Build an NDC-to-RxNorm crosswalk for Medicaid SDUD
Standardize Medicaid State Drug Utilization Data at the ingredient and clinical-drug level so quarterly utilization and reimbursement can be compared across product codes.
SDUD is reported by NDC, which is precise for billing but fragmented for analysis. Generic equivalents, package sizes, and labelers can appear as separate products even when they represent the same ingredient and strength.
The analyzable result
One standardized RxNorm layer
Add RxNorm ingredients, Semantic Clinical Drugs, strengths, and dose forms to SDUD rows. You can then summarize units reimbursed and payment amounts at a clinically meaningful level while preserving the source NDC.
Three steps
From source file to analysis-ready data
01
Prepare SDUD NDCs
Export the product or NDC field from the quarters and states included in your analysis.
02
Create the crosswalk
Upload the unique NDC list to RxMap and preview the resulting RxNorm enrichment before checkout.
03
Join to SDUD
Merge the downloaded workbook back on NDC and aggregate by ingredient, clinical drug, state, or quarter.
Example mappings were checked against the public NIH NLM RxNorm API. Always review unmatched and retired NDC values when analyzing historical quarters.
What this unlocks
Compare utilization across labelers for the same normalized drug.
Aggregate reimbursement by ingredient, strength, and dose form.
Reuse one unique-NDC crosswalk across a much larger SDUD table.
Retain source codes for quality checks and unmatched-code review.
Make your NDC file analysis-ready
Preview your mapped rows before payment. $0.001 per NDC, with a $1 minimum and $25 maximum per upload.