Table 1.

Sample fragment of an annotated discharge summary

Original text	Most fine-grained SNOMED CT term	SNOMED CT concept ID
Masculino	Male (finding)	248153007
43 anos	Current chronological age (observable entity)	42414402
Hipertenso	Hypertensive disorder, systemic arterial (disorder)	38341003
Tabagista	Tobacco user (finding)	110483000
Etilista	Current drinker of alcohol (finding)	219006
Interna	Hospital admission (procedure)	32485007
Por infarto agudo do miocárdio	Acute myocardial infarction (disorder)	57054005
Sem supradesnivelamento de segmento ST	ST segment elevation (finding)	76388001

The terms appearing in each summary had been manually coded using the concept identifiers of the most fine-grained terms in SNOMED CT.