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The rules say that plans must pay for a medical service or item if regular Medicare would pay for it in this case. 
You can find this rule at 42 Code of Federal Regulations (CFR) Section 422.101. 
 
The rules say continuous subcutaneous insulin infusion (CSII) and related drugs/supplies are covered as 
medically reasonable and necessary in the home setting for the treatment of diabetic patients who: (1) either 
meet the updated fasting C-Peptide testing requirement, or, are beta cell autoantibody positive; and, (2) satisfy 
the remaining criteria for insulin pump therapy as described below. Patients must meet either Criterion A or B 
as follows: 
 
Criterion A: The patient has completed a comprehensive diabetes education program, and has been on a 
program of multiple daily injections of insulin (i.e., at least 3 injections per day), with frequent self-adjustments 
of insulin doses for at least 6 months prior to initiation of the insulin pump, and has documented frequency of 
glucose self-testing an average of at least 4 times per day during the 2 months prior to initiation of the insulin 
pump, and meets one or more of the following criteria while on the multiple daily injection regimen: 
 
 Glycosylated hemoglobin level (HbAlc) greater than 7.0%; 
 History of recurring hypoglycemia; 
 Wide fluctuations in blood glucose before mealtime; 
 Dawn phenomenon with fasting blood sugars frequently exceeding 200 mg/dl; or, 
 History of severe glycemic excursions. 
 
Criterion B: The patient with diabetes has been on a pump prior to enrollment in Medicare and has documented 
frequency of glucose self-testing an average of at least 4 times per day during the month prior to Medicare 
enrollment. 
 
The rules state that for the requested insulin pump to be covered, the patient with diabetes must be 
insulinopenic per the updated fasting C-peptide testing requirement, or, as an alternative, must be beta cell 
autoantibody positive. 
 
Updated fasting C-peptide testing requirement: 
 
1. Insulinopenia is defined as a fasting C-peptide level that is less than or equal to 110% of the lower limit of normal of the laboratory's measurement method. 
2. For patients with renal insufficiency and creatinine clearance (actual or calculated from age, gender, weight, 
and serum creatinine) less than or equal to 50 ml/minute, insulinopenia is defined as a fasting C-peptide level 
that is less than or equal to 200% of the lower limit of normal of the laboratory's measurement method. 
3. Fasting C-peptide levels will only be considered valid with a concurrently obtained fasting glucose less than 
or equal to 225 mg/dL. 
4. Levels only need to be documented once in the medical records. 
 
Continued coverage of the insulin pump would require that the patient be seen and evaluated by the treating 
physician at least every 3 months. 
 
You can find more information in Centers for Medicare and Medicaid Services, Internet Only Manual, 
Publication 100-03, National Coverage Determination (NCD): Infusion Pumps (280.14). 
 
If you want to read these Medicare rules, you can go to this website www.medicareappeal.com. 
 
The Plan contract says that the Plan covers items and services in accordance with Medicare rules.