Exclusion and Not Equals0

Expression Constraint	{*}Valid Expression¹
	Precoordinated	Postcoordinated
<< 19829001	disorder of lung	MINUS << 301867009	edema of trunk	372146004	acute chest syndrome	27819004	pulmonary ossification	: {116676008	associated morphology	= 18115005	pathologic calcification	, 363698007	finding site	= 31094006	structure of lobe of lung	}
	413839001	chronic lung disease
<< 19829001	disorder of lung	MINUS ^ 700043003	example problem list concepts reference set	233613009	fungal pneumonia	27819004	pulmonary ossification	: {116676008	associated morphology	= 18115005	pathologic calcification	, 363698007	finding site	= 31094006	structure of lobe of lung	}
< 404684003	clinical finding	: 116676008	associated morphology	= ((<< 56208002	ulcer	AND << 50960005	hemorrhage	) MINUS << 26036001	obstruction	)	15902003	gastric ulcer with hemorrhage	64572001	disease	: {116676008	associated morphology	= 55075001	bleeding ulcer	, 363698007	finding site	= 14374004	structure of lymphatic vessel of esophagus	}
< 404684003	clinical finding	: 116676008	associated morphology	!= << 26036001	obstruction	233613009	fungal pneumonia	64572001	disease	: {116676008	associated morphology	= 26036001	obstruction	, 363698007	finding site	= 422897007	vascular structure of stomach	} {116676008	associated morphology	= 45771005	acute bleeding ulcer	, 363698007	finding site	= 422897007	vascular structure of stomach	}
	46708007	acute gastric ulcer with hemorrhage AND obstruction
< 404684003	clinical finding	: [0..0] 116676008	associated morphology	= << 26036001	obstruction	233613009	fungal pneumonia	64572001	disease	: {116676008	associated morphology	= 55075001	bleeding ulcer	, 363698007	finding site	= 14374004	structure of lymphatic vessel of oesophagus	}
	15902003	gastric ulcer with hemorrhage
< 404684003	clinical finding	: [0..0] 116676008	associated morphology	!= << 26036001	obstruction	244815007	pyloric obstruction	64572001	disease	: {116676008	associated morphology	= 26036001	obstruction	, 363698007	finding site	= 314600001	choledochoenterostomy stoma	}
	84906002	local cyanosis
< 404684003	clinical finding	: [0..0] 116676008	associated morphology	!= << 26036001	obstruction	AND [1..*] 116676008	associated morphology	= << 26036001	obstruction	244815007	pyloric obstruction	64572001	disease	: {116676008	associated morphology	= 26036001	obstruction	, 363698007	finding site	= 314600001	choledochoenterostomy stoma	}

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

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Exclusion and Not Equals0