Carbon dioxide / helium / hydrogen / nitrogen / oxygen Gas for Inhalation
RxNorm 393074

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 393074 represents a standardized clinical drug concept used for cross-system interoperability. This concept aggregates multiple Atom IDs (AUIs), which are specific naming variations and synonyms used across pharmaceutical databases to ensure accurate medication mapping for: carbon dioxide / helium / hydrogen / nitrogen / oxygen Gas for Inhalation.

The following semantic concepts and normalized strings are associated with this clinical entity:

SCDF
Carbon dioxide / helium / hydrogen / nitrogen / oxygen Gas for Inhalation
AUI:12258915
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This clinical crossover tool is designed for healthcare professionals, pharmacists, and data analysts to safely compare substitute products and manage medication interoperability.

SCDF

Semantic Clinical Drug Form (SCDF):
Carbon dioxide / helium / hydrogen / nitrogen / oxygen Gas for Inhalation
(Atom ID: 12258915)

Clinical Status & Identity

Prescribable Status
NO (Reference)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
carbon dioxide / helium / hydrogen / nitrogen / oxygen Gas for Inhalation
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
O
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
393074
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12258915
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCDF
Semantic Clinical Drug Form (Ingredient + Dose Form)
Source Code
393074
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.

Technical Attributes & Logic

RXN OBSOLETED
04/30/2020
Date the RxNorm atom became obsolete