Obsolete: 'icd9' is replaced by CRAN package 'icd'. Calculate comorbidities, Charlson scores, perform fast and accurate validation, conversion, manipulation, filtering and comparison of ICD-9-CM (clinical modification) codes. ICD-9 codes appear numeric but leading and trailing zeroes, and both decimal and non-decimal "short" format codes exist. The package enables a work flow from raw lists of ICD-9 codes from hospital billing databases to comorbidities. ICD-9 to comorbidity mappings from Quan (Deyo and Elixhauser versions), Elixhauser and AHRQ included. Any other mapping of codes, such as ICD-10, to comorbidities can be used.
|Author||Jack O. Wasey [aut, cre, cph], William Murphy [ctb], R Core Team [ctb, cph]|
|Maintainer||Jack O. Wasey <email@example.com>|
|Package repository||View on CRAN|
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