Source:http://linkedlifedata.com/resource/umls/id/C0016462
MSH: The presence in food of harmful, unpalatable, or otherwise objectionable foreign substances, e.g. chemicals, microorganisms or diluents, before, during, or after processing or storage.,CSP: presence in food of harmful, unpalatable, or otherwise objectionable foreign substances such as chemicals, microorganisms or diluents, before, during, or after processing or storage.