CurrentHighmark Blueshield NenyPolicy N/A

Certificate of Medical Necessity for Insulin Pump — Coverage Criteria

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Form and criteria for documenting medical necessity for insulin pump coverage for Medicare Advantage members; used by providers to support coverage decisions. Affects providers requesting pump coverage and Medicare Advantage enrollees.

Policy Summary

PayerHighmark Blueshield Neny

PolicyCertificate of Medical Necessity for Insulin Pump — Coverage Criteria

Policy CodePolicy N/A

Change TypeNo material clinical or coverage changes

Effective DateN/A

Next Review DateN/A

Key ActionComplete and submit the Certificate of Medical Necessity with required labs, documentation, provider signature, and contact information.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

>=6 morequired duration (MDI)

>=3required injections/day

>=4/dayself-monitoring

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CurrentHighmark Blueshield NenyPolicy N/A

Certificate of Medical Necessity for Insulin Pump — Coverage Criteria

Customize your policy alerts

Sign up for all Highmark Blueshield Neny policy alerts

Know when Highmark Blueshield Neny releases new policies or updates existing guidance.

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Policy Summary

PayerHighmark Blueshield Neny

PolicyCertificate of Medical Necessity for Insulin Pump — Coverage Criteria

Policy CodePolicy N/A

Change TypeNo material clinical or coverage changes

Effective DateN/A

Next Review DateN/A

Key ActionComplete and submit the Certificate of Medical Necessity with required labs, documentation, provider signature, and contact information.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

>=6 morequired duration (MDI)

>=3required injections/day

>=4/dayself-monitoring

Coverage Criteria for Insulin Pump

Initial Insulin Pump Coverage Criteria

Covered when ALL of the following are met:

Core documentation: Typed office note, two laboratory tests (fasting C-peptide, fasting blood sugar) and creatinine clearance, completed CMN fields including beta‑cell autoantibody result, provider signature and contact information.

See CMN for required fields and lab values.

Prior therapy and education: Patient has completed a comprehensive diabetes education program and has been on a program of multiple daily injections with frequent self‑adjustment of insulin dose for at least 6 months prior to initiation of the insulin pump.>= 6 months; >= 3 injections/day

Documented average self‑monitoring of blood glucose >= 4 times per day during the 2 months prior to pump initiation.

Clinical indications: One or more of the following clinical reasons: HgbA1c > 7%, history of recurring hypoglycemia, wide fluctuation in blood glucose before mealtime, dawn phenomenon with fasting sugars frequently >200 mg/dL, history of severe glycemic excursions.

Select applicable reason(s) on the CMN.

Continuity for Enrollees Already Using Pump

Enrollment-related continuity

Prior pump use at Medicare enrollment: If the patient was using an external insulin infusion pump prior to Medicare enrollment, document average self‑monitoring of blood glucose >= 4 times per day during the month prior to enrollment.>= 4 tests/day during month prior to enrollment

CMN includes a specific question about prior pump use and requires documentation.

The Certificate of Medical Necessity (CMN) form does not list explicit exclusions. The CMN focuses on required documentation items such as a typed office note and copies of laboratory tests, together with clinical reasons for pump therapy, but it does not enumerate conditions that would automatically exclude a member from coverage.

Although the CMN does not state specific “not medically necessary” scenarios, failure to provide the required documentation or to meet the form’s specified thresholds effectively implies non-coverage. Examples include missing the typed office note or the required laboratory test copies, or not documenting the prior-therapy and self-monitoring minimums (see clinical thresholds on the CMN).

Key Clinical Thresholds and Coding-Adjacent Definitions

inv-05: Self-monitoring frequency — average of at least 4 times per day

RequirementDocumented average of at least 4 glucose self‑monitoring tests per day during the observation period.

ScopeApplies to the 2 months prior to initiation of the insulin pump for initial coverage; for continuity at Medicare enrollment it applies to the month prior to enrollment.

CMN fieldQuestion on CMN requests documented frequency of glucose self‑testing (average >=4 times/day).

inv-06: Duration of prior MDI therapy — at least 6 months

RequirementPatient must have been on multiple daily injections with frequent self‑adjustment for at least 6 months prior to initiation of the insulin pump.

Duration detail

Provider Submission and Documentation Requirements

Documentation Required

CMN submission requirement

Complete and submit the Certificate of Medical Necessity (CMN) for insulin pump with required laboratory values and supporting documentation. Ensure the CMN includes fasting C‑peptide level, fasting blood sugar (mg/dL), and actual or calculated creatinine clearance (mL/min). Attach copies of the two required laboratory tests performed at the same blood draw and indicate the laboratory lower limit of normal for fasting C‑peptide.

CMN must show fasting C‑peptide, fasting blood glucose (mg/dL), and creatinine clearance (mL/min)
Attach copies of 2 laboratory tests (performed at the same blood draw) and note lab lower limit of normal for fasting C‑peptide
Indicate if Beta cell autoantibody test was positive or negative

Step Therapy

Prior conservative therapy requirement

Before initiating an insulin pump, document that the patient completed a comprehensive diabetes education program and has been on multiple daily injections (MDI) — at least 3 injections per day — with frequent self‑adjustments of insulin dose for a minimum of 6 months prior to pump initiation. Document average self‑monitoring of blood glucose frequency of at least 4 times per day during the 2 months prior to pump start. Also document one or more qualifying indications (e.g., HbA1c > 7%, recurrent hypoglycemia, wide glycemic variability, dawn phenomenon, or severe glycemic excursions).

Background and Clinical Context

Insulin pump therapy is requested for patients with diabetes who meet one or more clinical indications listed on the CMN, including HgbA1c > 7%, a history of recurring hypoglycemia, wide pre‑meal glucose fluctuations, the dawn phenomenon with fasting sugars frequently > 200 mg/dL, or history of severe glycemic excursions. The form also asks whether the patient was using an external insulin infusion pump prior to Medicare enrollment and requests documentation of frequent self‑monitoring (an average of at least 4 tests per day during the month prior to enrollment), along with a typed office note and copies of two laboratory tests to establish medical necessity.

Definitions and CMN Fields

inv-14: Positive Beta Autoantibody Test — CMN binary field indicating presence/absence

DefinitionBinary CMN field asking whether the patient had a Positive Beta Autoantibody Test (Yes/No).

PurposeUsed to support diagnosis of type 1 diabetes by indicating presence or absence of beta‑cell autoantibodies.

DocumentationCMN includes a specific question: "Did your patient have a Positive Beta Autoantibody Test? Y/N".

inv-15: Frequent self-testing — documented average of at least 4 tests/day

RequirementDocumented average of at least 4 glucose self‑monitoring tests per day (frequent self‑testing).

Observation periodFor initial pump initiation: average >=4 tests/day during the 2 months prior to initiation; for continuity at Medicare enrollment: average >=4 tests/day during the month prior to enrollment.

Policy Summary

PayerHighmark Blueshield Neny

PolicyCertificate of Medical Necessity for Insulin Pump — Coverage Criteria

Policy CodePolicy N/A

Change TypeNo material clinical or coverage changes

Effective DateN/A

Next Review DateN/A

Key ActionComplete and submit the Certificate of Medical Necessity with required labs, documentation, provider signature, and contact information.

SourceLink

On This Page

Specified as "at least 6 months to initiation of the insulin pump" on the CMN.

DocumentationCMN asks provider to confirm completion of diabetes education and duration of prior MDI therapy.

inv-07: Number of injections per day — at least 3 injections per day

RequirementPatient must have been on a program of multiple daily injections with at least 3 injections per day prior to pump initiation.

CMN wordingCMN specifies "at least 3 injections per day" as part of prior therapy requirement.

Relation to educationRequirement coupled with completion of a comprehensive diabetes education program and frequent self‑adjustment of insulin dose.

inv-08: HgbA1c threshold — greater than 7%

ThresholdGlycosylated hemoglobin (HgbA1c) greater than 7% is listed as a selectable clinical criterion on the CMN.

ContextHgbA1c >7% is one of several clinical indications that may support pump initiation (others include recurring hypoglycemia, wide fluctuations, dawn phenomenon).

CMN selectionCMN instructs to circle applicable clinical reasons including HgbAlc >7%.

Complete diabetes education program documented
MDI regimen: >=3 injections/day for >=6 months prior to pump initiation
Self‑monitoring: average >=4 glucose checks/day during the 2 months prior to pump initiation
List qualifying clinical criteria (circle all that apply): HbA1c > 7%, recurrent hypoglycemia, wide premeal glucose fluctuations, dawn phenomenon, severe glycemic excursions

Documentation Required

Required documentation

Provide a typed office note with pertinent clinical information, the completed CMN with all required fields, and two laboratory test reports. Include documentation of Beta autoantibody status, the patient's documented frequency of glucose self‑testing, and any additional clinical rationale. Sign and date the CMN (physician signature; stamps not acceptable).

Typed office note detailing clinical history and justification
Completed CMN with all fields (including fasting C‑peptide value and lab lower limit of normal)
Two laboratory test copies (same blood draw) attached
Document Beta autoantibody test result (Y/N)
Document frequency of glucose self‑testing and duration of MDI

Denial Risk

Documentation‑dependent denial risk

Missing or incomplete documentation (e.g., incomplete CMN fields, absent fasting C‑peptide, missing lab reports, no documentation of prior MDI/education or insufficient glucose monitoring frequency) may result in denial of the request. Ensure all required fields and attachments accompany the submission to avoid documentation‑dependent denials.

Risk of denial if CMN fields are incomplete or lab reports are not attached
Risk of denial if prior MDI regimen, diabetes education, or glucose testing frequency are not documented

CMN usageCMN requests documented frequency of glucose self‑testing and contains a question about prior pump use and testing during the month before enrollment.