TAF Inpatient File

The Medicaid and CHIP TAF (T-MSIS Analytic File) Inpatient (IP) file contains records for enrollees who had an inpatient hospital stay. Records include fee-for-service (FFS) claims, managed care encounters and supplemental payments for Medicaid, Medicaid-expansion CHIP and separate CHIP.

What does this file include? (variable highlights)

  • Records included based on discharge date within the file calendar year
  • Active, non-voided, non-denied final action claims
  • Diagnosis codes
  • Present on Admission Indicator
  • Procedure codes
  • Procedure date
  • Discharge status
  • Charges and payments
  • Provider identifier

Special considerations

  • Available encounter data may vary by state, year and eligibility group.
  • For resources on Medicaid TAF data quality, click here.

Availability of this file

Availability:
CY 2014-2019

For calendar years 2014 and 2015, the CMS Medicaid research files will be in either the MAX or TAF format depending on when the state transitioned to T-MSIS data submissions. 

Please see the state and year availability table: 

For earlier versions of Medicaid data, please refer to the MAX data file page.

See what is in this file