Transformed Medicaid Statistical Information System (T-MSIS)

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

In anticipation of health marketplace reforms, 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 TMSIS State Medicaid Director's Letter and T-MSIS Data Dictionary.

Below is the current T-MSIS state implementation status. There are multiple factors that have influenced the T-MSIS timeline such as: 

  • Federal technical and operational readiness, and states’ technical readiness
  • Quality and completeness of states’ data
  • States’ competing priorities (e.g. ICD-10 conversion, system replacements, expansion preparations, waivers and vendor performance etc.)

We look forward to all states transitioning to T-MSIS in 2017.

tmsis map

TMSIS State Overall Progress
Alabama: In Production and Current
Alaska: In Production and Tracking to Currency
Arizona: In Production and Current
Arkansas: In Production and Current
California: In Production and Tracking to Currency
Colorado: In Production and Current
Connecticut: In Production and Current
DC: In Production and Current
Delaware: In Production and Current
Florida: In Production and Current
Georgia: In Production and Current
Hawaii: In Production and Tracking to Currency
Idaho: In Production and Current
Illinois: In Production and Current
Indiana: In Production and Current
Iowa: In Production and Current
Kansas: In Production and Current
Kentucky: In Production and Current
Louisiana: In Production and Current
Maine: In Production and Current
Maryland: In Production and Current
Massachusetts: In Production and Current
Michigan : In Production and Current
Minnesota: In Production and Tracking to Currency
Mississippi: In Production and Current
Missouri: Not in Production
Montana: In Production and Current
Nebraska: In Production and Current
Nevada: In Production and Current
New Hampshire: In Production and Current
New Jersey: In Production and Current
New Mexico: In Production and Current
New York: In Production and Current
North Carolina: In Production and Current
North Dakota: In Production and Current
Ohio: In Production and Current
Oklahoma: In Production and Current
Oregon: In Production and Current
Pennsylvania: In Production and Current
Rhode Island: In Production and Current
South Carolina : In Production and Current
South Dakota: In Production and Current
Tennessee : In Production and Current
Texas : In Production and Tracking to Currency
Utah : In Production and Tracking to Currency
Vermont: In Production and Current
Virginia: In Production and Current
Washington: In Production and Current
West Virgina: In Production and Current
Wisconsin: Not in Production
Wyoming : In Production and Current

T-MSIS State Overall Progress as of 12/12/2017:

  • 43 states and 1 entitiy are in production and current (69.85%)
    • Pennsylvania CHIP entity is in production and current
  • 6 states are in production and tracking to currency (26.72%)
  • 2 states, 3 entities, and 2 territories are not in production (3.43%)
    • Wyoming CHIP, Montana TPA, Iowa CHIP entities
    • Puerto Rico and Virgin Islands territories
What’s Changing with T-MSIS and MACPro?
As-Is To-Be
  • 17+ separate legacy systems with Medicaid and CHIP data 
  • No Unified Data Model 
  • No Enterprise Change Control 
  • No Medicaid/CHIP Data Owner 
  • Prod and data storage: Baltimore Data Center/Virtual Data Center 
  • No data quality checks at the front end 
  • Custom development 
  • Waterfall development
  • 4 systems: T-MSIS, MACPro, Pharmacy, MBES 
  • Unified Medicare/Medicaid Data Model 
  • MACBIS Change Control 
  • MACBIS Data Owner 
  • Prod and storage: Amazon Cloud 
  • Data validation rules engine 
  • Heavy reliance upon COTS 
  • Agile development

Note: Most, if not all states and territories, will transition from MSIS to T-MSIS throughout 2017.

T-MSIS data will be made public to states and stakeholders via different data products in 2018. For more information, please see State Medicaid/CHIP Data Sharing Fact Sheet.

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.