This code system http://hl7.org/fhir/contract-term-type defines the following codes:

Code Display Definition
statutory Statutory Based on specialized statutes that deal with particular subjects.
subject-to Subject To Execution of the term in the contract is conditional on the execution of other actions.
<status value="draft"/> <experimental value="false"/> <description value="This value set includes sample Contract Term Type codes."/> <copyright value="This is an example set."/> <caseSensitive value="true"/> <content value="complete"/> <concept> <code value="statutory"/> <display value="Statutory"/> <definition value="Based on specialized statutes that deal with particular subjects."/> </concept> <concept> <code value="subject-to"/> <display value="Subject To"/> <definition value="Execution of the term in the contract is conditional on the execution of other actions."/> </concept> </CodeSystem>