Table 2.

Results of legacy concept mapping to SNOMED CT with examples

Number of concepts (2002 = total)	Mapped relationship(s)	Source concept(legacy)	Target concept (SNOMED CT)
1510 (75%)	302 mapped to equal single target concept	OSTEOPOROSIS	Osteoporosis (disorder)
	1208 mapped to equal post-coordinated targets	POST-ICTAL PSYCHOSIS	Psychotic disorder (disorder) Associated with (attribute) Post-ictal state (finding)
396 (20%)	34 mapped to related single target concept	BEHAVIORAL DISTURBANCE	Problem behavior (finding)
	362 mapped to related post-coordinated targets	PELVIS MUSCULAR TONE FLACCID PALPATED	Finding by palpation (finding) Associated with (attribute) Poor pelvic muscle tone (finding)
70 (4%)	Mapped to parent target concept only (IS A)	SMILES TO IMAGE OF PARENTS FACE	Child developmental finding (finding)
26 (1%)	No map	HEART SOUND CLICK AUSCULTATED