# Exclusion and Not Equals - Invalid

<table data-full-width="true"><thead><tr><th>Invalid Expression Constraint</th><th>Precoordinated</th><th>Postcoordinated</th></tr></thead><tbody><tr><td>&#x3C;&#x3C; 19829001 | Disorder of lung| MINUS &#x3C;&#x3C; 301867009 | Edema of trunk|</td><td>27719009 | Acute gastrointestinal hemorrhage| 19242006 | Pulmonary edema|</td><td>19829001 | Disorder of lung| : { 116676008 | Associated morphology| = 40829002 | Acute edema| , 363698007 | Finding site| = 22943007 | Trunk structure| }</td></tr><tr><td>&#x3C;&#x3C; 19829001 | Disorder of lung| MINUS ^ 700043003 | Example problem list concepts reference set|</td><td>67599009 | Pulmonary congestion|</td><td>67599009 | Pulmonary congestion| : 363698007 | Finding site| = 3341006 | Right lung structure|</td></tr><tr><td>&#x3C; 404684003 | Clinical finding| : 116676008 | Associated morphology| = ((&#x3C;&#x3C; 56208002 | Ulcer| AND &#x3C;&#x3C; 50960005 | Hemorrhage| ) MINUS &#x3C;&#x3C; 26036001 | Obstruction| )</td><td>397825006 | Gastric ulcer| 235670001 | Gastric stomal obstruction|</td><td>64572001 | Disease| : 116676008 | Associated morphology| = 26036001 | Obstruction|</td></tr><tr><td>&#x3C; 404684003 | Clinical finding| : 116676008 | Associated morphology| != &#x3C;&#x3C; 26036001 | Obstruction|</td><td>81060008 | Intestinal obstruction| 56265001 | Heart disease|</td><td>64572001 | Disease| : 116676008 | Associated morphology| = 26036001 | Obstruction| , 363698007 | Finding site| = 422897007 | Vascular structure of stomach|</td></tr><tr><td>&#x3C; 404684003 | Clinical finding| : [0..0] 116676008 | Associated morphology| = &#x3C;&#x3C; 26036001 | Obstruction|</td><td>81060008 | Intestinal obstruction| 234059001 | Venous stenosis|</td><td>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| }</td></tr><tr><td>&#x3C; 404684003 | Clinical finding| : [0..0] 116676008 | Associated morphology| != &#x3C;&#x3C; 26036001 | Obstruction|</td><td>196652006 | Acute duodenal ulcer| 8377001 | Hernia, with obstruction|</td><td>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| }</td></tr><tr><td>&#x3C; 404684003 | Clinical finding| : [0..0] 116676008 | Associated morphology| != &#x3C;&#x3C; 26036001 | Obstruction| AND [1..*] 116676008 | Associated morphology| = &#x3C;&#x3C; 26036001 | Obstruction|</td><td>196652006 | Acute duodenal ulcer| 8377001 | Hernia, with obstruction| 56265001 | Heart disease|</td><td>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| }</td></tr></tbody></table>

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