The fully-specified name of LOINC is divided into six main Parts, as described in the LOINC Users’ Guide. The Part Search screen within SearchLOINC and RELMA lets you search for matching LOINC Parts.

Part Search results include the Part number, the Part type (Component, Method, etc.), the Part name/concept, the Part display name (an expanded version of the name/concept), and the preferred abbreviation for that Part.

The search string must follow the syntax described in the Syntax section of this document. The field names listed in the Part Field Names section of this document can also be used in the search string.

The Reference Information button, when checked, enforces that search results must contain a reference information Description.

Additional description and discussion of LOINC Parts is provided in the LOINC Users’ Guide.

Part Search Field Names

Advanced users can use the following field names in the search string when using the RELMA Part Search tab.

Abbreviation

The preferred abbreviation for this part. To find all the parts containing Gie anywhere in the preferred abbreviation use the query:

Abbreviation:Gie

Article

Allowed values:

True

False

Indicates whether or not a part is linked to an article. To find all the parts containing choriogonadotropin that are linked to an article use the query:

choriogonadotropin Article:true

Book

Allowed values:

True

False

Indicates whether or not a part is linked to a book. To find all the parts that are linked to a book use the query:

Book:true

Citation

Allowed values:

True

False

Indicates whether or not a part is linked to a citation. To find all the parts that are linked to a citation use the query:

Citation:true

ClassList

Contains a delimited list of LOINC classes that are associated with the LOINC terms that use a part. To find the parts that are used in LOINC coagulation terms use the query:

classlist:coag

Hint
To get the complete list of LOINC classes use the query:type:class

CreatedOn

The date that the PART was originally created. The value is stored in “YYYYMMDD” format. To search for all PARTs that were created in August of 2013 use the query:

createdon:201308*

Description

Allowed values:

True

False

Indicates whether or not a part is linked to a description. To find all the parts containing ampicillin that are linked to a description use the query:

ampicillin Description:true

DisplayName

The name of the part as displayed in the hierarchy. To find all the parts containing oxalate anywhere in the display name use the query:

DisplayName:oxalate

Image

Allowed values:

True

False

Indicates whether or not a part is linked to an image. To find all the parts containing mandibular that are linked to an image use the query:

mandibular Image:true

MolecularWeight

Allowed values:

True

False

75.07

94.97

Use True to find all PARTs that have an associated molecular weight. You can also search for a specific molecular weight. Examples:

MolecularWeight:true

MolecularWeight:75.07

OriginalForm

Allowed values:

True

False

Indicates whether or not a part is linked to an original form. To find all the parts that are linked to an original form use the query:

OriginalForm:true

PackageInsert

Allowed values:

True

False

Indicates whether or not a part is linked to a package insert. To find all the parts containing mellifera that are linked to a package insert use the query:

mellifera PackageInsert:true

Synonyms

To search for all the parts containing Dengue that also contain fever anywhere in the synonyms field use the query:

Dengue Synonyms:fever

TechnicalBrief

Allowed values:

True

False

Indicates whether or not a part is linked to a technical brief. To find all the parts containing calciferol that are linked to a technical brief use the query:

calciferol TechnicalBrief:true

Type

The type of Part. This field can contain the following values.

  • Adjustment
  • Challenge
  • Class
  • Component
  • Divisors
  • Fragment
  • Method
  • Modifier
  • Property
  • Scale
  • Suffix
  • Super
  • SuperClass
  • System
  • Time

To find all the parts with a type of Component use the query:

Type:Component

WebContent

Allowed values:

True

False

Indicates whether or not a part is linked to web content. To find all the parts containing allergy that are linked to web content use the query:

allergy WebContent:true