Home
Billing codes
E2100

PAYER POLICY CHANGES

E2100 Insurance Policy Changes

HCPCS E2100 is officially defined as "Blood glucose monitor with integrated voice synthesizer." HCPCS E2100 is referenced in 10 tracked payer policy changes from Mississippi Medicaid (DOM), Independence Blue Cross, and 5 other payers. For billers and coders, staying current on payer-specific coverage criteria, reimbursement rules, and prior-authorization requirements for HCPCS E2100 is critical to clean claim submission. Each entry below links to the full policy analysis with effective dates and action steps.

Mississippi Medicaid (DOM) · Effective Jan 1, 2027High impact
Biomarker Testing Coverage Implemented Effective July 1, 2026
Effective January 1, 2027, 15 specific diabetes supply HCPCS codes will transition from medical/DME billing to exclusive pharmacy billing on Mississippi Medicaid. A transition period runs October 1–December 31, 2026, during which the billing team must update systems to route these codes to pharmacy claims and ensure providers switch members to preferred products on the Diabetic Supply List (DSL). Eight HCPCS codes for insulin pump supplies and adjunctive CGM remain eligible for medical/DME billing and are unaffected.
Mississippi Medicaid (DOM) · Effective Jan 1, 2027High impact
Diabetic Supply Billing Notice
Mississippi Division of Medicaid will move fifteen diabetes supply HCPCS codes from the medical/DME benefit to exclusive pharmacy billing effective January 1, 2027, so these supplies will need NDC-based pharmacy claims. A transition period runs from October 1 through December 31, 2026, and the change is aimed at letting Medicaid collect manufacturer rebates. Eight other diabetes supply codes remain eligible for medical/DME billing.
Independence Blue Cross · Effective Oct 5, 2026High impact
MA00.002t, Continuous Glucose Monitors and Home Blood Glucose Monitors and Supplies
Independence Blue Cross updated MA00.002t to clarify coverage criteria and benefits for continuous glucose monitors (CGM) and home blood glucose monitor supplies, effective 10/05/2026. New HCPCS code E2103 was added to reimbursement edits Column I, and 19 additional HCPCS codes (E0607, E2100, E2101, A4233-A4236, A4244-A4247, A4250, A4253, A4255-A4259) were added to Column II. Policy language was revised for clarity regarding short-term and long-term CGM systems, preferred brands, and medical necessity criteria aligned with current Medicare guidelines.
UnitedHealthcare · Effective Apr 1, 2026High impact
Idaho Medicaid: New billing updates for diabetes equipment and supplies
Idaho Medicaid is moving billing for diabetes supplies and insulin administration equipment from medical benefit to pharmacy benefit effective April 1, 2026. During the transition period (Jan 1 - March 31, 2026), providers can bill either benefit, but after April 1st, all these codes must be billed through pharmacy or claims will be denied.
Independence Blue Cross · Effective Oct 5, 2026Medium impact
MA00.002t, Continuous Glucose Monitors and Home Blood Glucose Monitors and Supplies
Independence Blue Cross Medicare Advantage policy MA00.002t for continuous glucose monitors and supplies was updated effective 10/05/2026 with clarified policy language and revised criteria aligned with Medicare Guidelines. The policy added HCPCS code E2103 to reimbursement edit Column 1 and 18 additional HCPCS codes (E0607, E2100, E2101, A4233–A4259) to Column 2, affecting billing for long-term CGM supplies and equipment.
Texas Medicaid · Effective Jul 1, 2026Medium impact
Updates to Prior Authorization for Services and Clinician-Administered Drug Benefits for HTW/HTW Plus
Effective July 1, 2026, Texas Medicaid will require prior authorization for MRI and other imaging services for HTW/HTW Plus programs, while adding new clinician-administered drug benefits. Several existing drug codes will no longer be covered HTW benefits.
UnitedHealthcare · Effective Apr 1, 2026Medium impact
Idaho Medicaid: New billing updates for diabetes equipment and supplies
Idaho Medicaid is moving billing for diabetes equipment and supplies from medical benefits to pharmacy benefits effective April 1, 2026. This affects 17 HCPCS codes including blood glucose monitors, test strips, insulin syringes, and continuous glucose monitoring supplies.
Indiana Medicaid (IHCP) · Effective Jan 1, 2026Medium impact
BT2026117: IHCP to update rates for certain DME and medical supply items effective Jan. 1, 2026
Indiana Medicaid (IHCP) changed the rates for select durable medical equipment and medical supply HCPCS codes for dates of service on or after Jan. 1, 2026. For these items subject to the 21st Century Cures Act, the Medicaid allowed amount is the lowest non-zero 2026 Indiana Medicare DMEPOS Fee Schedule amount or competitive bidding single payment amount. Claims for the listed codes will be mass adjusted, as appropriate, and adjusted claims show on remittance advices beginning Aug. 12, 2026 with ICNs/Claim IDs that begin with 52.
Aetna · Identified Aug 14, 2026Medium impact
Diabetes Tests, Programs and Supplies (CPB 0070, reviewed 2026-02-20)
Aetna Clinical Policy Bulletin 0070 sets coverage rules for diabetes tests, programs and supplies. Long-term continuous glucose monitor (CGM) use is covered for members with diabetes on an intensive insulin regimen (multiple daily injections of 3 or more per day, or insulin pump therapy) who are under 18, are not meeting glycemic targets, are experiencing hypoglycemia (including hypoglycemia unawareness), or have glycogen storage disease. Jet injectors are covered as durable medical equipment only when the member or caregiver is physically unable to use a conventional needle-syringe, and the bulletin lists several devices and services as not covered or experimental, investigational or unproven, including the I-Port, hypoglycemic wristband alarms, home glycated hemoglobin monitors and the GlucoWatch Biographer.
Michigan Medicaid - MDHHS · Identified Jun 20, 2026Medium impact
MSA 19-27
Michigan Medicaid bulletin MSA 19-27, issued August 30, 2019, clarifies prior authorization and documentation requirements for genetic testing. Prior authorization is required for most genetic laboratory tests and must be obtained before the test is performed, using form MSA-6544-B. The bulletin also sets standards of coverage, documentation and billing rules for continuous glucose monitoring systems (CGMS) and their supplies, changes the Maternal Infant Health Program fee schedule to a 10% increase for services on or after October 1, 2019 (contingent on CMS approval of a State Plan Amendment), and lists existing codes whose coverage was made retroactive effective May 1, 2019 and June 1, 2019.

Watch E2100

Get one email when a payer policy names E2100, a payer adds or drops it from a prior auth list, or Medicare changes its NCCI pairs, unit limit, payment or coverage articles.

No account needed. We send a confirmation link first, and every email has a one-click stop link.

REFERENCE DATA

Payers with rules14

Payers requiring prior auth14

BCBS Illinois · Effective October 1, 2026
Prior authorization required
Utilization Management Process
BCBS New Mexico · Effective October 1, 2026
Prior authorization required
Medicare Advantage Prior Authorization Procedure Code List
BCBS Texas · Effective October 1, 2026
Prior authorization required
Medicare Advantage Prior Authorization Procedure Code List

FREQUENTLY ASKED QUESTIONS

Does Ambetter require prior authorization for E2100?

Ambetter lists E2100 on Ambetter from Arizona Complete Health CMS-0057-F prior authorization requirements for exchange plans (list dated December 31, 2025). Verify with the payer before scheduling.

Does AmeriHealth Caritas require prior authorization for E2100?

AmeriHealth Caritas lists E2100 on AmeriHealth Caritas Louisiana prior authorization service list for medicaid managed plans, with conditions. Verify with the payer before scheduling.

Does Anthem BCBS require prior authorization for E2100?

Anthem BCBS lists E2100 on List of items and services that require prior authorization (Medicare) for medicare advantage plans (list dated February 11, 2026). Verify with the payer before scheduling.

Does BCBS Illinois require prior authorization for E2100?

BCBS Illinois lists E2100 on Utilization Management Process for medicare advantage plans (list dated October 1, 2026). Verify with the payer before scheduling.

Does BCBS New Mexico require prior authorization for E2100?

BCBS New Mexico lists E2100 on Medicare Advantage Prior Authorization Procedure Code List for medicare advantage plans (list dated October 1, 2026). Verify with the payer before scheduling.

What insurance policy changes affect HCPCS E2100?

There are 10 tracked policy changes affecting HCPCS E2100, including updates from Mississippi Medicaid (DOM), Independence Blue Cross, UnitedHealthcare. Each change may modify coverage criteria, reimbursement rates, or prior-authorization requirements.

Which payers have updated policy for HCPCS E2100?

Payers that have issued tracked updates for HCPCS E2100 include: Mississippi Medicaid (DOM), Independence Blue Cross, UnitedHealthcare, Texas Medicaid, Indiana Medicaid (IHCP), Aetna, Michigan Medicaid - MDHHS.

How do I get notified when HCPCS E2100 policy changes?

Create a free account at PolicyChanges.app and save a search filtered to HCPCS E2100. You will get an email when new policy changes reference this code: daily or weekly, your choice, on every plan.

Why do payers change policies for HCPCS E2100?

Payers revise policies for individual billing codes to align with updated clinical guidelines, CMS rule changes, fraud and abuse prevention measures, or network cost-management goals. Changes can affect medical necessity criteria, place-of-service restrictions, bundling rules, or whether a code requires prior authorization.

See every payer rule for E2100

Prior authorization lists, coverage criteria, NCCI edits and Medicare coverage articles for E2100 in one place.

See every payer rule

All billing codes J3590 C9399 J3490 99215 99213 99202

Get alerts for changes like this

Save a search and get email alerts when a new policy change matches your filters: daily or weekly, your choice, on every plan.

Create a free alert How Policy Monitoring works

Biomarker Testing Coverage Implemented Effective July 1, 2026

Diabetic Supply Billing Notice

MA00.002t, Continuous Glucose Monitors and Home Blood Glucose Monitors and Supplies

Idaho Medicaid: New billing updates for diabetes equipment and supplies

MA00.002t, Continuous Glucose Monitors and Home Blood Glucose Monitors and Supplies

Updates to Prior Authorization for Services and Clinician-Administered Drug Benefits for HTW/HTW Plus

Idaho Medicaid: New billing updates for diabetes equipment and supplies

BT2026117: IHCP to update rates for certain DME and medical supply items effective Jan. 1, 2026

Diabetes Tests, Programs and Supplies (CPB 0070, reviewed 2026-02-20)

MSA 19-27

Prior authorization required

Prior authorization required

Prior authorization required

Does Ambetter require prior authorization for E2100?

Does AmeriHealth Caritas require prior authorization for E2100?

Does Anthem BCBS require prior authorization for E2100?

Does BCBS Illinois require prior authorization for E2100?

Does BCBS New Mexico require prior authorization for E2100?

What insurance policy changes affect HCPCS E2100?

Which payers have updated policy for HCPCS E2100?

How do I get notified when HCPCS E2100 policy changes?

Why do payers change policies for HCPCS E2100?