Data Matching Issues (DMIs) put your clients at risk of losing coverage and/or financial assistance. Some examples of errors that may cause a DMI to generate include:

• The consumer’s Social Security Number is missing from the application
• Household income information is incomplete or incorrect on the application
•  The consumer’s name on the application differs from the way it appears on their citizenship document or another applicable document (e.g., a Social Security card)
•   Immigration document numbers and/or ID numbers are missing from the application
•  The consumer’s information doesn’t match information from the Marketplace’s trusted data source or the trusted data source doesn’t have information for the consumer

To resolve a DMI, a consumer must submit required documents to the Marketplace so it can make a final eligibility determination.

Acceptable documents

Please take action to assist your clients with submitting any required documentation to the Marketplace as soon as possible; most consumers must resolve their issue within 90 days (95 days for Citizenship and Immigration DMIs). If the DMI is not resolved by the deadline provided to the member, they could potentially lose coverage, premium tax credits, and other financial assistance.  

Click the buttons below to review further DMI resources from Centers for Medicare & Medicaid Services.

Resolving DMIs

Resolve income DMIs

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