{
  "format": "healthspanledger-research-codebook",
  "schemaVersion": 1,
  "dataset": {
    "id": "cms-nadac-acquisition",
    "name": "What a pharmacy pays for GLP-1 drugs, from CMS NADAC",
    "canonicalUrl": "https://healthspanledger.com/cost",
    "edition": "2026.08",
    "version": "68bddefe4742"
  },
  "columns": [
    {
      "name": "brand",
      "type": "string",
      "nullable": false,
      "description": "Reader-facing product or generic grouping used on the cost page."
    },
    {
      "name": "product_description_cms",
      "type": "string",
      "nullable": false,
      "description": "Product description exactly as CMS publishes it in NADAC."
    },
    {
      "name": "representative_ndc",
      "type": "string",
      "nullable": false,
      "description": "One National Drug Code representing rows that share the same acquisition figure."
    },
    {
      "name": "ndcs_sharing_this_figure",
      "type": "number",
      "nullable": false,
      "description": "Number of NDC rows reconciled into the published figure.",
      "unit": "NDCs"
    },
    {
      "name": "nadac_per_unit",
      "type": "number",
      "nullable": false,
      "description": "National Average Drug Acquisition Cost published by CMS for one pricing unit.",
      "unit": "US dollars per pricing unit"
    },
    {
      "name": "pricing_unit",
      "type": "string",
      "nullable": false,
      "description": "CMS unit to which the NADAC figure applies."
    },
    {
      "name": "units_per_package",
      "type": "number",
      "nullable": false,
      "description": "Number of CMS pricing units in the represented package.",
      "unit": "pricing units"
    },
    {
      "name": "cost_per_package",
      "type": "number",
      "nullable": true,
      "description": "Derived acquisition cost for one represented package.",
      "unit": "US dollars",
      "missingMeaning": "The source row does not support a package-level conversion."
    },
    {
      "name": "cost_per_month",
      "type": "number",
      "nullable": false,
      "description": "Derived acquisition cost for the stated 30-day use assumption.",
      "unit": "US dollars"
    },
    {
      "name": "month_covers",
      "type": "string",
      "nullable": false,
      "description": "Exact labeled-use assumption used to convert package cost into a 30-day figure."
    },
    {
      "name": "effective_date",
      "type": "string",
      "nullable": false,
      "description": "ISO date on which CMS says the NADAC figure took effect."
    },
    {
      "name": "weekly_file_as_of",
      "type": "string",
      "nullable": false,
      "description": "ISO date of the CMS weekly file from which the row was selected."
    },
    {
      "name": "carried_forward_not_resurveyed",
      "type": "boolean",
      "nullable": false,
      "description": "Whether CMS carried the value forward instead of obtaining a new survey response."
    },
    {
      "name": "cms_explanation_codes",
      "type": "string",
      "nullable": false,
      "description": "CMS explanation codes attached to the NADAC row, separated by commas."
    },
    {
      "name": "brand_or_generic",
      "type": "string",
      "nullable": false,
      "description": "CMS code distinguishing brand and generic rows."
    },
    {
      "name": "pharmacy_types_surveyed",
      "type": "string",
      "nullable": false,
      "description": "CMS codes for pharmacy types represented in the survey."
    }
  ]
}