% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/data.R
\docType{data}
\name{rj_tree}
\alias{rj_tree}
\title{Rio de Janeiro Infant Mortality - ICD-10 Tree}
\format{
A data.frame with 622 rows and 2 columns:
\describe{
  \item{node_id}{Character identifier of each ICD-10 node.}
  \item{parent_id}{Character identifier of the parent node. \code{NA}
    for the root.}
}
}
\source{
Constructed from the leaf-level codes in \code{\link{rj_mortality}}, which
in turn come from the Brazilian Mortality Information System (SIM)
maintained by DATASUS. See \code{data-raw/} in the GitHub repository for
the build script.
}
\usage{
rj_tree
}
\description{
ICD-10 hierarchy used by the \code{\link{rj_mortality}} dataset.
Three levels: Chapter -> 3-character category -> 4-character subcategory.
}
\details{
The tree has 410 leaves (4-character ICD-10 codes) and 622 total nodes.
}
\examples{
data(rj_tree)
head(rj_tree)
}
\seealso{
\code{\link{rj_mortality}}
}
\keyword{datasets}
