Medicaid Analytic Extract Inpatient

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The Medicaid Analytic Extract (MAX) Inpatient (IP) file contains complete stay records for enrollees who had an inpatient hospital stay. Records include Original Medicare (OM) claims and encounter records submitted for stays covered by Medicaid managed care.

What does this file include? (variable highlights)

10 diagnosis code fields
7 procedure code fields
Discharge status
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.

Program:

Medicaid

Category:

Medicaid Utilization

Privacy Level:

Research Identifiable Files

Availability of this file

Availability:

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:

MAX TAF Availability Matrix.xlsx14.42 KB

Date Requests Can Be Accepted for Upcoming Releases:

N/A

See what is in this file

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