# District of Columbia Medicaid monthly enrollment report history

`medicare_silver.dc_medicaid_enrollment_history_observation` · State programs · status live · 53,274 rows

Source-native DHCF Medicaid and Alliance monthly report observations from 121 known official PDFs as of October 24, 2026. Later reports can revise earlier months; a preferred-report flag marks the source selection without discarding older rows.

**Grain.** One official report edition × observation month × printed section × plan/program row; all report revisions retained.

| column | type | meaning |
|---|---|---|
| state_code | string |  |
| occurrence_id | string |  |
| document_sha256 | string |  |
| publication_date | date |  |
| report_period | date |  |
| observation_period | date |  |
| measurement_basis | string |  |
| section_name_raw | string |  |
| dimension_1_raw | string |  |
| plan_name_raw | string |  |
| source_plan_identity_id | string |  |
| program_class | string |  |
| row_type | string |  |
| row_role | string |  |
| reported_value | bigint |  |
| value_status | string |  |
| evidence_source_url | string |  |
| evidence_content_sha256 | string |  |
| source_locator | string |  |
| semantic_row_sha256 | string |  |
| period_revision_rank | int |  |
| is_preferred_period_snapshot | boolean |  |
| 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 |  |
| source_id | string |  |
| is_current | boolean |  |
| bronze_object_key | string |  |
| s3_version_id | string |  |
| vintage_tag | string |  |
| drug_source_version_id | string |  |

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