Table 5:

Examples for reasons that concepts identified by the age rule QA but ended up not requiring an age rule in the Map (false positives)

False positive category	Concept flagged for age rule	Default target code	Index subentry triggering age rule QA	Age specific target	Result
Conflict with SNOMED CT modifier	Senile dementia	F03 : Unspecified dementia (inclusion: Senile dementia NOS)	Dementia F03 - infantile, infantilis F84.3	F84.3 : Other childhood disintegrative disorder (Inclusion: Dementia infantilis)	Age rules were not created
Multiple positions in alpha index	Cyclical vomiting – psychogenic	F50.8 : Other eating disorders (index entry: Cyclical vomiting - psychogenic F50.8)	Disorder (of) - eating - - pica F50.8 - - - childhood F98.3	F98.3 : Pica of infancy and childhood
Questionable index entry	Heart disease	I51.9 : Heart disease, unspecified	Disease, diseased - heart (organic) I51.9 - - senile — see Myocarditis	I51.4 : Myocarditis, unspecified
Identical target as default	Paralysis	G83.9: Paralytic syndrome, unspecified	Paralysis, paralytic G83.9 - senile G83.9	G83.9: Paralytic syndrome, unspecified (same as default code)