---
id: "us_rxcui"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["medical"]
country: ["US"]
langs: ["common"]
quality: 90
url: "http://registry.apicrafter.io/datatype/us_rxcui"
---

# RxNorm concept unique identifier (RXCUI) (`us_rxcui`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Numeric identifier of a concept in RxNorm, the US National Library of Medicine vocabulary of normalized names for clinical drugs on the US market. Ingredients, brand names and clinical drugs each have their own RXCUI.

- Personal data (PII): no
- Categories: Medical/pharma identifiers (medical)
- Countries: United States (US)
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^\d{1,7}$
```

## Examples

- `1191` — Aspirin
- `6448` — Lithium
- `RX1191` (invalid example) — An RXCUI has no letter prefix

## Mappings

- bioregistry: `rxnorm`
- schema_org: `rxcui`
- wikidata: `P3345`

## Translations

- ru: Идентификатор понятия RxNorm (RXCUI): Числовой идентификатор понятия в словаре лекарственных средств RxNorm Национальной медицинской библиотеки США.

## Sources

- wikipedia: <https://en.wikipedia.org/wiki/RxNorm>
- wikidata: <https://www.wikidata.org/wiki/Property:P3345>
- schema.org: <https://schema.org/rxcui>
- doc: <https://www.nlm.nih.gov/research/umls/rxnorm/index.html>

## Quality

Score 90/100. Missing: detector coverage.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/us_rxcui.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/US/medical/us_rxcui.yaml>