Definitions of medical necessity status
This document defines the insurer's meanings of 'Medically Necessary', 'Investigational', and 'Not Medically Necessary' and the criteria used to categorize services for coverage determinations. It affects providers and reviewers applying Blue Cross Blue Shield of Massachusetts policy standards.
No material clinical or coverage changes in this revision.
Coverage Determination Criteria
Definitions used for coverage determinations
Coverage determinations follow these definitions:
Non-covered
Services that do not meet the Medical Technology Assessment Guidelines in Blue Cross Blue Shield of Massachusetts Medical Policy #350 are excluded from coverage. When a service fails to satisfy those guidelines it will be classified as Investigational or Not Medically Necessary depending on whether it also fails the definitions for generally accepted standards of medical practice and clinical appropriateness.
Services that are provided primarily for convenience or that are more costly than an alternative service or sequence of services at least as likely to produce equivalent therapeutic or diagnostic results are considered Not Medically Necessary and are non‑covered. Examples include interventions chosen for the convenience of the patient, clinician, or other provider, or use of a higher‑cost option when an equivalent lower‑cost option exists.
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