Gender code should be a string (#1958)

Author: dczulada

config/cypress.yml

@@ -330,11 +330,11 @@ version_config:
             codeSystem     : 2.16.840.1.113883.6.238
             codeSystemName : CDC Race
         genders:
-          - code           : 248152002
+          - code           : '248152002'
             name           : Female
             codeSystem     : 2.16.840.1.113883.6.96
             codeSystemName : SNOMEDCT
-          - code           : 248153007
+          - code           : '248153007'
             name           : Male
             codeSystem     : 2.16.840.1.113883.6.96
             codeSystemName : SNOMEDCT