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WAYBACK COVERAGE MATRIX

96 cells (12 treatments × 8 payers) probed for archival viability via CDX with distinct-digest collapse, 2020-01-01 → 2025-12-31. Viable = ≥3 distinct calendar years. Determines what's reachable for cross-payer temporal corpus build.

96 CELLS 31 VIABLE ANTHEM/BSCA 0

01 Summary

Viable Cells

31 / 96

32% — ≥3 distinct years

Aetna

10 / 12

Best documented. PHP/IOP only gaps.

Magellan

8 / 12

Single MCG PDF — uniform across cells

Anthem

0 / 12

CDN paths never crawled. Significant gap.

BSCA

0 / 12

Wayback indexing essentially absent

Probe Date

2026-05-20

CDX, statuscode=200

02 Coverage Matrix (Treatment × Payer)

Cell shows distinct-years count. Green = viable (≥3 years). Yellow = 1–2 years (sub-viable). Gray = no captures / no URL.

Loading matrix…

03 Treatment Coverage Ranking

Treatment	Viable / 8	Note
TMS	5	Aetna, Cigna, UHC, Premera, Magellan — strongest
ABA	5	Heavily documented via state autism mandates
Esketamine	5	Strong corpus given drug only launched 2019
ECT	3	Aetna + Magellan dominant
Ketamine	3	Aetna, UHC (shared esketamine doc), Magellan
RTC	3	Aetna + Magellan MCG
Eating disorder residential	2	Aetna CPB 0511 + Magellan MCG
Psych testing	2	Aetna + Magellan
MAT / SUD	2	Aetna XR-bup CPB + Magellan
PHP, IOP	1 each	Magellan only. Most payers fold into MNC/LOCG.
LAI antipsychotic	1	Aetna CPB 0020 (generic injectables) only

04 Structural Gaps

All 12 Anthem cells. anthem.com/dam/medpolicies/... paths return zero captures. Either dynamically gated or never crawled.
All 12 BSCA cells. The dam/bsca PDF pattern is barely indexed.
11 of 12 FEP cells. FEP relies on annual brochure rather than per-policy PDFs.
Level-of-care (RTC/PHP/IOP) at every payer except Magellan and Aetna. Most payers don't publish standalone LOC policies — they license MCG, InterQual, or use Optum LOCG.
LAI antipsychotics. No payer publishes a dedicated stable URL. Almost always rolled into broader formulary or PA criteria docs.

Generated 2026-05-20 · Source: stratum-corpus-data · analyses/wayback_coverage_*

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