| Code |
System |
Display |
| RCT |
http://terminology.hl7.org/CodeSystem/study-type |
randomized trial |
| CCT |
http://terminology.hl7.org/CodeSystem/study-type |
controlled trial (non-randomized) |
| cohort |
http://terminology.hl7.org/CodeSystem/study-type |
comparative cohort study |
| case-control |
http://terminology.hl7.org/CodeSystem/study-type |
case-control study |
| series |
http://terminology.hl7.org/CodeSystem/study-type |
uncontrolled case series |
| case-report |
http://terminology.hl7.org/CodeSystem/study-type |
case report |
| RCTandCohort |
http://terminology.hl7.org/CodeSystem/study-type |
mixed RCT and cohort |
| cross-section |
http://terminology.hl7.org/CodeSystem/study-type |
cross sectional study |