This code system http://terminology.hl7.org/CodeSystem/condition-ver-status defines the following codes:
LvlCodeDisplayDefinition
1 unconfirmed Unconfirmed There is not sufficient diagnostic and/or clinical evidence to treat this as a confirmed condition.
2 provisional Provisional This is a tentative diagnosis - still a candidate that is under consideration.
2 differential Differential One of a set of potential (and typically mutually exclusive) diagnoses asserted to further guide the diagnostic process and preliminary treatment.
1 confirmed Confirmed There is sufficient diagnostic and/or clinical evidence to treat this as a confirmed condition.
1 refuted Refuted This condition has been ruled out by subsequent diagnostic and clinical evidence.
1 entered-in-error Entered in Error The statement was entered in error and is not valid.