Eye Drops
RxNorm 4230

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 4230 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: Eye Drops.

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

ET
Eye Drops
AUI:128532
ET
Ophthalmic Drops
AUI:128536

This clinical crossover tool is designed for healthcare professionals, pharmacists, and data analysts to safely compare substitute products and manage medication interoperability.

ET

Dose Form Entry Term (ET):
Eye Drops
(Atom ID: 128532)

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
Eye Drops
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
4230
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
128532
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
ET
Dose Form Entry Term (Entry terms for dose forms (TTY=DF).)
Source Code
4230
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

ORIG CODE
U000013
Original code associated with this string
ORIG SOURCE
HL7
Original source associated with this string

ET

Dose Form Entry Term (ET):
Ophthalmic Drops
(Atom ID: 128536)

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
Ophthalmic Drops
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
4230
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
128536
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
ET
Dose Form Entry Term (Entry terms for dose forms (TTY=DF).)
Source Code
4230
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

ORIG CODE
HL7T010
Original code associated with this string
ORIG SOURCE
HL7
Original source associated with this string