gulf War as defined in 38 CFR 3.317(e) or Afghanistan on or after September 19, 2001 and the disease becomes manifest to a compensable degree within one ear of the date of separation from a qualified period of service as defined in 38 CFR 3.317 (c)(3)(ii).