# MA HEDIS contract service area, documented names

`medicare_semantic.vw_hedis_service_area_v2` · Medicare Advantage, Part D, Medicaid · status live · 2,453,366 rows

The counties in each MA contract's service area per HEDIS report year, from the HEDIS PUF service_area sheet, under CMS's documented names: ssa_state_county_code (SA-0030), fips_state_county_code (SA-0040, ANSI/FIPS INCITS 31-2009), fips_state_code (first two digits of SA-0040), state_code (SA-0050), county_name_raw (SA-0060), eghp_only_county (SA-0070: 1 = the county serves only Employer Group Health Plan members).

**Grain.** One row per (report_year, contract_id, ssa_state_county_code, fips_state_county_code, eghp_only_county): 0 duplicate groups in every year (Athena 2e4d240e, ccba7dde). 2,453,366 rows 2019, 2021-2025.

| column | type | meaning |
|---|---|---|
| contract_id | string |  |
| ssa_state_county_code | string |  |
| fips_state_county_code | string |  |
| fips_state_code | string |  |
| state_code | string |  |
| county_name_raw | string |  |
| eghp_only_county | int |  |
| report_year | int |  |
| observed_period | date |  |
| asserted_at | date |  |
| effective_period_start | date |  |
| effective_period_end | date |  |
| cms_vintage_sequence | int |  |
| parse_revision | int |  |
| parser_artifact_hash | string |  |
| source_url | string |  |
| sha256_content_hash | string |  |

Query it: `query_substrate` with `SELECT ... FROM medicare_semantic.vw_hedis_service_area_v2 WHERE ... LIMIT 100`; read `describe_data_source("medicare_semantic.vw_hedis_service_area_v2")` first.