A reprex would be good as your code via screenshot is somewhat a challenge for us forum fellows to retype in full, and also the attempt may be somewhat in vain as we lack your key input brfssdsgn...
I present a simple example of a dichotomous variable, both values it takes are shown by default. perhaps add your options until they disappear ? unless your starting data is very different and the explanation is from that difference rather than the code per say...
(some_made_up_data <- data.frame(SEX=c(rep("M",4),rep("F",8)),
kidney_disease=c(rep(c("y","n"),5),"y","y")))
(tbl_svysummary_ex1 <-
survey::svydesign(~1, data = some_made_up_data) %>%
tbl_svysummary(by = SEX)) %>% add_p() %>% bold_labels()
