Exclusion and Not Equals - Valid Expressions

Expression Constraint	Precoordinated	Postcoordinated
<< 19829001 | Disorder of lung| MINUS << 301867009 | Edema of trunk|	372146004 | Acute chest syndrome| 413839001 | Chronic lung disease|	27819004 | Pulmonary ossification| : { 116676008 | Associated morphology| = 18115005 | Pathologic calcification| , 363698007 | Finding site| = 31094006 | Structure of lobe of lung| }
<< 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| 46708007 | Acute gastric ulcer with hemorrhage AND obstruction|	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| }
< 404684003 | Clinical finding| : [0..0] 116676008 | Associated morphology| = << 26036001 | Obstruction|	233613009 | Fungal pneumonia| 15902003 | Gastric ulcer with hemorrhage|	64572001 | Disease| : { 116676008 | Associated morphology| = 55075001 | Bleeding ulcer| , 363698007 | Finding site| = 14374004 | Structure of lymphatic vessel of oesophagus| }
< 404684003 | Clinical finding| : [0..0] 116676008 | Associated morphology| != << 26036001 | Obstruction|	244815007 | Pyloric obstruction| 84906002 | Local cyanosis|	64572001 | Disease| : { 116676008 | Associated morphology| = 26036001 | Obstruction| , 363698007 | Finding site| = 314600001 | Choledochoenterostomy stoma| }
< 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| }

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