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Diabetes Glossary

Certificate of Medical Necessity

Certificate of Medical Necessity (CMN) A certificate required by centers for Medicare and Medicaid services to substantiate the medical necessity of an item of durable medical equipment furnished to a Medicare beneficiary. It is essentially a detailed prescription.


The publisher is not responsible (as a matter of product liability, negligence or otherwise) for any injury resulting from any material contained herein. This publication contains information relating to general principles of medical care which should not be construed as specific instructions for individual patients. Manufacturers’ product information and package inserts should be reviewed for current information, including contraindications, dosages and precautions.