TIP SHEET
December 2022
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Definitions of Different Medicare Advantage Dual Eligible
Special Needs Plan (D-SNP) Types in 2023 and 2025
By Erin Weir Lakhmani, Mathematica
Dual Eligible Special Needs Plans (D-SNPs) are a type of Medicare Advantage (MA) plan that only enroll
dually eligible individuals. D-SNPs were originally authorized in 2003, began operating in 2006, and were
made a permanent part of Medicare Advantage in 2018. Since 2013, D-SNPs have been required to hold
contracts with the state Medicaid agency in each state where they operate, and those contracts must
contain at least certain minimum elements.
3
D-SNPs differ from other types of MA plans in several important ways. For example, in addition to being
required to hold contracts with state Medicaid agencies, all D-SNPs must: (1) at least coordinate (and in
some cases cover) Medicaid benefits for their enrollees; (2) have a Model of Care that is approved by the
National Committee for Quality Assurance (NCQA) that describes how the D-SNP will coordinate care for
its enrollees; (3) engage contract-level enrollee advisory committees in conversations about ways to
improve access to covered services, coordination of services, and health equity for underserved enrollee
populations; and (4) screen their enrollees for health-related social needs starting in 2024. Additionally,
because D-SNPs solely serve dually eligible individuals, they can cater their plan benefits, including
supplemental benefits, to dually eligible populations, and state Medicaid agencies can use their contracts
with D-SNPs to advance coordination of care for D-SNP enrollees and/or integration of Medicare and
Medicaid benefits. (See Appendix A for more details on the ways that D-SNPs differ from other MA plans).
In April 2019, the Centers for Medicare & Medicaid (CMS) issued a final rule that established definitions
for “fully” and “highly” integrated D-SNPs (FIDE SNPs and HIDE SNPs, respectively) and “applicable
integrated plans” (AIPs).
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In May 2022, CMS issued a final rule that updates those definitions, ultimately
demands greater levels of Medicare-Medicaid integration from FIDE SNPs and HIDE SNPs over time, and
In Brief: Key Points in This Tip Sheet
Dual Eligible Special Needs Plans (D-SNPs) must hold contracts with state Medicaid agencies, and states
can use contractual requirements to better integrate and coordinate care for individuals who are
dually eligible for Medicare and Medicaid. Federal rules issued in 2019 defined three different types of
D-SNPs: “fullyintegrated D-SNPs (FIDE SNPs); “highly” integrated D-SNPs (HIDE SNPs); and
Coordination-only (CO) D-SNPs, and also defined “applicable integrated plans” (AIPs).
1
New rules
issued in May 2022 updated those definitions.
2
This tip sheet summarizes the updated definitions of FIDE SNPs, HIDE SNPs, CO D-SNPs, and AIPs for
2023 and compares the requirements for each D-SNP type. This information can be helpful to states as
they develop and implement programs that advance Medicare-Medicaid integration for their dually
eligible populations.
Definitions of Different Medicare Advantage Dual Eligible Special Needs Plan Types in 2023 and 2025
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enables CO D-SNPs to qualify as AIPs in certain circumstances.
5
This tip sheet summarizes the definitions
of FIDE SNPs, HIDE SNPs, “coordination-only” (CO) D-SNPs, and AIPs for 2023 and compares the
requirements for each D-SNP type.
Fully Integrated D-SNPs (FIDE SNPs)
As of January 1, 2023, FIDE SNPs are D-SNPs that provide coverage of Medicare and Medicaid benefits
under a single legal entity that holds both: (1) an MA contract with CMS; and (2) a contract with the state
Medicaid agency that meets the requirements of a managed care organization as defined in section
1903(m) of the Social Security Act. FIDE SNPs must cover at least Medicaid primary and acute care services
and long-term services and supports (LTSS), including at least 180 days of nursing facility coverage during
the plan year.
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FIDE SNPs must also coordinate Medicare and Medicaid benefits “using aligned care
management and specialty care network methods for high-risk beneficiaries” and employ “policies and
procedures approved by CMS and the State to coordinate or integrate beneficiary communication
materials, enrollment, communications, grievances and appeals, and quality improvement” (42 CFR
422.2).
Starting in 2025:
FIDE SNPs
must operate with exclusively aligned enrollment (see Box 1) and
continue to cover primary and acute care services and LTSS (including at least
180 days of nursing facility coverage during the plan year), while also covering
all of the following additional Medicaid benefits: Medicare cost sharing;
behavioral health services; home health services; and medical equipment,
supplies and appliances.
A FIDE SNP’s capitated contract with the state Medicaid agency (for coverage of the required
Medicaid benefits) must also cover the entire service area of the D-SNP.
Box 1. Exclusively Aligned Enrollment
Exclusively aligned enrollment occurs when state policy limits enrollment in a D-SNP to only full-benefit
dually eligible individuals who receive coverage of Medicaid benefits through the D-SNP or a Medicaid
managed care plan owned and operated by the same parent company as the D-SNP (referred to in this
tip sheet as an “affiliated” Medicaid managed care plan).
Exclusively aligned enrollment facilitates use of several strategies to integrate coverage of Medicare
and Medicaid benefits, such as fully integrated enrollee materials, single ID cards, and unified appeal
and grievance processes. These strategies are only feasible when D-SNPs operate with exclusively
aligned enrollment.
For more information about exclusively aligned enrollment, see the Integrated Care Resource Center
(ICRC)’s May 2022 webinar at: https://integratedcareresourcecenter.com/webinar/exclusively-aligned-
enrollment-101-considerations-states-interested-leveraging-d-snps.
Coming
in 2025
Definitions of Different Medicare Advantage Dual Eligible Special Needs Plan Types in 2023 and 2025
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Highly Integrated D-SNPs (HIDE SNPs)
As of January 1, 2023, HIDE SNPs are D-SNPs that provide coverage of Medicaid benefits (through the D-
SNP or an affiliated Medicaid managed care plan), including coverage of LTSS, behavioral health benefits,
or both, under a capitated contract with the state Medicaid agency in the applicable state.
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The capitated
contract with the state Medicaid agency may be executed directly with the D-SNP, with the D-SNP’s
parent organization, or with another entity that is owned and controlled by the D-SNP’s
parent organization.
Starting in 2025, a HIDE SNP’s capitated contract with the state Medicaid agency (for
coverage of the required Medicaid benefits) must cover the entire service area of the
D-SNP.
Coordination Only (CO) D-SNPs
As of January 1, 2023, CO D-SNPs are D-SNPs that meet minimum CMS requirements but do not qualify as
a HIDE SNP or FIDE SNP. CO D-SNPs must: (1) hold a contract with the state Medicaid agency in each state
of operation that meets the requirements described at 42 CFR 422.107; (2) coordinate the delivery of
Medicare and Medicaid services for its enrollees; and (3) meet the information-sharing requirements
described at 42 CFR 422.107(d) (see Box 2 for more information).
Applicable Integrated Plans (AIPs)
As of January 1, 2023, AIPs are D-SNPs that: operate with exclusively aligned enrollment (see Box 1) and
cover at least some Medicaid benefits (through the D-SNP or through an affiliated Medicaid managed care
plan operated by the same parent organization as the D-SNP). Specifically, starting in 2023, to qualify as an
AIP, a D-SNP must be either:
(1) A HIDE SNP or a FIDE SNP with exclusively aligned enrollment; or
(2) A CO D-SNP that has exclusively aligned enrollment and covers (through the D-SNP or an
affiliated Medicaid managed care plan) Medicaid primary and acute care benefits, Medicare
cost sharing, and at least one of the following additional Medicaid benefits: behavioral health
Box 2. Information-Sharing Requirements for CO D-SNPs
Per 42 CFR 422.107(d), CO D-SNPs must “[notify], or arrange for another entity or entities to notify, the
State Medicaid agency, individuals or entities designated by the State Medicaid agency, or both, of
hospital and skilled nursing facility admissions for at least one group of high-risk full-benefit dual eligible
individuals, identified by the State Medicaid agency. The State Medicaid agency must establish the
timeframe(s) and method(s) by which notice is provided. In the event that [the D-SNP] authorizes
another entity or entities to perform this notification, the [D-SNP] must retain responsibility for
complying with [this] requirement.”
Coming
in 2025
Definitions of Different Medicare Advantage Dual Eligible Special Needs Plan Types in 2023 and 2025
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services; LTSS; home health services; or medical supplies, equipment and appliances. (42 CFR
422.561)
AIPs must implement unified plan-level appeal and grievance processes in accordance with the
requirements at 42 CFR 422.107(c)(9), 422.629 through 422.634, 438.210, 438.400, and 438.402. For
information about these unified appeal and grievance processes, see ICRC’s fact sheet on the topic.
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Any of the three types of D-SNPs (CO D-SNPs, HIDE SNPs, and FIDE SNPs) can be designated as an AIP if the
D-SNP meets the requirements described above. See Appendix B for a table summarizing the key federal
requirements that define and distinguish each of these three types of D-SNPs from each other, as well as
the key requirements that define AIPs.
Definitions of Different Medicare Advantage Dual Eligible Special Needs Plan Types in 2023 and 2025
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Appendix A. How D-SNPs Differ from Other Types of Medicare
Advantage Plans
D-SNPs differ from other types of Medicare Advantage plans in several ways:
Because D-SNPs only enroll dually eligible individuals, they can design their benefits (including
supplemental benefits) specifically to meet the needs of dually eligible populations. For
example:
Because dually eligible populations have limited income and resources and may require
support for social needs like housing, food, and transportation, D-SNPs may offer
supplemental benefits that are designed to support those needs, such as meal/nutrition
services after hospital stays or transportation services that expand upon the non-
emergency transportation services offered through Medicaid.
As 70 percent of dually eligible individuals have three or more chronic conditions,
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D-SNPs
have also been more likely than other MA plans to offer Special Supplemental Benefits for
the Chronically Ill (SSBCI),
10
such as pest control services for people with certain chronic
diseases, since those services first became available in 2020.
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Because most dually eligible individuals qualify for coverage of Medicare cost sharing
through Medicaid, D-SNPs may also be more likely than other MA plans to use rebate
dollars to offer supplemental benefits rather than to reduce member cost sharing
responsibility.
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D-SNPs must have a Model of Care approved by the National Committee on Quality Assurance
that describes how the D-SNP will coordinate care for, and meet the needs of, the dually eligible
populations it serves, including the D-SNP’s use of health risk assessments, individualized plans of
care, and interdisciplinary care teams (42 CFR 422.101(f)). CMS audits D-SNP care coordination
activities to ensure that the activities conducted align with what is stated in the Model of Care.
All D-SNPs are required to at least coordinate Medicaid benefits for their enrollees, including
helping enrollees access, request prior authorization for, and file grievances and appeals regarding
Medicaid benefits (42 CFR 422.562(a)(5)).
Starting in 2023, D-SNPs must establish and maintain at least one contract-level enrollee advisory
committee in each state where the D-SNP is offered. These committees must include a reasonably
representative sample of individuals enrolled in the D-SNP, and D-SNPs must use the committees
to solicit enrollee input on ways to improve access to covered services, coordination of services,
and health equity for underserved enrollee populations (42 CFR 422.107).
Starting in 2024, D-SNPs must collect information about their enrollees’ transportation, housing,
and food security needs during health risk assessments (42 CFR 422.101(f)(1)(i)).
Because all D-SNPs must hold contracts with the state Medicaid agencies in the states where the
D-SNPs operate, those state Medicaid agencies can impose additional requirements on D-SNPs to
Definitions of Different Medicare Advantage Dual Eligible Special Needs Plan Types in 2023 and 2025
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promote coordination and/or integration of Medicaid benefits for D-SNP enrollees. For example,
states can require D-SNPs to:
Cover Medicaid benefits through the D-SNP or an affiliated Medicaid managed care plan;
Enroll only full-benefit dually eligible individuals (or enroll full- and partial-benefit dually
eligible individuals in separate plan benefit packages) to simplify plan benefits and
materials;
Operate with exclusively aligned enrollment or maintain an affiliated Medicaid managed
care plan to promote aligned enrollment;
13,14
Incorporate Medicaid requirements, tools, or processes into their Models of Care;
Submit materials to the state for review to ensure accuracy and consistency of the
information shared by D-SNPs about Medicaid benefits;
Collaborate with the state in developing supplemental benefits;
Share data with the state to facilitate state awareness of D-SNP enrollees’ needs and
service use and/or facilitate state oversight of D-SNP activities.
Definitions of Different Medicare Advantage Dual Eligible Special Needs Plan Types in 2023 and 2025
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Appendix B. Federal Requirements Defining CO D-SNPs, HIDE SNPs, FIDE SNPs, and AIPs
In the table below, asterisks (*) are used to denote requirements that will take effect starting in 2025. This table does not list all federal D-SNP
requirements – it only illustrates certain key requirements involved in differentiating one type of D-SNP from another.
Federal Requirement CO D-SNP HIDE SNP FIDE SNP AIP
Must hold a Medicare Advantage contract with CMS that meets minimum requirements for D-SNPs Yes Yes Yes Yes
Must hold a contract with the state Medicaid agency in each state where the D-SNP operates, and those
contracts must meet the minimum requirements described at 42 CFR 422.107
Yes Yes Yes Yes
Must have a contract with the state Medicaid agency that meets the requirements of a managed care
organization as defined in section 1903(m) of the Social Security Act
No No Yes No
May provide coverage of Medicaid services to full-benefit dually eligible enrollees via a Prepaid Inpatient
Health Plan (PIHP) or a Prepaid Ambulatory Health Plan (PAHP)
Yes Yes No Yes
Must provide coverage of applicable Medicaid benefits to full-benefit dually eligible enrollees through the
same legal entity that contracts with CMS to operate as an MA plan
No No Yes No
Must have a capitated contract with the state Medicaid agency to provide coverage of LTSS to full-benefit
dually eligible enrollees, consistent with state policy
1
No No
2
Yes No
3
Must have a capitated contract with the state Medicaid agency that provides coverage of a minimum of 180
days of nursing facility services to full-benefit dually eligible enrollees during the plan year
No No Yes No
Must have a capitated contract with the state Medicaid agency that provides coverage of behavioral health
services to full-benefit dually eligible enrollees, consistent with state policy
1
No No
2
Yes* No
3
Must have a capitated contract with the state Medicaid agency that provides coverage of Medicaid primary
and acute care benefits
1
No No Yes No
3
Must operate with exclusively aligned enrollment No No Yes* Yes
Must implement unified plan-level appeal and grievance processes in accordance with the requirements at 42
CFR 422.107(c)(9), 422.629 through 422.634, 438.210, 438.400, and 438.402
No No Yes* Yes
Must notify the state (or the state’s designee) of acute hospital and skilled nursing facility admissions for a
designated group of “high risk” full-benefit dually eligible enrollees in accordance with the requirements
described at 42 CFR 422.107(d)
Yes No No No
4
Table Notes:
1
If the D-SNP is a HIDE SNP or a CO D-SNP, this capitated contract may be with an affiliated Medicaid managed care plan operated by the same parent company as the D-SNP.
Definitions of Different Medicare Advantage Dual Eligible Special Needs Plan Types in 2023 and 2025
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2
To qualify as a HIDE SNP, a D-SNP must either cover Medicaid behavioral health services or LTSS.
3
To qualify as an AIP, a CO D-SNP must cover Medicaid primary and acute care benefits, Medicare cost-sharing, and at least one of the following additional Medicaid benefits:
behavioral health services; LTSS; home health services; or medical supplies, equipment and appliances. A HIDE SNP could qualify as an AIP without covering Medicaid primary and
acute care benefits, and a HIDE SNP could qualify as an AIP without covering Medicaid behavioral health benefits if the HIDE SNP covers LTSS. Similarly, a HIDE SNP could qualify as an
AIP without covering LTSS if the HIDE SNP covers Medicaid behavioral health services. FIDE SNPs must cover primary and acute care benefits and LTSS, and FIDE SNPs must begin
covering behavioral health benefits (and operating as AIPs) starting in 2025.
4
If an AIP is a CO D-SNP, the D-SNP must comply with the information-sharing requirements at 42 CFR 422.107(d). HIDE SNPs and FIDE SNPs are not federally required to comply with
the information-sharing requirements at 42 CFR 422.107(d), but states can choose to include information-sharing requirements in their state Medicaid agency contracts with HIDE
SNPs and/or FIDE SNPs.
Definitions of Different Medicare Advantage Dual Eligible Special Needs Plan Types in 2023 and 2025
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ABOUT THE INTEGRATED CARE RESOURCE CENTER
The Integrated Care Resource Center is a national initiative of the Centers for Medicare & Medicaid
Services Medicare-Medicaid Coordination Office to help states improve the quality and cost-
effectiveness of care for dually eligible individuals. The state technical assistance activities provided by
the Integrated Care Resource Center are coordinated by Mathematica and the Center for Health Care
Strategies. For more information, visit www.integratedcareresourcecenter.com.
1
Centers for Medicare & Medicaid Services (CMS). “Medicare and Medicaid Programs; Policy and Technical Changes to the
Medicare Advantage, Medicare Prescription Drug Benefit, Programs of All-Inclusive Care for the Elderly (PACE), Medicaid Fee-For-
Service, and Medicaid Managed Care Programs for Years 2020 and 2021.” Federal Register, April 16, 2019. Available at:
https://www.federalregister.gov/documents/2019/04/16/2019-06822/medicare-and-medicaid-programs-policy-and-technical-
changes-to-the-medicare-advantage-medicare
2
CMS. “Medicare Program; Contract Year 2023 Policy and Technical Changes to the Medicare Advantage and Medicare
Prescription Drug Benefit Programs.” Federal Register, May 9, 2022. Available at:
https://www.federalregister.gov/documents/2022/05/09/2022-09375/medicare-program-contract-year-2023-policy-and-
technical-changes-to-the-medicare-advantage-and
3
The minimum elements for state Medicaid agency contracts with D-SNPs are described at 42 CFR 422.107.
4
CMS. “Medicare and Medicaid Programs; Policy and Technical Changes to the Medicare Advantage, Medicare Prescription Drug
Benefit, Programs of All-Inclusive Care for the Elderly (PACE), Medicaid Fee-For-Service, and Medicaid Managed Care Programs for
Years 2020 and 2021.” Federal Register, April 16, 2019. Available at:
https://www.federalregister.gov/documents/2019/04/16/2019-06822/medicare-and-medicaid-programs-policy-and-technical-
changes-to-the-medicare-advantage-medicare
5
CMS. “Medicare Program; Contract Year 2023 Policy and Technical Changes to the Medicare Advantage and Medicare
Prescription Drug Benefit Programs.” Federal Register, May 9, 2022. Available at:
https://www.federalregister.gov/documents/2022/05/09/2022-09375/medicare-program-contract-year-2023-policy-and-
technical-changes-to-the-medicare-advantage-and
6
Ibid.
7
Per 42 CFR 107(g)-(h), a D-SNP can receive CMS approval to qualify as a HIDE SNP or FIDE SNP even if its contract with the state
Medicaid agency has carve-outs of certain behavioral health services and/or LTSS, as long as those carve-outs: “(1) Apply primarily
to a minority of the beneficiaries eligible to enroll in the dual eligible special needs plan who use [behavioral health services/long-
term services and supports]; or (2) Constitute a small part of the total scope of [behavioral health services/long-term services and
supports] provided to the majority of beneficiaries eligible to enroll in the dual eligible special needs plan.
8
Stringer, R. and A. Tourtellotte. “Integrated Appeal and Grievance Processes for Integrated D-SNPs with “Exclusively Aligned
Enrollment.” Integrated Care Resource Center (ICRC), June 2020. Available at:
https://integratedcareresourcecenter.com/resource/integrated-appeal-and-grievance-processes-integrated-d-snps-exclusively-
aligned-enrollment
9
ICRC. “Dually Eligible Individuals: The Basics.” 2022. Available at:
https://integratedcareresourcecenter.com/sites/default/files/ICRC_DuallyEligible_Basics.pdf
10
ATI Advisory. “Growth in New, Non-Medical Benefits Since Implementation of the Creating High-Quality Results and Outcomes
Necessary to Improve Chronic (CHRONIC) Care Act.” April 2022 Data Insight. Available at: https://atiadvisory.com/wp-
content/uploads/2022/04/Data-Insight-Growth-in-New-Non-Medical-Benefits-Since-Implementation-of-the-CHRONIC-Care-
Act.pdf
11
CMS. “Implementing Supplemental Benefits for Chronically Ill Enrollees.” Guidance to Medicare Advantage Organizations, April
24, 2019. Available at: https://www.hhs.gov/guidance/sites/default/files/hhs-guidance-
documents/Supplemental_Benefits_Chronically_Ill_HPMS_042419.pdf
Definitions of Different Medicare Advantage Dual Eligible Special Needs Plan Types in 2023 and 2025
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12
For information about Medicare Advantage rebate dollars, see the Medicare Payment Advisory Commission (MedPAC)’s
Medicare Advantage Payment Basics Brief at: https://www.medpac.gov/wp-
content/uploads/2021/11/MedPAC_Payment_Basics_22_MA_FINAL_SEC.pdf.
13
For information on exclusively aligned enrollment, see ICRC’s webinar at:
https://integratedcareresourcecenter.com/webinar/exclusively-aligned-enrollment-101-considerations-states-interested-
leveraging-d-snps
14
For information on promoting aligned enrollment in D-SNPs, see ICRC’s tip sheet at:
https://integratedcareresourcecenter.com/PDFs/ICRC_DSNP_Aligning_Enrollment.pdf