| Package | hl7.v2plus |
| Resource Type | StructureDefinition |
| Id | CD |
| FHIR Version | R5 |
| Source | http://somewhere.org/fhir/uv/v2plus/https://build.fhir.org/ig/HL7/v2ig/StructureDefinition-CD.html |
| URL | http://hl7.org/v2/StructureDefinition/CD |
| Version | 0.0.0 |
| Status | active |
| Date | 2025-08-11T19:32:53+00:00 |
| Name | CD |
| Title | HL7 v2 CD Data Type |
| Authority | hl7 |
| Description | *Attention: _Retained for backward compatibility onlyas of v 2.7_.* This is used only in the waveform message, CHM category, which has been retained for backward compatibility only in v 2.7. |
| Type | http://hl7.org/v2/StructureDefinition/CD |
| Kind | logical |
No resources found
| StructureDefinition | |
| CCP | HL7 v2 CCP Data Type |
| CSU | HL7 v2 CSU Data Type |
| NM | HL7 v2 Numeric Primitive Type |
| NR | HL7 v2 NR Data Type |
| WVI | HL7 v2 WVI Data Type |
| WVS | HL7 v2 WVS Data Type |
| complex-data-type | HL7 v2 Complex Data Type |
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition CD
Profile: HL7 v2 Complex Data Type Profile
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  CD | 0..* | V2ComplexDataType | channel definition | |
  1 | 0..1 | WVI | Channel Identifier | |
| 2 | 0..1 | WVS | Waveform Source | |
| 3 | 0..1 | CSU | Channel Sensitivity and Units | |
| 4 | 0..1 | CCP | Channel Calibration Parameters | |
 5 | 0..1 | decimal | Channel Sampling Frequency | |
 6 | 0..1 | NR | Minimum and Maximum Data Values | |
| Documentation for this format | ||||
FHIR{
"resourceType": "StructureDefinition",
"id": "CD",
"meta": {
"profile": [
"http://hl7.org/v2/StructureDefinition/complex-data-type-profile"
]
},
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "informative",
"_valueCode": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueCanonical": "http://somewhere.org/fhir/uv/v2plus/ImplementationGuide/hl7.other.uv.v2plus"
}
]
}
}
],
"url": "http://hl7.org/v2/StructureDefinition/CD",
"version": "0.0.0",
"name": "CD",
"title": "HL7 v2 CD Data Type",
"status": "active",
"date": "2025-08-11T19:32:53+00:00",
"publisher": "HL7 International",
"contact": [
{
"telecom": [
{
"system": "url",
"value": "http://hl7.org/Special/committees/v2mgmt"
}
]
}
],
"description": "*Attention: _Retained for backward compatibility onlyas of v 2.7_.* This is used only in the waveform message, CHM category, which has been retained for backward compatibility only in v 2.7.",
"fhirVersion": "5.0.0",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "logical",
"abstract": false,
"type": "http://hl7.org/v2/StructureDefinition/CD",
"baseDefinition": "http://hl7.org/v2/StructureDefinition/complex-data-type",
"derivation": "specialization",
"snapshot": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "0.0.0"
}
],
"element": [
{
"id": "CD",
"path": "CD",
"short": "channel definition",
"definition": "Definition: This data type is used for labeling of digital waveform data. It defines a recording channel, which is associated with one of the values in each time sample of waveform data. Each channel has a number (which generally defines its position in a multichannel display) and an optional name or label (also used in displays). One or two named waveform sources may also be associated with a channel (providing for the use of differential amplifiers with two inputs). The other components of the channel definition data type are optional. The individual components are defined as follows:",
"min": 0,
"max": "*",
"base": {
"path": "Base",
"min": 0,
"max": "*"
},
"isModifier": false,
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "CD.1",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.1",
"short": "Channel Identifier",
"min": 0,
"max": "1",
"base": {
"path": "CD.1",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/WVI"
}
]
},
{
"id": "CD.2",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.2",
"short": "Waveform Source",
"min": 0,
"max": "1",
"base": {
"path": "CD.2",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/WVS"
}
]
},
{
"id": "CD.3",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.3",
"short": "Channel Sensitivity and Units",
"min": 0,
"max": "1",
"base": {
"path": "CD.3",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/CSU"
}
]
},
{
"id": "CD.4",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.4",
"short": "Channel Calibration Parameters",
"min": 0,
"max": "1",
"base": {
"path": "CD.4",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/CCP"
}
]
},
{
"id": "CD.5",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
},
{
"extension": [
{
"url": "length",
"valueInteger": 6
},
{
"url": "noTruncate",
"valueBoolean": true
}
],
"url": "http://hl7.org/v2/StructureDefinition/conformance-length"
}
],
"path": "CD.5",
"short": "Channel Sampling Frequency",
"min": 0,
"max": "1",
"base": {
"path": "CD.5",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/NM"
}
]
},
{
"id": "CD.6",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.6",
"short": "Minimum and Maximum Data Values",
"min": 0,
"max": "1",
"base": {
"path": "CD.6",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/NR"
}
]
}
]
},
"differential": {
"element": [
{
"id": "CD",
"path": "CD",
"short": "channel definition",
"definition": "Definition: This data type is used for labeling of digital waveform data. It defines a recording channel, which is associated with one of the values in each time sample of waveform data. Each channel has a number (which generally defines its position in a multichannel display) and an optional name or label (also used in displays). One or two named waveform sources may also be associated with a channel (providing for the use of differential amplifiers with two inputs). The other components of the channel definition data type are optional. The individual components are defined as follows:",
"min": 0,
"max": "*"
},
{
"id": "CD.1",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.1",
"short": "Channel Identifier",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/WVI"
}
]
},
{
"id": "CD.2",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.2",
"short": "Waveform Source",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/WVS"
}
]
},
{
"id": "CD.3",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.3",
"short": "Channel Sensitivity and Units",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/CSU"
}
]
},
{
"id": "CD.4",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.4",
"short": "Channel Calibration Parameters",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/CCP"
}
]
},
{
"id": "CD.5",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
},
{
"extension": [
{
"url": "length",
"valueInteger": 6
},
{
"url": "noTruncate",
"valueBoolean": true
}
],
"url": "http://hl7.org/v2/StructureDefinition/conformance-length"
}
],
"path": "CD.5",
"short": "Channel Sampling Frequency",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/NM"
}
]
},
{
"id": "CD.6",
"extension": [
{
"url": "http://hl7.org/v2/StructureDefinition/optionality",
"valueCode": "O"
}
],
"path": "CD.6",
"short": "Minimum and Maximum Data Values",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/v2/StructureDefinition/NR"
}
]
}
]
}
}