Point-of-Care Device Implementation Guide
1.0.0 - STU 1

Point-of-Care Device Implementation Guide, published by HL7 International / Devices. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/uv-pocd/ and changes regularly. See the Directory of published versions

## Extension: Visual Grid extension

Official URL: http://hl7.org/fhir/uv/pocd/StructureDefinition/visual-grid | Version: 1.0.0
Standards status: Trial-use | Maturity Level: 2 | Computable Name: VisualGrid

StructureDefinition that adds grid line definitions to a DeviceMetric.

Context of Use

This extension may be used on the following element(s)

- Element ID: `DeviceMetric`

Usage info

Usages:

- Use this Extension: Sample Array DeviceMetric profile
- Examples for this Extension: DeviceMetric/CVPSampleArrayDeviceMetric

You can also check for usages in the FHIR IG Statistics

### Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

- Differential Table
- Snapshot Table
- Statistics/References
- All

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Grid line definitions
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:position |  | 1..* | Extension | Grid line position
url |  | 1..1 | uri | "position"
valueQuantity |  | 1..1 | Quantity | Value of extension
extension:level |  | 0..1 | Extension | Grid line level
url |  | 1..1 | uri | "level"
valueUnsignedInt |  | 1..1 | unsignedInt | Value of extension
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/pocd/StructureDefinition/visual-grid"
value[x] |  | 0..0 |  | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Grid line definitions
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:position |  | 1..* | Extension | Grid line position
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "position"
Slices for value[x] |  | 1..1 | Quantity | Value of extension Slice: Unordered, Closed by type:$this
value[x]:valueQuantity |  | 1..1 | Quantity | Value of extension
extension:level |  | 0..1 | Extension | Grid line level
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "level"
Slices for value[x] |  | 1..1 | unsignedInt | Value of extension Slice: Unordered, Closed by type:$this
value[x]:valueUnsignedInt |  | 1..1 | unsignedInt | Value of extension
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/pocd/StructureDefinition/visual-grid"
Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: StructureDefinition that adds grid line definitions to a DeviceMetric.

- position: Quantity: Grid line position for waveform presentation.
- level: unsignedInt: Grid line level (0 is most important).

Maturity: 2

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Grid line definitions
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:position |  | 1..* | Extension | Grid line position
url |  | 1..1 | uri | "position"
valueQuantity |  | 1..1 | Quantity | Value of extension
extension:level |  | 0..1 | Extension | Grid line level
url |  | 1..1 | uri | "level"
valueUnsignedInt |  | 1..1 | unsignedInt | Value of extension
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/pocd/StructureDefinition/visual-grid"
value[x] |  | 0..0 |  | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Grid line definitions
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:position |  | 1..* | Extension | Grid line position
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "position"
Slices for value[x] |  | 1..1 | Quantity | Value of extension Slice: Unordered, Closed by type:$this
value[x]:valueQuantity |  | 1..1 | Quantity | Value of extension
extension:level |  | 0..1 | Extension | Grid line level
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "level"
Slices for value[x] |  | 1..1 | unsignedInt | Value of extension Slice: Unordered, Closed by type:$this
value[x]:valueUnsignedInt |  | 1..1 | unsignedInt | Value of extension
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/pocd/StructureDefinition/visual-grid"
Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: StructureDefinition that adds grid line definitions to a DeviceMetric.

- position: Quantity: Grid line position for waveform presentation.
- level: unsignedInt: Grid line level (0 is most important).

Maturity: 2

Other representations of profile: CSV, Excel, Schematron

#### Constraints

Id | Grade | Path(s) | Description | Expression
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`