# ATC/DDD Index

License: restricted (LicenseRef-WHO-Collaborating-Centre-for-Drug-Statistics-Methodology-terms); Mdexa hosting: link-only. Second pass: redistribution: [甲类] 原文涉及分发：为商业目的的分发被禁止，非商业分发未提及；该项被条款涉及且受限，应为 conditional，不是 unstated。

- Commercial use: No · Derivatives: No · Redistribution: Conditional · File on Mdexa: No
- License status: Restricted (LicenseRef-WHO-Collaborating-Centre-for-Drug-Statistics-Methodology-terms)
- Mdexa hosting: Link only — License restricted, judged by public rules and checked by a second-pass model. Link only.
- Last verified: 2026-11-14
- Card: https://mdexa.com/datasets/atc-ddd/

## Key facts

- Domain: Pharmacy and drugs, Standards and terminology
- Content type: Terminologies and coding systems
- Size: —
- Language: English
- Modality: Text
- Publisher: WHO Collaborating Centre for Drug Statistics Methodology
- Year: —

## Commercial use of ATC/DDD Index

- Commercial use: No.
- License status: Restricted.
- Conditions: Attribution, No derivatives
Verdicts record what sources state and are not legal advice.

## ATC/DDD Index license evidence

restrictions are read broadly: forbids commercial use, forbids derivatives

- **Terms of use page**: Statement found in snapshot s02 (page) — "Use of all or parts of the material requires reference to the WHO Collaborating Centre for Drug Statistics Methodology. Copying and distribution for commercial purposes is not allowed. Changing or manipulating the material is not allowed." — https://atcddd.fhi.no/copyright_disclaimer/ (2026-11-12; Page opened)
- **Terms of use page**: Statement found in snapshot s02 (page) — "� Copyright" — https://atcddd.fhi.no/copyright_disclaimer/ (2026-11-12; Page opened)
- **Website footer**: Statement found in snapshot s01 (page) — "Copyright/Disclaimer" — https://atcddd.fhi.no/ (2026-11-12; Page opened)

## Source and lineage

—

## Known issues with ATC/DDD Index

- The publisher cannot guarantee the accuracy, completeness or interpretation of the information.

## Preflight

Not run (data not ingested).

## Downloading ATC/DDD Index and API access

Mdexa does not serve files. Original source:
- https://atcddd.fhi.no/
- https://atcddd.fhi.no/copyright_disclaimer/

## Citing ATC/DDD Index

No recommended citation text.

## Machine-readable

- JSON: https://mdexa.com/datasets/atc-ddd.json
- 2026-11-14 Listed 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: redistribution: [甲类] 原文涉及分发：为商业目的的分发被禁止，非商业分发未提及；该项被条款涉及且受限，应为 conditional，不是 unstated。

## Continue in this database

This record is one of 109 processed and verified records (datasets, data resources and open models). To find others, call `https://mcp.mdexa.com/v1/datasets?q=<words>` or connect the MCP server at `https://mcp.mdexa.com/mcp`; no key is needed for 20 calls per minute. Rows are under 1 KB; an empty result means "not listed". For a list of items, one batch check (free account) returns a report. Guide: /agents.md. Similar records: RxNorm (https://mdexa.com/datasets/rxnorm/); DrugCentral (https://mdexa.com/datasets/drugcentral/); openFDA (https://mdexa.com/datasets/openfda/).