Pediatric Complex Chronic Conditions

An implementation of the pediatric complex chronic conditions (CCC) classification system using R and C++.


Version 1.0.2

Removed unnecessary initializer that causes problems with older pre-C++11 compilers

Version 1.0.1

Minor update to address problem introduced by downstream dependency package rlang 0.2.0. Unit tests identified that a null argument that previously worked with enquo() now throws an error. Now check for argument and set sane default if missing.

Version 1.0.0

After careful review of which ICD codes should flag which CCCs, we have made tweaks to the overall logic as well as the various CCC categories.


API Change

  • With the move to dplyr (>= 0.7.0) (#20) the API is cleaner and easier to use. See the vignette and examples. The major change is that dplyr::vars is no longer needed.

Version 0.2.0

API Change

  • The ccc function only takes one entry for codes. There is no need to input the diagnostic and procedure codes seperately.

Non-User Visible Changes

  • Redesign of the C++ code. Improved speed, fewer arguments, fewer operations.

Version 0.1.1

Bug Fixes

  • ccc (#4)

Version 0.1.0

First release.

Reference manual

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1.0.5 by Seth Russell, a year ago

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Browse source code at

Authors: Peter DeWitt [aut] , Tell Bennett [aut] , James Feinstein [aut] , Seth Russell [aut, cre]

Documentation:   PDF Manual  

GPL-2 license

Imports dplyr, Rcpp

Suggests covr, knitr, rmarkdown, testthat, readr

Linking to Rcpp

See at CRAN