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License status and Mdexa hosting, recorded separatelyAll datasets

LOINC

Verified by Mdexa · Checked against the source text under public rules.How we check

Commercial use
Conditional
Derivatives
Conditional
Redistribution
Conditional
File on Mdexa
NoLink only

a restricted part cannot be separated or the boundary is unstated: strictest part applies Derivatives are conditional: the license names the permitted ways (adding fields, adding or deleting records with an X-code, translation with notice) and forbids other derivative works. The license says some content carries third-party copyright terms: check the exceptions before use.

RestrictedLink onlyLicenseRef-Regenstrief-Institute-Inc-termsSave

Badge

Mdexa verified · Restricted · 2026-11Mdexa verifiedRestricted · 2026-11

[![Mdexa verified · Restricted · 2026-11](https://mcp.mdexa.com/v1/badge/datasets/loinc.svg)](https://mdexa.com/datasets/loinc/)

Place it on a repository or dataset page; the status and date follow the verification. About badges

Cite this pageMdexa, LOINC, https://mdexa.com/datasets/loinc/, verified 2026-11-14.

Key facts

Domain
Standards and terminology Cross-cutting
Content
Terminologies and coding systemsLogical Observation Identifiers Names and Codes (LOINC) is a clinical nomenclature that provides a universal code system for identifying laboratory and clinical observations and related content.
Size
—
Language / modality
English / Text · Tabular
Publisher
Regenstrief Institute, Inc.
Year
—
Expert review
—
Verification
Partially verified

Commercial use of LOINC

Commercial use: Conditional. The overall verdict takes the strictest part; the parts carry different licenses, listed below. License status: Restricted.

Conditions
Notice kept
Third-party rights
The source notes that some content may carry third-party rights.
License part
main data — Restricted (NOASSERTION)
License part
Group 1 Artifacts and Group 3 Artifacts — Restricted (NOASSERTION)
License part
Group 1 Documents, Group 2 Documents, and Group 3 Documents — Restricted (NOASSERTION)
License part
RELMA Community Mappings feature database — Restricted (NOASSERTION)

Quoted statements and their sources are in LOINC license evidence.

Verdicts record what sources state and are not legal advice.

Tags

Task format
Term normalization
Specialty
Multi-specialty

Author-statedInferredHuman-confirmed

LOINC license evidence 40

  1. Terms of use pagePage opened
    Third-party text · Terms of use pageLOINC is available freely under an open license. It is free for use in both commercial and non-commercial systems. This document sets forth the terms for use.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  2. Terms of use pagePage opened
    Third-party text · Terms of use pageThe Group 1 Artifacts and Group 1 Documents are Copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. All rights reserved.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  3. Terms of use pagePage opened
    Third-party text · Terms of use pageThe Group 2 Artifacts, Group 2 Documents, Group 3 Artifacts, and Group 3 Documents are Copyright © Regenstrief Institute, Inc. All rights reserved.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  1. Terms of use pagePage opened
    Third-party text · Terms of use pageLOINC® and RELMA® are registered United States trademarks of Regenstrief Institute, Inc. Regenstrief Institute, Inc. and, as applicable, the LOINC Committee reserve all other rights not expressly granted herein.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  2. Terms of use pagePage opened
    Third-party text · Terms of use pagePermission is hereby granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the Licensed Materials for any commercial or non-commercial purpose, subject to the following terms and conditions:

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  3. Terms of use pagePage opened
    Third-party text · Terms of use pageneither the Licensed Materials, nor any portion thereof, may be used for the purpose of developing or promulgating a different standard for identifying patient observations

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  4. Terms of use pagePage opened
    Third-party text · Terms of use pageThe name of, or any contents of, any fields in the Group 1 Artifacts shall not be changed. The contents of any fields in the Group 3 Artifacts shall not be changed.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  5. Terms of use pagePage opened
    Third-party text · Terms of use pageRecords may be deleted from the LOINC Table or LOINC Table Core to deal with local requirements.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  6. Terms of use pagePage opened
    Third-party text · Terms of use pageRecords also may be added to the LOINC Table and LOINC Table Core to deal with local requirements, provided that if new records are added, any new entry in the LOINC_NUM field of such new records must contain a leading alphabetic “X”

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  7. Terms of use pagePage opened
    Third-party text · Terms of use pageThe Group 1 Documents, Group 2 Documents, and Group 3 Documents may not be modified, nor may derivative works be created, without the prior written permission of the Regenstrief Institute, Inc.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  8. Terms of use pagePage opened
    Third-party text · Terms of use pageThe LOINC parts and LOINC part hierarchies shall not be used in any manner except as they are presented in the Licensed Materials (and/or in other formats of distribution approved by Regenstrief Institute, Inc.)

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  9. Terms of use pagePage opened
    Third-party text · Terms of use pageIn addition to its use with the RELMA program, the LOINC Table that is obtained with the RELMA program may be used independently and the LOINC Table also may be modified as permitted herein.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  10. Terms of use pagePage opened
    Third-party text · Terms of use pageThe other database tables from the RELMA database or the associated search index files may not be used or modified except in conjunction with the authorized use of the RELMA program, unless prior written permission is granted by the Regenstrief Institute, Inc.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  11. Terms of use pagePage opened
    Third-party text · Terms of use pageNo additional permission to modify or distribute this internet-based content is granted through the use of the RELMA program.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  12. Terms of use pagePage opened
    Third-party text · Terms of use pageThe accuracy and completeness of the information in the RELMA Community Mappings feature is not verified by Regenstrief Institute, Inc. or the LOINC Committee.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  13. Terms of use pagePage opened
    Third-party text · Terms of use pageThe information provided by the RELMA Community Mappings feature may not be copied or distributed.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  14. Terms of use pagePage opened
    Third-party text · Terms of use pageAccess to the information provided by the RELMA Community Mappings feature may not be shared.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  15. Terms of use pagePage opened
    Third-party text · Terms of use pageRegenstrief Institute, Inc. shall have a non-exclusive, irrevocable license, without payment or fees, to use mappings submitted to the RELMA Community Mappings feature for any and all purposes related to LOINC, RELMA, and Regenstrief Institute Inc.’s mission

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  16. Terms of use pagePage opened
    Third-party text · Terms of use page“This material contains content from LOINC ( http://loinc.org ). LOINC is copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license .

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  17. Terms of use pagePage opened
    Third-party text · Terms of use pageWhere the product or service is distributed on a fixed storage medium, a text file containing this notice also must be stored on the storage medium in a file called “LOINC_short_license.txt.”

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  18. Terms of use pagePage opened
    Third-party text · Terms of use pageAny such product or service is either (1) in compliance with all applicable third-party copyright license terms as described in the Notice of Third-Party Content and Copyright Terms section of this license

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  19. Terms of use pagePage opened
    Third-party text · Terms of use pageAny information that is extracted from the Licensed Material must always be associated with the corresponding identifier from LOINC (e.g., LOINC code, LOINC Answer List ID, LOINC Answer String ID, LOINC Part Number, or LOINC Group ID) and include the corresponding LOINC display name:

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  20. Terms of use pagePage opened
    Third-party text · Terms of use pageIncluding the appropriate version number of the Licensed Material is strongly encouraged, but not required.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  21. Terms of use pagePage opened
    Third-party text · Terms of use pageUse and distribution of the Licensed Materials in ways that are not specifically discussed herein shall always be accompanied by the notice provided in Section 10 hereof.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  22. Terms of use pagePage opened
    Third-party text · Terms of use pageThe names “Regenstrief,” “Regenstrief Foundation,” “Regenstrief Institute, Inc.,” and “LOINC Committee” may not be used in a way which could be interpreted as an endorsement or a promotion of any product or service without prior written permission of the Regenstrief Institute, Inc.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  23. Terms of use pagePage opened
    Third-party text · Terms of use pageThere is no limit on the number of copies of the Licensed Materials that may be made and distributed

    Statement found in snapshot s03 (terms-page)

    loinc.org2026-11-13 · s03
  24. Terms of use pagePage opened
    Third-party text · Terms of use pageprovided that each copy must include this Copyright Notice and License, and must include the appropriate version number of the Licensed Materials if the Licensed Materials have a version number, or the release date if the Licensed Materials do not have a version number.

    Statement found in snapshot s03 (terms-page)

    loinc.org2026-11-13 · s03
  25. Terms of use pagePage opened
    Third-party text · Terms of use pageSubject to Section 1 and the other restrictions hereof, portions of the Group 1 Artifacts or Group 3 Artifacts may be incorporated into other products and services, such as laboratory test compendiums, data dictionaries, online terminology services

    Statement found in snapshot s03 (terms-page)

    loinc.org2026-11-13 · s03
  26. Terms of use pagePage opened
    Third-party text · Terms of use pageRegenstrief Institute, Inc. shall be notified via email at [contact address removed] prior to translation of any of the Licensed Materials into a language other than English.

    Statement found in snapshot s03 (terms-page)

    loinc.org2026-11-13 · s03
  27. Terms of use pagePage opened
    Third-party text · Terms of use pageExcept for the right to translate the Licensed Materials into a language other than English pursuant to this section, no other right to create a derivative work of any of the Licensed Materials is hereby granted.

    Statement found in snapshot s03 (terms-page)

    loinc.org2026-11-13 · s03
  28. Terms of use pagePage opened
    Third-party text · Terms of use pageThe name of, or any contents of, any fields in the Group 1 Artifacts shall not be changed.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  29. Terms of use pagePage opened
    Third-party text · Terms of use pageAny such translation is a derivative work, and Regenstrief Institute, Inc. shall be assigned and hereby is assigned all right, title and interest in and to such derivative work

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  30. Terms of use pagePage opened
    Third-party text · Terms of use pageThe LOINC parts and LOINC part hierarchies shall not be used in any manner except as they are presented in the Licensed Materials

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  31. Terms of use pagePage opened
    Third-party text · Terms of use pageThere is no limit on the number of copies of the Licensed Materials that may be made and distributed, provided that each copy must include this Copyright Notice and License

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  32. Terms of use pagePage opened
    Third-party text · Terms of use pageUnder the terms of the Affiliate License, use of SNOMED CT in countries that are not IHTSDO Members is subject to reporting and fee payment obligations.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  33. Terms of use pagePage opened
    Third-party text · Terms of use pageis available to authorized UMLS Metathesaurus Licensees.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  34. Terms of use pagePage opened
    Third-party text · Terms of use pageInclusion in LOINC does not imply permission to use or administer third-party content without following the third-party content owner’s license and/or terms of use.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  35. Terms of use pagePage opened
    Third-party text · Terms of use pagemay not be used in a way which could be interpreted as an endorsement or a promotion of any product or service without prior written permission of the Regenstrief Institute, Inc.

    Statement found in snapshot s02 (page)

    loinc.org2026-11-12 · s02
  36. Terms of use pagePage opened
    Third-party text · Terms of use pageNew fields may be added to the Group 1 Artifacts and Group 3 Artifacts to attach additional information to existing LOINC records.

    Statement found in snapshot s03

    loinc.org2026-11-14 · s03
  37. Terms of use pagePage opened
    Third-party text · Terms of use pageAny such product or service is either (1) in compliance with all applicable third-party copyright license terms as described in the Notice of Third-Party Content and Copyright Terms section of this license, or (2) third-party copyrighted contents (e.g., third-party survey instruments and answers) ar

    Statement found in snapshot s03

    loinc.org2026-11-14 · s03

Source and lineage

No upstream or downstream datasets recorded.

Known issues with LOINC

—

Preflight

Not run Runs only on ingested data; says nothing about quality.

Downloading LOINC and API access

No file on Mdexa (see the verdict). Get it from the source and confirm the terms there:

Citing LOINC

Mdexa, LOINC, https://mdexa.com/datasets/loinc/, verified 2026-11-14.
More citation details

The source gives no citation text; the line above cites this card.

Machine-readable

loinc.jsonloinc.mdcatalog.json

Change log 3
2026-11-14The license says some content carries third-party copyright terms: check the exceptions before use.
2026-11-14Derivatives are conditional: the license names the permitted ways (adding fields, adding or deleting records with an X-code, translation with notice) and forbids other derivative works.
2026-11-14Listed on 2026-11-14. Judged by public rules and checked a second time before listing. The two passes disagreed; the stricter reading is carried: Second pass: derivatives: [甲类] 改编确受限制（字段不得改动、文档不得修改、除翻译外不授予演绎权、翻译权利须转让），但原文同时明示了允许的改编路径：可加新字段、可为本地需要增删记录（新码须加 X 前缀）、可将部分内容并入其他产品与服务、可翻译（须事先通知）。按第25、28条的精神，原文明示许可路径时取 conditional 而非 no。按原文应取 conditional；比拟定更宽，按规则不自动放宽，交采纳环节决定。 | redistribution: [乙类] 原文明示复制分发不限份数，但每份须附版权声明与许可、版本号；并入产品须附指定声明。再分发被涉及且附条件，应为 conditional；另 [甲类] RELMA 社区映射信息不得复制或分发（可分离部分）。

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