Transformed Medicaid Statistical Information System (T-MSIS)

With the on-going changes to the national health care environment, the Centers for Medicare & Medicaid Services (CMS) has made significant investments to meet the organizational and information technology (IT) infrastructure to adequately represent CMS’ role in the healthcare marketplace. The Transformed Medicaid Statistical Information System (T-MSIS) is a critical data and systems component of the CMS Medicaid and CHIP Business Information Solution (MACBIS).

CMS has been working with states to transform our MSIS system, which was used to collect utilization and claims data as well as other key Medicaid and CHIP program information, to keep pace with the data needed to improve beneficiary quality of care, assess beneficiary to care and enrollment, improve program integrity, and support our states, the private market, and stakeholders with key information.

The T-MSIS data set contains:

  • Enhanced information about beneficiary eligibility
  • Beneficiary and provider enrollment
  • Service utilization
  • Claims and managed care data
  • Expenditure data for Medicaid and CHIP

Learn more in the T-MSIS Informational BulletinT-MSIS State Health Official and T-MSIS State Medicaid Director letters, as well as the T-MSIS Data Dictionary.

The following factors influence the T-MSIS file submission status:

  • Currency of state data – Files for a reporting period are submitted before the end of the subsequent month.
  • Completeness of state data – Current or historical resubmissions contain all data for those reporting months, and the data is complete and usable.
  • States completing Large System Enhancements (LSE) remain compliant, with no gaps in reporting

T-MSIS State File Submission Status

tmsis map

TMSIS State Overall ProgressAlabama: In Production and Submitting Currently

Alabama: In Production and Submitting Currently

Alaska: In Production and Submitting Currently

American Samoa: Does not participate in TMSIS

Arizona: In Production and Submitting Currently

Arkansas: In Production and Submitting Currently

California: In Production and Submitting Currently

Colorado: In production and Submitting Currently

Connecticut: In Production and Submitting Currently

District of Columbia: In Production and Submitting Currently

Delaware: In Production and Submitting Currently

Florida: In Production and Submitting Currently

Georgia: In Production and Submitting Currently

Guam: Working Towards Production

Hawaii: In Production and Submitting Currently

Idaho: In Production and Submitting Currently

Illinois: In Production and Submitting Currently

Indiana: In Production and Submitting Currently

Iowa: In Production and Submitting Currently

Kansas: In Production and Submitting Currently

Kentucky: In Production and Submitting Currently

Louisiana: In Production and Submitting Currently

Maine: In Production and Submitting Currently

Maryland: In Production and Submitting Currently

Massachusetts: In Production and Submitting Currently

Michigan: In Production and Submitting Currently

Minnesota: In Production and Submitting Currently

Mississippi: In Production and Submitting Currently

Missouri: In Production and Submitting Currently

Montana: In Production and Submitting Currently

Nebraska: In Production and Submitting Currently

Nevada: In Production and Submitting Currently

New Hampshire: In Production and Submitting Currently

New Jersey: In Production and Submitting Currently

New Mexico: In Production and Submitting Currently

New York: In Production and Submitting Currently

North Carolina: In Production and Submitting Currently

North Dakota: In Production and Submitting Currently

Northern Mariana Islands: Does not participate in TMSIS

Ohio: In Production and Submitting Currently

Oklahoma: In Production and Submitting Currently

Oregon: In Production and Submitting Currently

Pennsylvania: In Production and Submitting Currently

Puerto Rico: In Production and Submitting Currently

Rhode Island: In Production and Submitting Currently

South Carolina: In Production and Submitting Currently

South Dakota: In Production and Submitting Currently

Tennessee: In Production and Submitting Currently

Texas: In Production and Submitting Currently

Utah: In Production and Submitting Currently

U.S. Virgin Island: In Production and Submitting Currently

Vermont: In Production and Submitting Currently

Virginia: In Production and Submitting Currently

Washington: In Production and Submitting Currently

West Virgina: In Production and Submitting Currently

Wisconsin: In Production and Submitting Currently

Wyoming: In Production and Submitting Currently

T-MSIS State Overall Progress as of 12/09/2019

51 states (includes DC), 4 entities (IA CHIP, PA CHIP, WY CHIP, and Montana TPA) and 2 territories (Virgin Islands and Puerto Rico) are in production and submitting monthly (100%)

0 states in production and no longer current by 2 -6 months

0 states in production and no longer current by 6+ months

1 territory (Guam) working towards production

2 territories (American Samoa and Northern Mariana Islands) do not participate in T-MSIS

T-MSIS Coding Guidance Listserv

Receive announcements as well as new and updated CMS guidance about coding information related to the Transformed Medicaid Statistical Information System (T-MSIS).

MSIS Information

The Medicaid and Statistical Information System (MSIS) used by the Centers for Medicare and Medicaid Services (CMS) to gather key eligibility, enrollment, program, utilization and expenditure data for the Medicaid and Children's Health Insurance Program (CHIP) has been decommissioned and replaced by T-MSIS.