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stack/data/cms
kert e16984258f
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data: ASP ingestion — strict skin sub filter, full provenance, 86 canonical URLs
Rewrite ingest_asp.py with academic rigor:
- Strict filter to skin_substitute_hcpcs.csv code universe (NO regex)
- 28 non-skin-sub Q4 codes excluded (Q4054 darbepoetin, Q4055 epoetin,
  Q4074-Q4099 ESRD drugs) that were incorrectly included before
- source_url and source_file columns on every output row (100% provenance)
- Documented column mapping rationale across 20 years of CMS format drift
- DuckDB path corrected to data/aco.duckdb

Result: 1,974 observations, 68 quarters (2009-Q1–2025-Q4), 169 codes
Canonical source URLs: data/cms/asp_source_urls.csv (86 CMS.gov URLs)

Refs #233
2026-03-25 09:44:18 -04:00
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