Norelgestromin 220 mcg / ethinyl estradiol 20 mcg per Day Weekly Transdermal System
RxNorm 2749430

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 2749430 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: norelgestromin 220 mcg / ethinyl estradiol 20 mcg per Day Weekly Transdermal System.

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

SCD
168 HR ethinyl estradiol 0.000833 mg/HR / norelgestromin 0.00917 mg/HR Transdermal System
Primary clinical definition
AUI:13079095
View
SY
Ethinyl estradiol 20 mcg / norelgestromin 220 mcg per 24HR 7 Day Transdermal Patch
AUI:13079106
View
PSN
Norelgestromin 220 mcg / ethinyl estradiol 20 mcg per Day Weekly Transdermal System
AUI:13079108
View
SY
Norelgestromin 220 mcg / ethinyl estradiol 20 mcg per Day Weekly Transdermal System
AUI:13079107
View

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

SCDPrescribable

Semantic Clinical Drug (SCD):
168 HR ethinyl estradiol 0.000833 mg/HR / norelgestromin 0.00917 mg/HR Transdermal System
(Atom ID: 13079095)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
168 HR ethinyl estradiol 0.000833 MG/HR / norelgestromin 0.00917 MG/HR Transdermal System
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)
2749430
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
13079095
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCD
Semantic Clinical Drug (Ingredient + Strength + Dose Form)
Source Code
2749430
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_260908F
The specific version of the vocabulary provided by the source.
Update Date
September 08, 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 AI
{2749428} 4124
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{2749429} 326374
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{2749428} 4124
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{2749429} 326374
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AVAILABLE STRENGTH
0.000833 MG/HR / 0.00917 MG/HR
Available drug strengths listed in the order of ingredients from the drug
RXN BOSS FROM
{2749428} AI
Source of BOSS as either from the active ingredient (AI) or the active moiety (AM) preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{2749429} AI
Source of BOSS as either from the active ingredient (AI) or the active moiety (AM) preceded by RXCUI of SCDC responsible for value
RXN HUMAN DRUG
US
Drug available for use in Humans
RXN QUANTITY
168 HR
Normal Form quantity factor
SYPrescribable

Synonym (SY):
Ethinyl estradiol 20 mcg / norelgestromin 220 mcg per 24HR 7 Day Transdermal Patch
(Atom ID: 13079106)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
ethinyl estradiol 20 MCG / norelgestromin 220 MCG per 24HR 7 Day Transdermal Patch
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)
2749430
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
13079106
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
2749430
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_260908F
The specific version of the vocabulary provided by the source.
Update Date
September 08, 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.
PSNPrescribable

Prescribable Name (PSN):
Norelgestromin 220 mcg / ethinyl estradiol 20 mcg per Day Weekly Transdermal System
(Atom ID: 13079108)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
norelgestromin 220 MCG / ethinyl estradiol 20 MCG per Day Weekly Transdermal System
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)
2749430
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
13079108
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
PSN
Prescribable Name (Synonym of another TTY, given for clarity and for display purposes in electronic prescribing applications. Only one PSN per concept.)
Source Code
2749430
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_260908F
The specific version of the vocabulary provided by the source.
Update Date
September 08, 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.
SYPrescribable

Synonym (SY):
Norelgestromin 220 mcg / ethinyl estradiol 20 mcg per Day Weekly Transdermal System
(Atom ID: 13079107)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
norelgestromin 220 MCG / ethinyl estradiol 20 MCG per Day Weekly Transdermal System
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)
2749430
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
13079107
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
2749430
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_260908F
The specific version of the vocabulary provided by the source.
Update Date
September 08, 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.