Catalog Lookup directive
The CATALOG-LOOKUP directive provides lookups into catalogs that are pre-loaded (static). Currently, the directive supports looking up health care ICD-9 and ICD-10-{2016,2017} codes.
Syntax
catalog-lookup 'catalog' :column
The 'catalog'
 argument specifies the dictionary to use for looking up the value in the :column
.
These catalogs are currently supported:
ICD-9
ICD-10-2016
ICD-10-2017
Usage Notes
Using this record as an example: A record containing a single field (code
) that requires looking up:
{
"code": "Y36521S"
}
Applying the CATALOG-LOOKUP directive with the ICD-10-2016 Catalog:
catalog-lookup 'ICD-10-2016' :code
results in the record having an additional column code_catalog_description
 containing the result of the lookup. In cases where there is no matching code, a null
 is stored instead. For this example, in code_icd_10_2016_description
:
In cases where the lookup is null or empty for a record, a null
 value is added to the :column
 field.
Created in 2020 by Google Inc.