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A4253

PAYER POLICY CHANGES

A4253 Insurance Policy Changes

HCPCS A4253 is officially defined as "Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips." HCPCS A4253 is referenced in 11 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 A4253 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.
Independence Blue Cross · Effective Oct 29, 2025Medium impact
05.00.05t, Equipment, Supplies, and Pharmaceuticals for the Treatment of Diabetes
Independence Blue Cross has reissued Policy 05.00.05t with minor clarifications to diabetes equipment, supplies, and pharmaceuticals coverage. The most recent update (10/29/2025) adds ICD-10 code E11.A (Type 2 diabetes mellitus without complications in remission) and HCPCS code J1612 (Injection, glucagon (gvoke), 0.01 mg), while previous updates added CGM and artificial pancreas device codes (K0553, K0554, S1034, S1035, S1036) and clarified coverage limits for blood glucose test strips (A4253) and lancets (A4259) at up to 200 units per month.
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.
Colorado Medicaid · Identified Jun 20, 2026Medium impact
Health First Colorado (Colorado's Medicaid Program) News and Updates (B2300493 - 04/2023)
Inpatient hospital claims for services requiring prior authorization will deny without an approved prior authorization, with implementation beginning May 1, 2023 under the Inpatient Hospital Review Program 2.0. After April 2, 2023, Private Duty Nursing services are authorized based on the approved PAR, and any services billed that are not approved on the PAR will deny. Effective April 1, 2023, several DME codes have higher unit limits, and home delivered meals after a hospital discharge are billed with HCPCS S5170 and modifier TG or TF.

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REFERENCE DATA

Payers with rules8

Payers requiring prior auth8

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

FREQUENTLY ASKED QUESTIONS

Does AmeriHealth Caritas require prior authorization for A4253?

AmeriHealth Caritas lists A4253 on AmeriHealth Caritas Louisiana prior authorization service list for medicaid managed plans, with conditions. Verify with the payer before scheduling.

Does BCBS Illinois require prior authorization for A4253?

BCBS Illinois lists A4253 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 A4253?

BCBS New Mexico lists A4253 on Medicare Advantage Prior Authorization Procedure Code List for medicare advantage plans (list dated October 1, 2026). Verify with the payer before scheduling.

Does BCBS Texas require prior authorization for A4253?

BCBS Texas lists A4253 on Medicare Advantage Prior Authorization Procedure Code List for medicare advantage plans (list dated October 1, 2026). Verify with the payer before scheduling.

Does CalViva Health require prior authorization for A4253?

CalViva Health lists A4253 on CalViva Health CMS-0057-F prior authorization requirements for medicaid managed plans (list dated December 31, 2025). Verify with the payer before scheduling.

What insurance policy changes affect HCPCS A4253?

There are 11 tracked policy changes affecting HCPCS A4253, 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 A4253?

Payers that have issued tracked updates for HCPCS A4253 include: Mississippi Medicaid (DOM), Independence Blue Cross, UnitedHealthcare, Texas Medicaid, Aetna, Michigan Medicaid - MDHHS, Colorado Medicaid.

How do I get notified when HCPCS A4253 policy changes?

Create a free account at PolicyChanges.app and save a search filtered to HCPCS A4253. 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 A4253?

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 A4253

Prior authorization lists, coverage criteria, NCCI edits and Medicare coverage articles for A4253 in one place.

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All billing codes J3590 C9399 J3490 99215 99213 99202

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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

05.00.05t, Equipment, Supplies, and Pharmaceuticals for the Treatment of Diabetes

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

MSA 19-27

Health First Colorado (Colorado's Medicaid Program) News and Updates (B2300493 - 04/2023)

Prior authorization required

Prior authorization required

Prior authorization required

Does AmeriHealth Caritas require prior authorization for A4253?

Does BCBS Illinois require prior authorization for A4253?

Does BCBS New Mexico require prior authorization for A4253?

Does BCBS Texas require prior authorization for A4253?

Does CalViva Health require prior authorization for A4253?

What insurance policy changes affect HCPCS A4253?

Which payers have updated policy for HCPCS A4253?

How do I get notified when HCPCS A4253 policy changes?

Why do payers change policies for HCPCS A4253?