https://www.cms.gov/data-research/cms-information-technology/hipaa-eligibility-transaction-system/hets-documentation-library/hets2025-1-hets-270/271-release-summary
HETS2025-1 HETS 270/271 Release Summary | CMS
release summaryhetscms
https://www.cms.gov/data-research/cms-information-technology/hipaa-eligibility-transaction-system/hets-documentation-library/hets2025-4-hets-270-271-release-summary
HETS2025-4 HETS 270/271 Release Summary | CMS
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https://www.cms.gov/data-research/cms-information-technology/hipaa-eligibility-transaction-system/hets-documentation-library/hets2025-2-hets-270/271-release-summary
HETS2025-2 HETS 270/271 Release Summary | CMS
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