Deprecated: is a code a particular ICD-9 sub-type?

Description

Not exported anymore. If you really need it, use: icd9_is_n etc.

Usage

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Arguments

icd9

is a character vector or factor of ICD-9 codes. If fewer than five characters is given in a code, then the digits are greedily assigned to hundreds, then tens, then units, before the decimal parts. E.g. "10" becomes "010", not "0010".

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