This code system http://terminology.hl7.org/CodeSystem/state-change-reason defines the following codes:
\n \n \n \n \n \n Code\n \n | \n \n \n \n Display\n \n | \n \n \n \n Definition\n \n | \n \n
\n \n \n \n adverseEvent\n \n \n \n | \n \n adverse event | \n \n adverse event. | \n \n
\n \n \n \n death\n \n \n \n | \n \n death (adverse event) | \n \n death (adverse event). | \n \n
\n \n \n \n notEligible\n \n \n \n | \n \n did not meet eligibility criteria | \n \n did not meet eligibility criteria. | \n \n
\n \n \n \n eligibleButNo\n \n \n \n | \n \n eligible but unwilling or unable to participate | \n \n eligible but unwilling or unable to participate. | \n \n
\n \n \n \n enrolled\n \n \n \n | \n \n enrolled or registered | \n \n enrolled or registered. | \n \n
\n \n \n \n exclusion\n \n \n \n | \n \n exclusion | \n \n exclusion. | \n \n
\n \n \n \n followUpComplete\n \n \n \n | \n \n follow-up complete | \n \n follow-up complete. | \n \n
\n \n \n \n inclusion\n \n \n \n | \n \n inclusion | \n \n inclusion. | \n \n
\n \n \n \n informedConsentSigned\n \n \n \n | \n \n Informed consent signed | \n \n Informed consent signed. | \n \n
\n \n \n \n intOrObsComplete\n \n \n \n | \n \n intervention or observation complete | \n \n intervention or observation complete. | \n \n
\n \n \n \n nonCompliance\n \n \n \n | \n \n non-compliance | \n \n non-compliance. | \n \n
\n \n \n \n preReg\n \n \n \n | \n \n pre-registered or slot reserved | \n \n pre-registered or slot reserved. | \n \n
\n \n \n \n refuseConsent\n \n \n \n | \n \n refuse consent | \n \n refuse consent. | \n \n
\n \n \n \n screenFailure\n \n \n \n | \n \n screen failure | \n \n screen failure. | \n \n
\n \n \n \n studyClosed\n \n \n \n | \n \n study permanently closed to accrual | \n \n study permanently closed to accrual. | \n \n
\n \n \n \n studyTerminated\n \n \n \n | \n \n study terminated | \n \n study terminated. | \n \n
\n \n \n \n subjectRefusal\n \n \n \n | \n \n subject refusal | \n \n subject refusal. | \n \n
\n \n \n \n unwillingOrUnable\n \n \n \n | \n \n unwilling or unable to participate | \n \n unwilling or unable to participate. | \n \n
\n \n \n \n withdrawnConsent\n \n \n \n | \n \n withdrawn consent | \n \n withdrawn consent. | \n \n
\n \n