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icd9 (version 0.2.1)

icd9SubsequentMinors: determine preceding or subsequent post-decimal parts of ICD9 codes

Description

this is not simply numeric, since "4" is after "39" and "0" != "00". Frustrating to have to do so much string manipulation, but, as I have learned, it is not possible to treat ICD-9 codes as numbers without risking ambiguity and subtle mistakes.

Usage

icd9SubsequentMinors(minor)
icd9PrecedingMinors(minor, invalidAction = c("ignore", "silent", "warn",
  "stop"))

Arguments

minor
character vector of 'minor' part of ICD-9 codes, i.e. that part which falls after the decimal point, in decimal notation. (In 5 digit notation, the 'major' part is be xyz, even when x and y are zero, thus the last two characters represent the 'minor' part

See Also

Other ICD-9 ranges: %i9d%, icd9ExpandRangeDecimal; %i9mj%; %i9s%, icd9ExpandRangeShort; icd9ChildrenDecimal; icd9Children, icd9ChildrenShort; icd9CondenseShort; icd9CondenseToExplainShort; icd9ExpandMinor, icd9ExpandMinorE, icd9ExpandMinorNV