RxMap/Use cases
Medicaid State Drug Utilization Data

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.

The data problem

NDCs describe products, not comparable drugs

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.

Verified example

A reusable crosswalk for SDUD analysis

Download enriched Excel
ndc_codeIN_ingredientSCD_semantic_clinical_drugStrength
00093-1048-01MetforminMetformin hydrochloride 500 MG Oral Tablet500 MG
00071-0155-23AtorvastatinAtorvastatin 10 MG Oral Tablet10 MG
00054-8174-25DexamethasoneDexamethasone 1 MG Oral Tablet1 MG

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.

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