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ICD-10-CM diagnosis codes fy2027

First release we loaded: 98,403 records. Effective 2026-10-01; published 2026-10-24, 0 h after the source.

Changed records

The first release we loaded: every record is new, so there is no change list.

Records are keyed as the API keys them (codes without the dot). JSON: GET /v1/changes?dataset=icd10cm&version=fy2027 (Builder plan and up).