Invalid Simple Expression Constraints

Expression Constraint	*INVALID Expression¹
	Precoordinated	Postcoordinated
404684003	clinical finding	56265001	heart disease	404684003	clinical finding	: 363698007	finding site	= 80891009	heart structure
	71388002	procedure
< 404684003	clinical finding	404684003	clinical finding	71388002	procedure	: 405813007	procedure site - direct	= 80891009	heart structure
	71388002	procedure
<< 73211009	diabetes mellitus	71388002	procedure	404684003	clinical finding	: 363698007	finding site	= 113331007	structure of endocrine system
	362969004	disorder of endocrine system
<! 404684003	clinical finding	404684003	clinical finding	404684003	clinical finding	: 116676008	associated morphology	= 79654002	edema	363698007	finding site	= 80891009	heart structure
	233709006	toxic pulmonary edema
> 40541001	acute pulmonary edema	40541001	acute pulmonary edema	40541001	acute pulmonary edema	: 246112005	severity	= 24484000	severe
	233709006	toxic pulmonary edema
	304527002	acute asthma
>> 40541001	acute pulmonary edema	233709006	toxic pulmonary edema	40541001	acute pulmonary edema	: 246112005	severity	= 24484000	severe
	304527002	acute asthma
>! 40541001	acute pulmonary edema	404684003	clinical finding	64572001	disease	: 263502005	clinical course	= 424124008	sudden onset AND/OR short duration
	267038008	edema
^ 700043003	example problem list concepts reference set	6143009	diabetic education	71388002	procedure	: 405813007	procedure site - direct	= 80891009	heart structure
	75367002	blood pressure
*	-	-
	-	-
	-	-

Footnotes
Ref	Notes
1	Where necessary, these examples make some assumptions about the membership of the example reference sets.