This template is employed when the LOINC term involves an observation that inherently exists within or is associated with something else.

This template is documented in Confluence here: Quality observable with Inheres in for LOINC (observable entity) - v1.0

The java implementation of this template can be found here.

Attributes

• LOINC Property: Represents the property of the observation, such as mass concentration or presence.

• LOINC Scale: Describes the scale type, like quantitative or qualitative.

• LOINC Time: Indicates the time aspect of the observation, e.g., single point in time.

• LOINC System: Specifies the direct site of the observation.

• LOINC Method: Describes the technique used for the observation.

• LOINC Component: Specifies what the observation inherently exists within or is associated with.

Template slots are filled by taking the preferred term of the relevant value from the model and making the initial character lower case, if allowed by the case significance setting of the preferred term.

[PROPERTY] of [COMPONENT] in [SYSTEM] at [TIME] by [METHOD] using [DEVICE] [CHALLENGE]

Some slots are optional, and are then tidied up along with any linking words (eg 'using')

The LOINC Long Common Name is specified as the Preferred Term and the LOINC Short Common Name is also included unchanged as an acceptable synonym. Finally a terse form of the LOINC Parts is added, with all part names specified, separated by colons.

In the case of the example below, this results in the following terms:

This template is utilized when the LOINC term represents a quality observable with a component. It's suitable for measurements or observations that involve a specific component.

This template is documented here: Quality observable with Component for LOINC (observable entity) - v1.0

The java implementation of this template can be found here.

Attributes

• LOINC Property: Represents the property of the observation, such as mass concentration or presence.

• LOINC Scale: Describes the scale type, like quantitative or qualitative.

• LOINC Time: Indicates the time aspect of the observation, e.g., single point in time.

• LOINC System: Specifies the direct site of the observation.

• LOINC Method: Describes the technique used for the observation.

• LOINC Component: Represents the specific component being measured or observed.

Template slots are filled by taking the preferred term of the relevant value from the model and making the initial character lower case, if allowed by the case significance setting of the preferred term.

[PROPERTY] of [COMPONENT] in [SYSTEM] at [TIME] by [METHOD] using [DEVICE] [CHALLENGE]481191010000118

Some slots are optional, and are then tidied up along with any linking words (eg 'using')

The LOINC Long Common Name is specified as the Preferred Term and the LOINC Short Common Name is also included unchanged as an acceptable synonym. Finally a terse form of the LOINC Parts is added, with all part names specified, separated by colons.

In the case of the example below, this results in the following terms:

Loinc Parts

This template is used for LOINC Concepts that do not have all their parts specified and which, as such, act as groupers for all child concepts which also have the same parts. These grouper concepts are all expected to be orderable.

This template is documented here: Quality observable with Component for LOINC Grouper (observable entity) - v1.0

The java implementation of this template can be found here.

Attributes

• LOINC Property: Represents the property of the observation, such as mass concentration or presence.

• LOINC System: Specifies the direct site of the observation.

• LOINC Component: Represents the specific component being measured or observed.

Template slots are filled by taking the preferred term of the relevant value from the model and making the initial character lower case, if allowed by the case significance setting of the preferred term.

The LOINC Long Common Name is specified as the Preferred Term and the LOINC Short Common Name is also included unchanged as an acceptable synonym. Finally a terse form of the LOINC Parts is added, with all part names specified, separated by colons.

In the case of the example below, this results in the following terms:

LOINC Term 108011-8

This template is employed when the LOINC term represents an impression observable, capturing a high-level clinical interpretation or summary derived from one or more observations, rather than a direct measurement or finding.

Impression observables concepts all have a primitive definition, following the template described below and documented here: Impression observable for LOINC (observable entity) - v1.0.

Attributes

• LOINC Property: indicates that the quality being observered is some impression or interpretation.

Template

This template is utilized when the LOINC term represents an impression observable.

Model

<<< 363787002 |Observable entity (observable entity)| : 
{ 370130000 |Property (attribute)| -> 118580000 |Impression AND/OR interpretation of study (property) (qualifier value)| }

Terming

In the case of impression concept, the LOINC Long Common Name is used as both the FSN (with a semantic tag of "(observable entity)" added), and the Preferred Term. The LOINC Short Common Name is also included unchanged as an acceptable synonym.

In the case of the example below, this results in the following terms:

There are no LOINC parts represented in the SNOMED model for these impression concepts. The SNOMED concepts are defined as primitive, with only the single property attribute present, always taking a value of 118580000 |Impression AND/OR interpretation of study (property).

This template is employed when the LOINC term involves an observation that specifies a process or an outcome of a process

This template is documented in Confluence here: Process Observable for LOINC (observable entity) - v1.0

The java implementation of this template can be found here.

Attributes

• LOINC Property: Represents the property of the observation, such as mass concentration or presence.

• LOINC Scale: Describes the scale type, like quantitative or qualitative.

• LOINC Time: Indicates the time aspect of the observation, e.g., single point in time.

• LOINC System: Specifies the direct site of the observation.

• LOINC Method: Describes the technique used for the observation.

• LOINC Component: Specifies the SNOMED CT process output.

Template slots are filled by taking the preferred term of the relevant value from the model and making the initial character lower case, if allowed by the case significance setting of the preferred term.

Some slots are optional, and are then tidied up along with any linking words (eg 'using')

The LOINC Long Common Name is specified as the Preferred Term and the LOINC Short Common Name is also included unchanged as an acceptable synonym. Finally a terse form of the LOINC Parts is added, with all part names specified, separated by colons.

In the case of the example below, this results in the following terms:

This template is used when the LOINC term involves a component and is relative to something else as a ratio, such as a reference point or another component.

Note that Ratio concepts are given a parent of 540131010000107 |Ratio observable (observable entity)| to group them together.

This template is documented in Confluence here: Quality observable with Component and Relative to for LOINC Ratios (observable entity) - v1.0

The java implementation of this template can be found here.

Attributes

• LOINC Property: Represents the property of the observation, such as mass concentration or presence.

• LOINC Scale: Describes the scale type, like quantitative or qualitative.

• LOINC Time: Indicates the time aspect of the observation, e.g., single point in time.

• LOINC System: Specifies the direct site of the observation.

• LOINC Method: Describes the technique used for the observation.

• LOINC Component: Represents the specific component being measured or observed.

• LOINC Divisor: Specifies what the observation is relative to.

Template slots are filled by taking the preferred term of the relevant value from the model and making the initial character lower case, if allowed by the case significance setting of the preferred term.

Some slots are optional, and are then tidied up along with any linking words (eg 'using'). The SEPARATOR is determined programatically and might be "to" or a "/" symbol.

The LOINC Long Common Name is specified as the Preferred Term and the LOINC Short Common Name is also included unchanged as an acceptable synonym. Finally a terse form of the LOINC Parts is added, with all part names specified, separated by colons.

In the case of the example below, this results in the following terms:

LOINC Term

This template is used when the LOINC term involves a component and is relative to something else, such as a reference point or another component.

This template is documented in Confluence here: Quality observable with Component and Relative to for LOINC (observable entity) - v1.0”

The java implementation of this template can be found here.

Attributes

• LOINC Property: Represents the property of the observation, such as mass concentration or presence.

• LOINC Scale: Describes the scale type, like quantitative or qualitative.

• LOINC Time: Indicates the time aspect of the observation, e.g., single point in time.

• LOINC System: Specifies the direct site of the observation.

• LOINC Method: Describes the technique used for the observation.

• LOINC Component: Represents the specific component being measured or observed.

• LOINC Divisor: Specifies what the observation is relative to.

Template slots are filled by taking the preferred term of the relevant value from the model and making the initial character lower case, if allowed by the case significance setting of the preferred term.

[PROPERTY] of [COMPONENT] to [DIVISORS] in [SYSTEM] at [TIME] by [METHOD] using [DEVICE] [CHALLENGE]

Some slots are optional, and are then tidied up along with any linking words (eg 'using')

The LOINC Long Common Name is specified as the Preferred Term and the LOINC Short Common Name is also included unchanged as an acceptable synonym. Finally a terse form of the LOINC Parts is added, with all part names specified, separated by colons.

In the case of the example below, this results in the following terms:

Loinc Parts

LOINC Terms are expressed as SNOMED CT concepts by following a transformation algorithm detailed in pseudocode. This has been implemented as a number of Java classes, freely available in this package in the SNOMED International GitHub Reporting Engine project.

Overview

The processing algorithm follows these high level steps

1. The Java class loads the Loinc.csv and Part.csv file from the LOINC release

2. A part detail file is also supplied, which specifies part identifiers ("LP") for each part used in each LOINC Term

3. The process works through the part detail file, selecting a template based on the 'Property' part of each LOINC Term

4. Each part is mapped to a SNOMED CT Attribute where:

   1. The Part Type maps to a SNOMED Attribute type as specified in the template and

   2. The Part Number maps to a SNOMED Attribute value as specified via the Part/Attribute Map (maintained in the Snap2Snomed tool)

5. The terms for each concept are then completed, using the preferred terms of the attribute values that have been modelled.

6. The entire set of modelled concepts is the compared against the LOINC Extension in the SI Authoring Platform

7. A delta archive is produced which details changes required from the previous state of the content.

In addition, LOINC Panels are created as primitive concepts, where the individual tests in each panel are available as transformed SNOMED CT concepts.

See

This template is utilized for LOINC terms representing susceptibility observations, such as microbial susceptibility tests.

This template is documented here: Susceptibility observable for LOINC (observable entity) - v1.0

The java implementation of this template can be found here.

Attributes

• LOINC Property: Represents the property of the observation, such as mass concentration or presence.

• LOINC Scale: Describes the scale type, like quantitative or qualitative.

• LOINC Time: Indicates the time aspect of the observation, e.g., single point in time.

• LOINC System: Specifies the direct site of the observation.

• LOINC Method: Describes the technique used for the observation.

• LOINC Component: Specifies the target organism or substance towards which the susceptibility is observed

Note the three angle brackets at the start of this concept expression, indicating that the concept is primitive.

This will be because no attribute mapping was available for the "system" part.

This is also reflected in the terms below, where the LOINC system "Isolate.meningitis" has been used directly.

Template slots are filled by taking the preferred term of the relevant value from the model and making the initial character lower case, if allowed by the case significance setting of the preferred term.

Some slots are optional, and are then tidied up along with any linking words (eg 'using')

The LOINC Long Common Name is specified as the Preferred Term and the LOINC Short Common Name is also included unchanged as an acceptable synonym. Finally a terse form of the LOINC Parts is added, with all part names specified, separated by colons.

In the case of the example below, this results in the following terms:

LOINC Term

This template is employed when the LOINC term involves an observation that specifies an aspect of a process at a point in time where the process output is not included.

This template is documented here: Process Observable for LOINC - No Process output, With Time Aspect (observable entity) - v0.1

The java implementation of this template can be found here.

Attributes

• LOINC Property: Represents the property of the observation, such as mass concentration or presence.

• LOINC Scale: Describes the scale type, like quantitative or qualitative.

• LOINC Time: Indicates the time aspect of the observation, e.g., single point in time.

• LOINC System: Specifies the direct site of the observation.

• LOINC Method: Describes the technique used for the observation.

• LOINC Component: Specifies what the observation inherently exists within or is associated with.

Template slots are filled by taking the preferred term of the relevant value from the model and making the initial character lower case, if allowed by the case significance setting of the preferred term.

Some slots are optional, and are then tidied up along with any linking words (eg 'using')

The LOINC Long Common Name is specified as the Preferred Term and the LOINC Short Common Name is also included unchanged as an acceptable synonym. Finally a terse form of the LOINC Parts is added, with all part names specified, separated by colons.

In the case of the example below, this results in the following terms:

LOINC Term

This template is employed when the LOINC term involves an observation that is specified with a system, but not a component

This template is documented in Confluence here: Quality observable with Inheres in (System, no Component) for LOINC (observable entity) - v1.0

The java implementation of this template can be found here.

Attributes

• LOINC Property: Represents the property of the observation, such as mass concentration or presence.

• LOINC Scale: Describes the scale type, like quantitative or qualitative.

• LOINC Time: Indicates the time aspect of the observation, e.g., single point in time.

• LOINC System: Specifies the direct site of the observation.

• LOINC Method: Describes the technique used for the observation.

Template slots are filled by taking the preferred term of the relevant value from the model and making the initial character lower case, if allowed by the case significance setting of the preferred term.

[PROPERTY] of [SYSTEM] at [TIME] by [METHOD] using [DEVICE] [CHALLENGE]

Some slots are optional, and are then tidied up along with any linking words (eg 'using')

The LOINC Long Common Name is specified as the Preferred Term and the LOINC Short Common Name is also included unchanged as an acceptable synonym. Finally a terse form of the LOINC Parts is added, with all part names specified, separated by colons.

In the case of the example below, this results in the following terms: