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Medicaid/CHIP Coverage and Eligibility
Individuals who are incarcerated may be enrolled in Medicaid, if otherwise eligible, but may only
receive Medicaid-covered services under limited circumstances. For purposes of Medicaid and
CHIP, an “inmate” is an individual of any age who is in custody and held involuntarily through
operation of law enforcement authorities in a public institution, other than a child care institution,
publicly operated community residence that serves no more than 16 residents, or a public
educational or vocational training institution for purposes of securing educational or vocational
training.
A public institution can include a correctional institution operated by, or under contract with, the
United States, a state, a territory, political subdivision of a state or territory, or an Indian tribe for
the confinement or rehabilitation of persons charged with or convicted of a criminal offense.
The “inmate payment exclusion” is a coverage and reimbursement exclusion, meaning that
federal financial participation (FFP) is not available for Medicaid services provided to the
individual who is incarcerated, unless the individual is admitted to a medical institution as an
inpatient. This is called the “exception” to the inmate payment exclusion. A qualified “medical
institution” includes only a hospital, nursing facility, intermediate care facility for individuals with
intellectual disabilities, or a psychiatric residential treatment facility (for individuals under age 21)
that meets applicable federal regulations and conditions of participation. (For guidance on the
Medicaid inmate payment exclusion policy, see Medicaid.gov/federal-
policyguidance/downloads/sho16007.pdf).
In addition to the inmate exclusion, Medicaid also includes a coverage exclusion related to
services for patients in institutions for mental diseases (IMDs), which include residential
treatment facilities of over 16 beds that are primarily engaged in the diagnosis, treatment, or
care of persons with mental diseases.
Individuals are no longer considered “inmates of a public institution” when they are on parole,
probation, have been released to the community pending trial, are on home confinement, are
voluntarily residing in a correctional institution for a temporary period of time after their case is
adjudicated while arrangements are being made for transfer to a community residence, or are
residing in a supervised “halfway house” if they have freedom of movement and association,
including the ability to work outside the facility, use community resources, and seek health care
in the community to the same or similar extent as other Medicaid beneficiaries.
Inmates of a public institution are not eligible for the Children’s Health Insurance Program
(CHIP).
Using Medicaid While Incarcerated
As noted above, FFP is not available for Medicaid services provided to inmates of a public
institution unless the exception to the payment exclusion for beneficiaries receiving inpatient
care applies. Retroactive Medicaid coverage generally is available for services received in a