LOINC Accessory Files

The LOINC distribution includes several LOINC Accessory Files and other resources. Some of these files are updated with each LOINC release. Others have their own timelines for being updated.

The hierarchy and panel structure files are for advanced LOINCers who want to do more with the LOINC codes in their system. For entry-level LOINCers, we've created a set of three data-driven lists to help you get LOINCing fast.

LOINC Hierarchy and Panel Structure Files

Please log in to your LOINC account to download these files. If you do not have a LOINC account, please complete our free registration.


zip
10 MB

LOINC Panels and Forms File

An export of the primary Panels and Forms represented in LOINC. This package contains many domains of content, including: Laboratory panels; Clinical Assessments, Scales, and Measures; Clinical Documents and Summary panels; Diagnostic studies (non-lab) panels; US Government panels (including the CMS survey instruments MDSv2, MDSv3, OASIS, and CARE); Survey Instruments; and other kinds of panels. The hierarchical structure is represented in the file by the PARENT_ID, ID and SEQUENCE fields. The root, or top level, records in the file are those records where the PARENT_ID = ID. The records are in a Microsoft Excel spreadsheet (compressed as a zip file) with separate worksheets (tabs) for the form structure, loinc code details, and answer lists.


zip
1 MB

LOINC Multiaxial Hierarchy

An export of the LOINC Multi-axial hierarchy in a computable format. The records in this file represent nodes of the hierarchy, whether LOINC Parts or full LOINC codes. The ordered sequence at any level of the hierarchy is given by the SEQUENCE field. Top level nodes in the hierarchy are those where PATH_TO_ROOT is null. This file is a "Comma Separated Value" text (compressed as a zip file), which can be read by Microsoft Excel and is also suitable for import into most common database platforms. If you open the file in Excel, be aware that there is problem with how Excel automatically formats the "CODE" column by turning strings into dates. See http://bit.ly/io5Pv for more information.


zip
56 KB

LOINC Document Ontology

An export of the LOINC terms in the Document Ontology class (DOC.ONTOLOGY) and the values they contain from each axis of the Document Ontology. The axis values are identified by LOINC Part Numbers and classified according their type (Setting, TypeOfService, etc). Because some LOINC terms contain combinations of Document Ontology values from within the same axis, the PartSequenceOrder field indicates their proper order within that axis. This zip file archive contains: 1) The Document Ontology file in CSV text format with each record on a separate line (terminated by CR/LF) and each field delimited by a comma character. 2) The LOINC License in a text file format. *Note: This file does not include any deprecated terms.


zip
15 KB

LOINC Context-Specific Hierarchy Template

Template of the generalized LOINC Context-specific Hierarchy model in Microsoft Access™ database format, compressed as a zip file. The schema for this database is described in detail within the RELMA Manual under the CONTEXT SPECIFIC HIERARCHIES section.

Common LOINC Result and Order Codes

LOINC Top 2000+ Results

Get started with an empirical list of the most frequently used LOINC result codes. Expert mapping advice included.

LOINC Top 300 Orders

A super short list of LOINCs covering >95% of U.S. lab orders. Empirically derived and vetted by consensus.

LOINC Common UCUM Codes

Lost with UCUM? This list makes it easy for your typical reporting units of measure.

LOINC Linguistic Variants File

Please log in to your LOINC account to download these files. If you do not have a LOINC account, please complete our free registration.


zip
18 MB

LOINC Linguistic Variants

An export of the LOINC Linguistic Variants. This zip file archive contains: 1) a set of linguistic variants in CSV text format with each record on a separate line (terminated by CR/LF) and each field delimited by a comma character. Each linguistic variant file is identified by its ISO language and country codes, 2) the LinguisticVariants table that lists the available linguistic variants in CSV text format, and 3) the LOINC License in a text file format. As noted in the LOINC License, the translations are subject to the same license rights and restrictions as the main LOINC distribution.

LOINC/IEEE Medical Device Code Mapping Table

Please log in to your LOINC account to download these files. If you do not have a LOINC account, please complete our free registration.


zip
31 KB

LOINC/IEEE Medical Device Code Mapping Table

The LOINC/IEEE Medical Device Code Mapping Table is distributed by Regenstrief as product of collaboration between the IEEE-SA and Regenstrief Institute, Inc. The main file contains linkages between LOINC terms and content from IEEE EMB/11073 standard. From the current version of LOINC, it includes the LOINC code, Long Common Name, and any applicable attribution statement. From IEEE 11073-10101, it includes the Reference ID, Numeric code, Dimensionality, and Description (when available). This zip file archive contains: 1) the LOINC/IEEE Medical Device Code Mapping Table in CSV text format with each record on a separate line (terminated by CR/LF) and each field delimited by a comma character. 2) The LOINC License in a text file format. *Note: This file does not include any deprecated terms.

LOINC/SNOMED CT Collaboration Files

Please log in to your LOINC account to download these files. If you do not have a LOINC account, please complete our free registration.


zip
2 MB

LOINC/SNOMED CT Expression Association and Map Sets File - Technology Preview (RF2 Format)

The LOINC/SNOMED CT Expression Association and Map Sets Technology Preview was generated as part of the cooperative agreement signed between the Regenstrief Institute and the IHTSDO in July 2013. The agreement details how SNOMED and LOINC will be linked through: 1) a map of LOINC terms to post-coordinated SNOMED CT expressions; 2) a map of LOINC parts to SNOMED concepts; 3) a map between LOINC terms and existing pre-coordinated SNOMED concepts; 4) LOINC Answer sets mapped to SNOMED codes; and 5) addition of new content in either terminology. This Technology Preview includes artifacts related to items 1, 2, and 5 above. The Technology Preview contains two main sets: 1) LOINC Term to SNOMED Expression Reference Set, and 2) LOINC Part to SNOMED Reference. This Technology Preview (draft mapping) is based on the 20160131 version of the IHTSDO International release of SNOMED CT and Version 2.54 of LOINC released December 2015. The Technology Preview contains two main sets. Please read Release Notes contained in the zip archive for more information about this Technology Preview. The Technology Preview is distributed for evaluation purposes only. It is not for use in production clinical systems or in clinical settings. USE WITHIN CLINICAL SYSTEMS CANNOT BE SUPPORTED AT THIS TIME.


zip
2 MB

LOINC/SNOMED CT Expression Association and Map Sets File - Technology Preview (OWL Format)

The LOINC/SNOMED CT Expression Association and Map Sets Technology Preview was generated as part of the cooperative agreement signed between the Regenstrief Institute and the IHTSDO in July 2013. The agreement details how SNOMED and LOINC will be linked through: 1) a map of LOINC terms to post-coordinated SNOMED CT expressions; 2) a map of LOINC parts to SNOMED concepts; 3) a map between LOINC terms and existing pre-coordinated SNOMED concepts; 4) LOINC Answer sets mapped to SNOMED codes; and 5) addition of new content in either terminology. This Technology Preview includes artifacts related to items 1, 2, and 5 above. The Technology Preview contains two main sets: 1) LOINC Term to SNOMED Expression Reference Set, and 2) LOINC Part to SNOMED Reference. This Technology Preview (draft mapping) is based on the 20160131 version of the IHTSDO International release of SNOMED CT and Version 2.54 of LOINC released December 2015. The Technology Preview contains two main sets. Please read Release Notes contained in the zip archive for more information about this Technology Preview. The Technology Preview is distributed for evaluation purposes only. It is not for use in production clinical systems or in clinical settings. USE WITHIN CLINICAL SYSTEMS CANNOT BE SUPPORTED AT THIS TIME.


zip
2 MB

LOINC/SNOMED CT Expression Association and Map Sets File - Technology Preview (Human Readable Format)

The LOINC/SNOMED CT Expression Association and Map Sets Technology Preview was generated as part of the cooperative agreement signed between the Regenstrief Institute and the IHTSDO in July 2013. The agreement details how SNOMED and LOINC will be linked through: 1) a map of LOINC terms to post-coordinated SNOMED CT expressions; 2) a map of LOINC parts to SNOMED concepts; 3) a map between LOINC terms and existing pre-coordinated SNOMED concepts; 4) LOINC Answer sets mapped to SNOMED codes; and 5) addition of new content in either terminology. This Technology Preview includes artifacts related to items 1, 2, and 5 above. The Technology Preview contains two main sets: 1) LOINC Term to SNOMED Expression Reference Set, and 2) LOINC Part to SNOMED Reference. This Technology Preview (draft mapping) is based on the 20160131 version of the IHTSDO International release of SNOMED CT and Version 2.54 of LOINC released December 2015. The Technology Preview contains two main sets. Please read Release Notes contained in the zip archive for more information about this Technology Preview. The Technology Preview is distributed for evaluation purposes only. It is not for use in production clinical systems or in clinical settings. USE WITHIN CLINICAL SYSTEMS CANNOT BE SUPPORTED AT THIS TIME.

LOINC/RSNA Radiology Playbook

Please log in to your LOINC account to download these files. If you do not have a LOINC account, please complete our free registration.


zip
257 KB

LOINC/RSNA Radiology Playbook File

The LOINC/RSNA Radiology Playbook is the product of a collaboration between the RSNA and Regenstrief Institute, Inc to develop a unified model for naming radiology procedures. The main file contains linkages between LOINC radiology terms, the attribute values of the Unified Model as both LOINC Parts and RadLex terms, and any applicable mappings to RadLex Playbook terms. This zip file archive contains: 1) the LOINC/RSNA Radiology file in CSV text format with each record on a separate line (terminated by CR/LF) and each field delimited by a comma character. 2) The LOINC License in a text file format. *Note: This file does not include any deprecated terms.