Are you looking for something like this? The Hmisc package must be installed for this to work. The default geom for stat_summary is pointrange.
library(ggplot2)
DF <- data.frame(Grp <- rep(LETTERS[1:4], each = 20), Value = rnorm(80))
ggplot(DF, aes(x = Grp, y = Value)) + stat_summary(fun.data = median_hilow)

Created on 2020-06-04 by the reprex package (v0.3.0)