GEM: General Equivalence Mappings from ICD-9-CM to ICD-10-CM and...

In CALIBERcodelists: Generate ICD10, Read and OPCS codelists

Description

These two data.tables contain the mapping between the 9th and 10th versions of the Clinical Modification of the International Classification of Diseases.

Details

A data.table with observations on the following 11 variables.

icd9cm

ICD-9 CM code

icd10cm

ICD-10 CM code

approximate

logical, whether the map is approximate instead of exact

no_map

logical, whether there is no map for a particular code

combination

logical, whether a combination of two or more mapped terms is required to convey the meaning of the source term

scenario

integer, alternative map (0 if no alternatives)

choice_list

integer, component of a multi-term map (0 if single-term map)

icd9

3 or 4 character ICD-9 code

icd10

3 or 4 character ICD-9 code

use

logical, whether to use this mapping in CALIBERcodelists. We use maps if no_map is FALSE and choice_list is 0 or 1.

from9to10

logical, TRUE for ICD-9 CM to ICD-10 CM mapping; FALSE for ICD-10 CM to ICD-9 CM mapping

Note

For CALIBER users, the tables are included in the CALIBERlookups package.

If there is no CALIBER_GEM table in the global environment, CALIBERcodelists functions will create one containing a small sample of terms. This is used for testing the examples.

Source

2013 release of the National Center for Health Statistics (NCHS/CDC) public domain diagnosis code reference mappings of the International Classification of Diseases 10th Revision Clinical Modification (ICD-10-CM) and the International Classification of Diseases 9th Revision (ICD-9-CM) Volumes 1 & 2.

References

http://www.cms.gov/Medicare/Coding/ICD10/2013-ICD-10-CM-and-GEMs.html

See Also

codematch, convert

CALIBERcodelists documentation built on Feb. 28, 2020, 3:01 a.m.