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Blue Cross & Blue Shield of MississippiAll Plans · Coverage · Medical Policy · Endocrinology, PediatricsMedium impact

Automated Insulin Delivery Systems

Effective date
Not stated in the notice
Identified
Jun 20, 2026

Summary

An FDA-cleared or approved automated insulin delivery system with a low glucose suspend feature may be considered medically necessary for type 1 diabetes in individuals age 6 years and older with HbA1c between 5.8% and 10.0%, more than 6 months of insulin pump therapy, and at least 2 documented nocturnal hypoglycemic events in a 2-week period. A hybrid closed-loop system may be considered medically necessary for type 1 diabetes in individuals over age 6 who meet the same HbA1c and pump criteria, or in ages 2 to 6 with type 1 diabetes for 3 months or more, pump therapy for more than 3 months, HbA1c below 10.0% and a total daily dose of at least 8 units; a closed-loop system may be considered for individuals age 6 and older with type 1 diabetes for 12 months or more who have used insulin for at least 12 months. For type 2 diabetes, a hybrid closed-loop system may be considered medically necessary in individuals age 18 and older diagnosed for at least 12 months who take at least 3 insulin injections daily or use an insulin infusion pump for at least 3 months and have HbA1c of 7% or higher or significant hypoglycemia, and use for individuals who do not meet these criteria or for systems not cleared or approved by the FDA is investigational.

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What to do

Action · 6 steps
01Billing team: Bill the HCPCS codes S1034, S1035, S1036, S1037, A4226 and E0787 for these systems only when the record documents that the individual meets the criteria for the system type.
02For type 1 diabetes, document age, HbA1c, insulin pump duration, and at least 2 documented nocturnal hypoglycemic events in a 2-week period for low glucose suspend and hybrid closed-loop systems, or the age, diagnosis duration and insulin regimen criteria for closed-loop systems.
03For type 2 diabetes, document age 18 or older, diagnosis for at least 12 months, multiple daily injections or an insulin infusion pump for at least 3 months, and HbA1c of 7% or higher or significant hypoglycemia.
04Use the type 1 diabetes ICD-10 codes listed in the code reference, and for type 2 diabetes use E11.00 - E11.9 with the additional code Z79.4 to identify insulin use.
05Services for individuals who do not meet these criteria, and systems not cleared or approved by the FDA, are investigational under this policy.
06BCBSMS makes no payment for services not documented to be medically necessary.

Codes mentioned

A4226E0787S1034S1035S1036S1037E10.9E10.65E10.10E10.11E10.641E10.649E11.00E11.9Z79.4

Original notice

Automated Insulin Delivery Systems
bcbsms.com · Always check the source before changing claims.
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