NDC

Vocabulary_ID=9

The following describes the procedure to update the NDC vocabulary with the latest release of the source.

The load process is a complete refresh of data. All new vocabulary entieties will be added. All vocabulary entities that do not exist in the latest files set will be marked as deprecated.

1.1 Scripts Transfer

All scripts and files listed at the bottom of this page should be transferred to specially created directory (eg /data/RxNorm).

Script Name	Description
09_create_schema.sql	Create prestage-stage schema with tables and indexes
09_load_to_prestage.sh	Load RxNorm row-data
09_transform_row_maps.sql	Convert and store in stage table SOURCE_TO_CONCEPT_MAP_STAGE
09_load_maps.sql	Load only new maps into SOURCE_TO_CONCEPT_MAP table, add invalid code information
09_load_to_prestage_ATC.ctl	FDB-ATC control file
09_load_to_prestage_ETC.ctl	FDB-ETC control file
09_load_to_prestage_NDC.ctl	FDB-NDC control file
09_load_to_prestage_FDA_NDC.ctl	FDA-NDC control file
09_load_to_prestage_FDA_PRO.ctl	FDA-Product control file

1.2 Download data from source

1.2.1 Download data from RxNorm source

The most current international release is located at the following URL: http://www.nlm.nih.gov/research/umls/rxnorm/docs/rxnormfiles.html

Historical archives located at: http://www.nlm.nih.gov/research/umls/rxnorm/docs/rxnormarchive.html

Note: Make sure you perform updates in chronological order. So, if you want to process a January and April release, execute the below steps for January, and after successful completion, for April.

Download the latest release file (e.g. RxNorm_full_07022012.zip)
Transfer downloaded zip file to /data/RxNorm directory.

Zip file suffix contains release date (e.g. 07022012=02-Jul-2012)
Latest production zip file is ~136MB in size

Note: For the rest of the document we will be referring to current schema as RXNORM_20120702 you would have to adjust this entry to correspond to current release date file

1.2.2 Download data from FDB source

The most current international release is located at the following URL: http://www.fdbhealth.com/

Download the latest release file (e.g.FDB_10252011.zip)

Transfer downloaded zip file to /data/RxNorm directory.

Zip file suffix contains release date (e.g. 07022012=02-Jul-2012)
Latest production zip file is ~2MB in size

1.2.3 Download data from FDA source

The most current international release is located at the following URL:

http://www.fda.gov/downloads/Drugs/DevelopmentApprovalProcess/UCM070838.zip

Download the latest release file (e.g.UCM070838.zip)

Transfer downloaded zip file to /data/RxNorm directory.
Latest production zip file is ~6MB in size

1.3 Build Database Schema

All tables will be located in the schema RxNorm_<DateOfSourceFile> as following: RXNORM_20130805
The following steps will create a schema and will grant to a schema owner appropriate permissions.

In addition to the schema, it will create tables to load raw data: RXNATOMARCHIVE,RXNCONSO,RXNCUI,RXNCUICHANGES,RXNDOC,RXNREL,RXNSAB,RXNSAT and RXNSTY as well as staging tables:

CONCEPT_STAGE,

CONCEPT_ANCESTOR_STAGE,

CONCEPT_RELATIONSHIP_STAGE,

SOURCE_TO_CONCEPT_MAP_STAGE

$ sqlplus System/<SystemPass>@DEV_VOCAB @09_create_schema.sql <RXNORM_Schema> <Pass_RXNORM_Schema>

Format of RXNORM_Schema should be RXNORM_YYYYMMDD (e.g. RXNORM_20130805)

1.4 Raw data load into Oracle tables

1.4.1 Extract files from the zip archive into the current directory

$ unzip -u RxNorm_full_07022012.zip -d rxnorm_20120702

$ unzip ndc.zip

       1.4.2 Verify that the following 7 files have been created:

           RXNCONSO.RRF    (Latest file size ~96MB)

           RXNSAT.RRF    (Latest file size ~385MB)

              RATCGC0_ATC_GCNSEQNO_LINK.rrf (Latest file size ~496KB)
           ( Search it in FDB source eg \NDDF_PLU\NDDF_PLU\NDDF Plus DB\NDDF Descriptive and Pricing\NDDF BASICS 3.0\Miscellaneous Therapeutic Class\ )

           RETCGC0_ETC_GCNSEQNO.rrf (Latest file size ~612KB) ( Search it in FDB source )

           RNDC14_NDC_MSTR.rrf (Latest file size ~49MB) ( Search it in FDB source )

            package.txt    (Latest file size ~9MB)

           product.txt    (Latest file size ~22MB)


       1.4.3    Load raw data into Oracle.

1.4.3.1 Load RxNorm raw data into Oracle.
           This sqlldr process will run for about 2min.
       $ 09_load_to_prestage.sh /data/RxNorm/rxnorm_20120702 <RXNORM_Schema>/<Pass_RXNORM_Schema>

1.4.3.2    Load FDB raw data into Oracle.
    Each sqlldr process will run for about 1min.

        $ sqlldr RxNorm_20120131/myPass@DEV_VOCAB control=09_load_to_prestage_ATC.ctl

       $ sqlldr RxNorm_20120131/myPass@DEV_VOCAB control=09_load_to_prestage_ETC.ctl
       $ sqlldr RxNorm_20120131/myPass@DEV_VOCAB control=09_load_to_prestage_NDC.ctl

1.4.3.3    Load FDA raw data into Oracle.
    Each sqlldr process will run for about 1min.

        $ sqlldr RxNorm_20120131/myPass@DEV_VOCAB control=09_load_to_prestage_FDA_NDC.ctl

       $ sqlldr RxNorm_20120131/myPass@DEV_VOCAB control=09_load_to_prestage_FDA_PRO.ctl

1.4.3.4 Verify that files with extension .bad are empty, no records have been rejected.

1.4.3.5 Copy data and intermediate files to backup area. In this step, downloaded files will be archived to preserve source of the data. Discuss a location of backup area with your system administrator.

       $ cp -Ru /data/RxNorm/*.zip /data/backup_area ; cp -Ru /data/RxNorm/*.log /data/backup_area

1.4.3.6 Verify that number of records loaded is approximate equivalent to prior stage load

$ sqlplus RXNORM_20120702/myPass@DEV_VOCAB

Execute the following SQL commands:

SELECT count(*) FROM RXNCONSO;

Current production row count is: 1,002,967 Rows

SELECT count(*) FROM RXNSAT;

Current production row count is:     6,693,748 Rows

     SELECT count(*) FROM RATCGC0_ATC_GCNSEQNO_LINK;
Current production row count is:     21,094 Rows

     SELECT count(*) FROM RETCGC0_ETC_GCNSEQNO;
Current production row count is:     26,863 Rows

     SELECT count(*) FROM RNDC14_NDC_MSTR;
Current production row count is:     133,796 Rows

SELECT count(*) FROM FDA_NDC_PACKAGES;

Current production row count is: 121,564 Rows

SELECT count(*) FROM FDA_NDC_PRODUCTS;

Current production row count is: 59,931 Rows

1.5 Loading Staging Tables from raw

1.5.1 Convert and store in staging table maps

Loaded from raw staged data RXNCONSO into the staged data SOURCE_TO_CONCEPT_MAP_STAGE

$ sqlplus RXNORM_20120702/myPass@DEV_VOCAB @09_transform_row_maps.sql

1.5.2 Verify that number of records loaded is equivalent to prior production load

In this step we will verify that number of active records in staging tables is valid prior to transfer data to historical DEV schema.

a. Number of Records in stage table

b. Number of records in DEV schema not deleted (active, prior load production)

c. How many records would be added to DEV schema table

d. How many active DEV records will be marked for deletion

In most cases number of records in stage (a) should be greater than number of active records in production (b)
In rare occasion that might not be the case. It is responsibility of the developer running the scripts to verify that that is the the valid.

$ sqlplus RXNORM_20120131/myPass@DEV_VOCAB

Execute the following SQL commands:

SELECT '- Num Rec in stage' AS scr, COUNT (8) cnt
FROM SOURCE_TO_CONCEPT_MAP_STAGE c
WHERE c.SOURCE_VOCABULARY_ID IN (09)
UNION ALL
SELECT '- Num Rec in DEV not deleted' AS scr, COUNT (8) cnt
FROM DEV.SOURCE_TO_CONCEPT_MAP d
WHERE     d.SOURCE_VOCABULARY_ID IN (09)
       AND D.TARGET_VOCABULARY_ID IN (08)
       AND NVL (d.INVALID_REASON, 'X') <> 'D'
UNION ALL
SELECT '- How many records would be new in DEV added' AS scr, COUNT (8) cnt
FROM SOURCE_TO_CONCEPT_MAP_STAGE c
WHERE c.SOURCE_VOCABULARY_ID IN (09) AND c.TARGET_VOCABULARY_ID IN (08)
       AND NOT EXISTS
                  (SELECT 1
                     FROM DEV.SOURCE_TO_CONCEPT_MAP d
                    WHERE     d.SOURCE_VOCABULARY_ID IN (09)
                          AND c.SOURCE_CODE = D.SOURCE_CODE
                          AND d.SOURCE_VOCABULARY_ID = c.SOURCE_VOCABULARY_ID
                          AND d.MAPPING_TYPE = c.MAPPING_TYPE
                          AND d.TARGET_CONCEPT_ID = c.TARGET_CONCEPT_ID
                          AND d.TARGET_VOCABULARY_ID = c.TARGET_VOCABULARY_ID)
UNION ALL
SELECT '- How many DEV active will be marked for deletion' AS scr,
       COUNT (8) cnt
FROM DEV.SOURCE_TO_CONCEPT_MAP d
WHERE     d.SOURCE_VOCABULARY_ID IN (09)
       AND D.TARGET_VOCABULARY_ID IN (08)
       AND NVL (d.INVALID_REASON, 'X') <> 'D'
       AND d.VALID_START_DATE <
              TO_DATE (
                 SUBSTR (USER, REGEXP_INSTR (USER, '_[[:digit:]]') + 1, 256),
                 'YYYYMMDD')
       AND NOT EXISTS
                  (SELECT 1
                     FROM SOURCE_TO_CONCEPT_MAP_STAGE c
                    WHERE     c.SOURCE_VOCABULARY_ID IN (09)
                          AND c.SOURCE_CODE = D.SOURCE_CODE
                          AND d.SOURCE_VOCABULARY_ID = c.SOURCE_VOCABULARY_ID
                          AND d.MAPPING_TYPE = c.MAPPING_TYPE
                          AND d.TARGET_CONCEPT_ID = c.TARGET_CONCEPT_ID
                          AND d.TARGET_VOCABULARY_ID = c.TARGET_VOCABULARY_ID)
       AND EXISTS
              (SELECT 1
                 FROM SOURCE_TO_CONCEPT_MAP_STAGE c
                WHERE     d.SOURCE_CODE = c.SOURCE_CODE
                      AND d.SOURCE_VOCABULARY_ID = c.SOURCE_VOCABULARY_ID
                      AND d.MAPPING_TYPE = c.MAPPING_TYPE
                      AND d.TARGET_VOCABULARY_ID = c.TARGET_VOCABULARY_ID);

Current Result:

- Num Rec in stage        314556

- Num Rec in DEV not deleted          457751

- How many records would be new in DEV added          2383

- How many DEV active will be marked for deletion 332

   1.5.3   Load new maps into DEV schema concept table,mark deprecated concepts as deleted. Valid start date, valid end date and invalid reason are left empty for now.
      Transfer records from SOURCE_TO_CONCEPT_MAP_STAGE to DEV.SOURCE_TO_CONCEPT_MAP table

   $ sqlplus RXNORM_20120702/myPass@DEV_VOCAB @09_load_maps.sql