The CTI segment is an optional segment that contains information to identify the clinical trial, phase and time point with which an order or result is associated.
HL7 Attribute Table - CTI - Clinical Trial Identification
| Base Framework | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Seq# | Data Element | Description | Flags | Implement | Cardinality | Length | C.LEN | Vocabulary | Data Type | |
 CTI | ||||||||||
  | 1 | 01011 | Sponsor Study ID | SHOULD | [1..1] | EI Entity Identifier | ||||
 | 2 | 01022 | Study Phase Identifier | C Condition defined for this element | MAY | [0..1] | CWE Coded with Exceptions | |||
| 3 | 01055 | Study Scheduled Time Point | MAY | [0..1] | StudyScheduledTimePoint (CD) | CWE Coded with Exceptions | |||
 | 4 | 00816 | Action Code | MAY | [0..1] | [2..2] | univ: SegmentActionCode (CD) hl7VS-segmentActionCode (VS) segmentAction (CS) | ID Coded Value for HL7 Defined Tables | ||
The root for the expression is on the segment.
| Seq. | Referenced Elements | Introduction | Invariant | Comment |
|---|---|---|---|---|
| 1 | ? |
| Seq# | Data Element | Description | Flags | Implement | Cardinality | Length | C.LEN | Vocabulary | Data Type | |
|---|---|---|---|---|---|---|---|---|---|---|
| CTI | ||||||||||
| 1 | 01011 | Sponsor Study ID | SHALL | [1..1] | EI Entity Identifier | ||||
| 2 | 01022 | Study Phase Identifier | C Condition defined for this element | MAY | [0..1] | CWE Coded with Exceptions | |||
| 3 | 01055 | Study Scheduled Time Point | MAY | [0..1] | StudyScheduledTimePoint (CD) | CWE Coded with Exceptions | |||
| 4 | 00816 | Action Code | MAY | [0..1] | [2..2] | univ: SegmentActionCode (CD) hl7VS-segmentActionCode (VS) segmentAction (CS) | ID Coded Value for HL7 Defined Tables | ||
| Base Framework | Base Standard Profile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Seq# | Data Element | Description | Flags | Implement | Cardinality | Length | C.LEN | Vocabulary | Data Type | Implement | Vocabulary | |
| CTI | ||||||||||||
| 1 | 01011 | Sponsor Study ID | SHOULD | [1..1] | EI Entity Identifier | SHALL | |||||
| 2 | 01022 | Study Phase Identifier | C Condition defined for this element | MAY | [0..1] | CWE Coded with Exceptions | MAY | ||||
| 3 | 01055 | Study Scheduled Time Point | MAY | [0..1] | StudyScheduledTimePoint (CD) | CWE Coded with Exceptions | MAY | ||||
| 4 | 00816 | Action Code | MAY | [0..1] | [2..2] | univ: SegmentActionCode (CD) hl7VS-segmentActionCode (VS) segmentAction (CS) | ID Coded Value for HL7 Defined Tables | MAY | |||
| Base Framework | Base Standard Profile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Seq# | Data Element | Description | Flags | Optionality | Repetition | Length | C.LEN | Table | Data Type | Optionality | Table | |
| CTI |
||||||||||||
|
1 | 01011 | Sponsor Study ID | O | EI Entity Identifier |
R | ||||||
|
2 | 01022 | Study Phase Identifier | C Condition defined for this element |
O | CWE Coded with Exceptions |
||||||
|
3 | 01055 | Study Scheduled Time Point | O | CWE Coded with Exceptions |
(0595) | ||||||
|
4 | 00816 | Action Code | O | [2..2] | ID Coded Value for HL7 Defined Tables |
(0206) | |||||
| Seq# | Data Element | Description | Optionality | Repetition | Length | C.LEN | Table | Data Type | |
|---|---|---|---|---|---|---|---|---|---|
| CTI |
|||||||||
|
1 | 01011 | Sponsor Study ID | R | EI Entity Identifier |
||||
|
2 | 01022 | Study Phase Identifier | C | CWE Coded with Exceptions |
||||
|
3 | 01055 | Study Scheduled Time Point | O | (0595) | CWE Coded with Exceptions |
|||
|
4 | 00816 | Action Code | O | [2..2] | (0206) | ID Coded Value for HL7 Defined Tables |
||
Definition: This field contains the universal identifier for the clinical trial. The coding system is as described in CSR-1 Sponsor Study ID.
Definition: This field identifies the phase of the study that a patient has entered. See CSP-1 Study Phase Identifier for details of coding systems. Refer to Table 0597 - Study Phase Identifier in Chapter 2C for valid values.
Definition: This field identifies a time point in the clinical trial phase. CTI-2 Study Phase Identifier must be valued if CTI-3 Study Scheduled Time Point is valued. Should correspond to CSS-1 Study Scheduled Time Point. Refer to Table 0598 - Study Scheduled Time Point in Chapter 2C for valid values.
Definition: This field reveals the intent of the message. Refer to HL7 Table 0206 - Segment Action Code for valid values.
The action code can only be used when CTI-1 is valued in accordance with the guidance in Chapter 2, Section 2.10.4.2.
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