Description

Get the National Drug Codes (NDCs) for the RxNorm concept identified by rxcui. The history parameter selects NDCs currently associated with the concept, NDCs ever associated with the concept, or NDCs ever associated with the concept or any obsolete concept remapped into it.

Currently associated NDCs are those NDCs present in the current version of RxNorm.

Past NDCs include all NDCs ever mentioned in any version of RxNorm, regardless of presence in the current version.

Scope

Current and Historical: concepts in current and previous RxNorm data sets

Parameters

All query parameters are case-insensitive.

Output structure

Results are available as either XML or JSON.

• The XML result has the root element rxnormdata. It is described in the XML Schema for the RxNorm API; the relevant element structure is summarized below. Elements that would be empty might be left out.

• The JSON result is an object {...}, analogous to the content of the XML rxnormdata. Fields that might occur multiple times in the XML are expressed as an array. Fields that would be empty might be null or left out. Numbers are expressed as strings.

Both XML and JSON results follow the same outline:

rxnormdata

Root element in XML, or anonymous object in JSON

historicalNdcConcept

historicalNdcTime (array)

One NDC's association to the RxNorm concept

status

"direct" = NDC is associated with the subject RxCUI. "indirect" = NDC was inherited through remapping

rxcui

RxCUI of concept to which the NDCs are or were directly associated

ndcTime (array)

NDC and period of association

ndc (array of 1)

National Drug Code (NDC) in CMS 11-digit format

startDate

the first RxNorm release where the NDC was active for this concept. Format is YYYYMM

endDate

the last RxNorm release where the NDC was active for this concept. Format is YYYYMM

See also

• getNDCProperties

• getNDCStatus

Example: NDCs for Zithromax 500 MG Injection (RxCUI=1668240) or inherited through remapping

XML: https://rxnav.nlm.nih.gov/REST/rxcui/1668240/allhistoricalndcs

JSON: https://rxnav.nlm.nih.gov/REST/rxcui/1668240/allhistoricalndcs.json

These NDCs includes NDCs associated with RxCUI=351772, which was remapped to the specified concept.

An XML result is shown below.

<rxnormdata>
    <historicalNdcConcept>
        <historicalNdcTime>
            <status>indirect</status>
            <rxcui>351772</rxcui>
            <ndcTime>
                <ndc>00069040001</ndc>
                <startDate>201401</startDate>
                <endDate>201510</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>00069040010</ndc>
                <startDate>201401</startDate>
                <endDate>201510</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>00069315014</ndc>
                <startDate>200706</startDate>
                <endDate>201510</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>00069315083</ndc>
                <startDate>200706</startDate>
                <endDate>201510</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>00069315084</ndc>
                <startDate>201304</startDate>
                <endDate>201510</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>54569468100</ndc>
                <startDate>200706</startDate>
                <endDate>201101</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>54868452700</ndc>
                <startDate>200810</startDate>
                <endDate>201510</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>55154271505</ndc>
                <startDate>200706</startDate>
                <endDate>201206</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>61947315000</ndc>
                <startDate>200708</startDate>
                <endDate>201206</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>61947315001</ndc>
                <startDate>200706</startDate>
                <endDate>201206</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>61947315003</ndc>
                <startDate>200706</startDate>
                <endDate>201206</endDate>
            </ndcTime>
        </historicalNdcTime>
        <historicalNdcTime>
            <status>direct</status>
            <rxcui>1668240</rxcui>
            <ndcTime>
                <ndc>00069040001</ndc>
                <startDate>201511</startDate>
                <endDate>202104</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>00069040010</ndc>
                <startDate>201511</startDate>
                <endDate>202104</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>00069315014</ndc>
                <startDate>201511</startDate>
                <endDate>202104</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>00069315083</ndc>
                <startDate>201511</startDate>
                <endDate>202104</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>00069315084</ndc>
                <startDate>201511</startDate>
                <endDate>202104</endDate>
            </ndcTime>
            <ndcTime>
                <ndc>54868452700</ndc>
                <startDate>201511</startDate>
                <endDate>201907</endDate>
            </ndcTime>
        </historicalNdcTime>
    </historicalNdcConcept>
</rxnormdata>