FHIR IG analytics| Package | hl7.fhir.uv.xver-r5.r3 |
| Resource Type | StructureDefinition |
| Id | StructureDefinition-ext-R5-VisionPrescription.len.prism.json |
| FHIR Version | R3 |
| Source | http://hl7.org/fhir/uv/xver-r5.r3/0.1.0/StructureDefinition-ext-R5-VisionPrescription.len.prism.html |
| URL | http://hl7.org/fhir/5.0/StructureDefinition/extension-VisionPrescription.lensSpecification.prism |
| Version | 0.1.0 |
| Status | active |
| Date | 2026-03-17T21:02:03.8104715+00:00 |
| Name | ExtensionVisionPrescription_LensSpecification_Prism |
| Title | R5: Eye alignment compensation (new) |
| Realm | uv |
| Authority | hl7 |
| Description | R5: `VisionPrescription.lensSpecification.prism` (new:BackboneElement) |
| Purpose | This extension is part of the cross-version definitions generated to enable use of the element `VisionPrescription.lensSpecification.prism` as defined in FHIR R5 in FHIR STU3. The source element is defined as: `VisionPrescription.lensSpecification.prism` 0..* `BackboneElement` Across FHIR versions, the element set has been mapped as: * R5: `VisionPrescription.lensSpecification.prism` 0..* `BackboneElement` * R4B: `VisionPrescription.lensSpecification.prism` 0..* `BackboneElement` * R4: `VisionPrescription.lensSpecification.prism` 0..* `BackboneElement` Following are the generation technical comments: Element `VisionPrescription.lensSpecification.prism` has a context of VisionPrescription.dispense based on following the parent source element upwards and mapping to `VisionPrescription`. Element `VisionPrescription.lensSpecification.prism` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element). |
| Type | Extension |
| Kind | complex-type |
| ConceptMap | ||
| hl7.fhir.uv.xver-r5.r3#0.1.0 | R5-VisionPrescription-element-map-to-R3 | Cross-version mapping for FHIR R5 VisionPrescription to FHIR STU3 VisionPrescription |
No resources found
No extension usage examples found
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition ext-R5-VisionPrescription.len.prism
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Extension | 0..* | Extension | R5: Eye alignment compensation (new) | |
  Slices for extension | 2..* | Extension | Extension Slice: Unordered, Open by value:url | |
   extension:amount | 1..1 | Extension | R5: Amount of adjustment | |
  url | 1..1 | uri | "amount" | |
  value[x] | 1..1 | decimal | Amount of adjustment | |
 extension:base | 1..1 | Extension | R5: base | |
 url | 1..1 | uri | "base" | |
| value[x] | 1..1 | code | up | down | in | out Binding: VisionBase (required): A coded concept listing the base codes. | |
| url | 1..1 | uri | "http://hl7.org/fhir/5.0/StructureDefinition/extension-VisionPrescription.lensSpecification.prism" | |
 value[x] | 0..0 | Value of extension | ||
| Documentation for this format | ||||
FHIR
FHIRsmith{
"resourceType": "StructureDefinition",
"id": "ext-R5-VisionPrescription.len.prism",
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
},
{
"extension": [
{
"url": "packageId",
"valueId": "hl7.fhir.uv.xver-r5.r3"
},
{
"url": "version",
"valueString": "0.1.0"
},
{
"url": "uri",
"valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r5.r3"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/package-source"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 0,
"_valueInteger": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r5.r3"
}
]
}
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "trial-use",
"_valueCode": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r5.r3"
}
]
}
}
],
"url": "http://hl7.org/fhir/5.0/StructureDefinition/extension-VisionPrescription.lensSpecification.prism",
"version": "0.1.0",
"name": "ExtensionVisionPrescription_LensSpecification_Prism",
"title": "R5: Eye alignment compensation (new)",
"status": "active",
"experimental": false,
"date": "2026-03-17T21:02:03.8104715+00:00",
"publisher": "FHIR Infrastructure",
"contact": [
{
"name": "FHIR Infrastructure",
"telecom": [
{
"system": "url",
"value": "http://www.hl7.org/Special/committees/fiwg"
}
]
}
],
"description": "R5: `VisionPrescription.lensSpecification.prism` (new:BackboneElement)",
"jurisdiction": [
{
"coding": [
{
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
"code": "001",
"display": "World"
}
]
}
],
"purpose": "This extension is part of the cross-version definitions generated to enable use of the\r\nelement `VisionPrescription.lensSpecification.prism` as defined in FHIR R5\r\nin FHIR STU3.\r\n\r\nThe source element is defined as:\r\n`VisionPrescription.lensSpecification.prism` 0..* `BackboneElement`\r\n\r\nAcross FHIR versions, the element set has been mapped as:\r\n* R5: `VisionPrescription.lensSpecification.prism` 0..* `BackboneElement`\n* R4B: `VisionPrescription.lensSpecification.prism` 0..* `BackboneElement`\n* R4: `VisionPrescription.lensSpecification.prism` 0..* `BackboneElement`\r\n\r\nFollowing are the generation technical comments:\r\nElement `VisionPrescription.lensSpecification.prism` has a context of VisionPrescription.dispense based on following the parent source element upwards and mapping to `VisionPrescription`.\nElement `VisionPrescription.lensSpecification.prism` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"fhirVersion": "3.0.2",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"contextType": "resource",
"context": [
"VisionPrescription.dispense"
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation": "constraint",
"snapshot": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R5: Eye alignment compensation (new)",
"definition": "R5: `VisionPrescription.lensSpecification.prism` (new:BackboneElement)",
"comment": "Element `VisionPrescription.lensSpecification.prism` has a context of VisionPrescription.dispense based on following the parent source element upwards and mapping to `VisionPrescription`.\nElement `VisionPrescription.lensSpecification.prism` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "*",
"base": {
"path": "Extension",
"min": 0,
"max": "*"
},
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
},
{
"key": "ext-1",
"severity": "error",
"human": "Must have either extensions or value[x], not both",
"expression": "extension.exists() != value.exists()",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
"source": "http://hl7.org/fhir/StructureDefinition/Extension"
}
],
"isModifier": false
},
{
"id": "Extension.id",
"path": "Extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
"min": 0,
"max": "1",
"base": {
"path": "Element.id",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"description": "Extensions are always sliced by (at least) url",
"ordered": false,
"rules": "open"
},
"short": "Extension",
"definition": "An Extension",
"min": 2,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:amount",
"path": "Extension.extension",
"sliceName": "amount",
"short": "R5: Amount of adjustment",
"definition": "R5: `VisionPrescription.lensSpecification.prism.amount`",
"comment": "Element `VisionPrescription.lensSpecification.prism.amount` is part of an existing definition because parent element `VisionPrescription.lensSpecification.prism` requires a cross-version extension.\nElement `VisionPrescription.lensSpecification.prism.amount` is mapped to FHIR STU3 element `VisionPrescription.dispense.prism` as `Equivalent`.",
"requirements": "Standard lens prescription measures. Element `VisionPrescription.lensSpecification.prism.amount` is part of an existing definition because parent element `VisionPrescription.lensSpecification.prism` requires a cross-version extension.\nElement `VisionPrescription.lensSpecification.prism.amount` is mapped to FHIR STU3 element `VisionPrescription.dispense.prism` as `Equivalent`.",
"min": 1,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:amount.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
"min": 0,
"max": "1",
"base": {
"path": "Element.id",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:amount.extension",
"path": "Extension.extension.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"description": "Extensions are always sliced by (at least) url",
"rules": "open"
},
"short": "Additional Content defined by implementations",
"definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
"comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
"alias": [
"extensions",
"user content"
],
"min": 0,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:amount.url",
"path": "Extension.extension.url",
"representation": [
"xmlAttr"
],
"short": "identifies the meaning of the extension",
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"type": [
{
"code": "uri"
}
],
"fixedUri": "amount",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:amount.value[x]",
"path": "Extension.extension.value[x]",
"short": "Amount of adjustment",
"definition": "Amount of prism to compensate for eye alignment in fractional units.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "decimal"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:base",
"path": "Extension.extension",
"sliceName": "base",
"short": "R5: base",
"definition": "R5: `VisionPrescription.lensSpecification.prism.base`",
"comment": "Element `VisionPrescription.lensSpecification.prism.base` is part of an existing definition because parent element `VisionPrescription.lensSpecification.prism` requires a cross-version extension.\nElement `VisionPrescription.lensSpecification.prism.base` is mapped to FHIR STU3 element `VisionPrescription.dispense.base` as `Equivalent`.",
"requirements": "Standard lens prescription measures. Element `VisionPrescription.lensSpecification.prism.base` is part of an existing definition because parent element `VisionPrescription.lensSpecification.prism` requires a cross-version extension.\nElement `VisionPrescription.lensSpecification.prism.base` is mapped to FHIR STU3 element `VisionPrescription.dispense.base` as `Equivalent`.",
"min": 1,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:base.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
"min": 0,
"max": "1",
"base": {
"path": "Element.id",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:base.extension",
"path": "Extension.extension.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"description": "Extensions are always sliced by (at least) url",
"rules": "open"
},
"short": "Additional Content defined by implementations",
"definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
"comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
"alias": [
"extensions",
"user content"
],
"min": 0,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:base.url",
"path": "Extension.extension.url",
"representation": [
"xmlAttr"
],
"short": "identifies the meaning of the extension",
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"type": [
{
"code": "uri"
}
],
"fixedUri": "base",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:base.value[x]",
"path": "Extension.extension.value[x]",
"short": "up | down | in | out",
"definition": "The relative base, or reference lens edge, for the prism.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code"
}
],
"binding": {
"strength": "required",
"description": "A coded concept listing the base codes.",
"valueSetUri": "http://hl7.org/fhir/ValueSet/vision-base-codes|3.0.2"
},
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.url",
"path": "Extension.url",
"representation": [
"xmlAttr"
],
"short": "identifies the meaning of the extension",
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"type": [
{
"code": "uri"
}
],
"fixedUri": "http://hl7.org/fhir/5.0/StructureDefinition/extension-VisionPrescription.lensSpecification.prism",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 0,
"max": "0",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "base64Binary"
},
{
"code": "boolean"
},
{
"code": "code"
},
{
"code": "date"
},
{
"code": "dateTime"
},
{
"code": "decimal"
},
{
"code": "id"
},
{
"code": "instant"
},
{
"code": "integer"
},
{
"code": "markdown"
},
{
"code": "oid"
},
{
"code": "positiveInt"
},
{
"code": "string"
},
{
"code": "time"
},
{
"code": "unsignedInt"
},
{
"code": "uri"
},
{
"code": "Address"
},
{
"code": "Age"
},
{
"code": "Annotation"
},
{
"code": "Attachment"
},
{
"code": "CodeableConcept"
},
{
"code": "Coding"
},
{
"code": "ContactPoint"
},
{
"code": "Count"
},
{
"code": "Distance"
},
{
"code": "Duration"
},
{
"code": "HumanName"
},
{
"code": "Identifier"
},
{
"code": "Money"
},
{
"code": "Period"
},
{
"code": "Quantity"
},
{
"code": "Range"
},
{
"code": "Ratio"
},
{
"code": "Reference"
},
{
"code": "SampledData"
},
{
"code": "Signature"
},
{
"code": "Timing"
},
{
"code": "Meta"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R5: Eye alignment compensation (new)",
"definition": "R5: `VisionPrescription.lensSpecification.prism` (new:BackboneElement)",
"comment": "Element `VisionPrescription.lensSpecification.prism` has a context of VisionPrescription.dispense based on following the parent source element upwards and mapping to `VisionPrescription`.\nElement `VisionPrescription.lensSpecification.prism` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "*",
"base": {
"path": "Extension",
"min": 0,
"max": "*"
},
"isModifier": false
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"ordered": false,
"rules": "open"
},
"min": 2,
"max": "*",
"base": {
"path": "Extension.extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.extension:amount",
"path": "Extension.extension",
"sliceName": "amount",
"short": "R5: Amount of adjustment",
"definition": "R5: `VisionPrescription.lensSpecification.prism.amount`",
"comment": "Element `VisionPrescription.lensSpecification.prism.amount` is part of an existing definition because parent element `VisionPrescription.lensSpecification.prism` requires a cross-version extension.\nElement `VisionPrescription.lensSpecification.prism.amount` is mapped to FHIR STU3 element `VisionPrescription.dispense.prism` as `Equivalent`.",
"requirements": "Standard lens prescription measures. Element `VisionPrescription.lensSpecification.prism.amount` is part of an existing definition because parent element `VisionPrescription.lensSpecification.prism` requires a cross-version extension.\nElement `VisionPrescription.lensSpecification.prism.amount` is mapped to FHIR STU3 element `VisionPrescription.dispense.prism` as `Equivalent`.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.extension:amount.url",
"path": "Extension.extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "amount"
},
{
"id": "Extension.extension:amount.value[x]",
"path": "Extension.extension.value[x]",
"short": "Amount of adjustment",
"definition": "Amount of prism to compensate for eye alignment in fractional units.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "decimal"
}
]
},
{
"id": "Extension.extension:base",
"path": "Extension.extension",
"sliceName": "base",
"short": "R5: base",
"definition": "R5: `VisionPrescription.lensSpecification.prism.base`",
"comment": "Element `VisionPrescription.lensSpecification.prism.base` is part of an existing definition because parent element `VisionPrescription.lensSpecification.prism` requires a cross-version extension.\nElement `VisionPrescription.lensSpecification.prism.base` is mapped to FHIR STU3 element `VisionPrescription.dispense.base` as `Equivalent`.",
"requirements": "Standard lens prescription measures. Element `VisionPrescription.lensSpecification.prism.base` is part of an existing definition because parent element `VisionPrescription.lensSpecification.prism` requires a cross-version extension.\nElement `VisionPrescription.lensSpecification.prism.base` is mapped to FHIR STU3 element `VisionPrescription.dispense.base` as `Equivalent`.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.extension:base.url",
"path": "Extension.extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "base"
},
{
"id": "Extension.extension:base.value[x]",
"path": "Extension.extension.value[x]",
"short": "up | down | in | out",
"definition": "The relative base, or reference lens edge, for the prism.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code"
}
],
"binding": {
"strength": "required",
"description": "A coded concept listing the base codes.",
"valueSetUri": "http://hl7.org/fhir/ValueSet/vision-base-codes|3.0.2"
}
},
{
"id": "Extension.url",
"path": "Extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "http://hl7.org/fhir/5.0/StructureDefinition/extension-VisionPrescription.lensSpecification.prism"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"min": 0,
"max": "0",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
}
}
]
}
}