O que funcionou para mim é usar a exclusão
define service {
service_description Oracle Filesystems
use Oracle_PROD_Service
hostgroup_name oracle,!devua
check_interval 3
check_command check_nrpe!check_fs!pkgname:oracle:95:99!!!!!!!
register 1
}
define service {
service_description Oracle Filesystems
use Oracle_DEV_Service
hostgroup_name oracle,!prod
check_interval 3
check_command check_nrpe!check_fs!pkgname:oracle:95:101!!!!!!!
register 1
}