MAX Other Services File

Medicaid MAX (Medicaid Analytic Extract) Other Services (OT) file contains claim records for a variety of Medicaid services, including physician services, outpatient hospital institutional utilization, lab/X-ray, clinic services, home health, hospice and premium payments.

What does this file include? (variable highlights)

  • As appropriate for the type of service on the record:
    • 2 diagnosis codes
    • 1 procedure code
  • Broadly defined Type of Service codes
  • Charges and payments (FFS only)
  • Provider identifier

Special considerations

  • Encounter record reporting may not be complete. Data reporting may vary by state, year and eligibility group

Availability of this file


CY 1999-2015

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.

MAX files in 2013, 2014, and 2015, while in the MAX file format, may have used T-MSIS data as the source data. Please see the state and year availability table: 

See what is in this file