23 MAC Pt. 202, R. 1.3
Prior Authorization of Inpatient Hospital Services
Cite as 23 Miss. Admin. Code Pt. 202, R. 1.3
Prior Authorization of Inpatient Hospital Services
A. Requirement
1. Prior authorization is required from the appropriate Utilization Management/Quality
Improvement Organization (UM/QIO) for all inpatient hospital admissions except for
vaginal deliveries with a length of stay of two (2) days or less, cesarean deliveries with a
length of stay of four (4) days or less and well newborns with a length of stay of five (5)
days.
a) Emergent admissions and urgent admissions must be authorized on the next working
day after admission.
b) Failure to obtain the prior authorization will result in denial of payment to all
providers billing for services including, but not limited to, the hospital and the
attending physician.
2. Prior authorization must be obtained from the appropriate UM/QIO when a Medicaid
beneficiary:
a) Has third party insurance, and/or
b) Is also covered by Medicare Part A only or Medicare Part B only.
3. Prior authorizations are not required for Medicaid beneficiaries who are also covered by
both Medicare Part A and Part B unless inpatient Medicare benefits are exhausted.
4. Inpatient hospital stays that exceed the Diagnostic Related Group (DRG) Long Stay
Threshold require a Treatment Authorization Number (TAN) for inpatient days that
exceed the threshold.
B. Non-Approved Services
1. Medicaid beneficiaries in hospitals shall be billed for inpatient care occurring after they
have received written notification of Medicaid non-approval of hospital services.
Notification prior to the beneficiary’s admission shall be cause to bill the beneficiary for
full payment if he/she enters the hospital. Notification at or after admission shall be cause
to bill the beneficiary for all services provided after receipt of the notice.
2. The hospital cannot bill the Medicaid beneficiary for an inpatient stay when it is
determined upon retrospective review by the appropriate UM/QIO that the admission did
not meet inpatient care criteria.
C. Maternity-Related Services
1. Hospitals must report all admissions for deliveries to the Division of Medicaid and the
appropriate UM/QIO. The hospitals must report the admissions in accordance with the
requirements provided by the Division of Medicaid and the appropriate UM/QIO. A TAN
is issued to cover up to nineteen (19) days, the DRG Long Stay Threshold, for a delivery.
2. For admissions exceeding nineteen (19) days for a delivery, providers must submit a
request for a continued stay in accordance with the policies and procedures provided by
the appropriate UM/QIO.
D. Newborns
1. Well newborn services provided in the hospital must be billed separately from the
mother’s hospital claim.
a) The hospital must notify the Division of Medicaid within five (5) calendar days of a
newborn’s birth via the Newborn Enrollment Form located on the Division of
Medicaid’s website.
b) The Division of Medicaid will notify the provider within five (5) business days of the
newborn’s permanent Medicaid identification (ID) number.
2. The hospital must obtain a TAN for sick newborns requiring hospitalization whose length
of stay is six (6) days or more. The baby’s date of birth is the sick newborn’s beginning
date for certification. A sick newborn whose length of stay exceeds nineteen (19) days
requires a concurrent review by the appropriate UM/QIO.
3. The hospital must obtain authorization for newborns delivered outside the hospital and
newborns admitted to accommodations other than well baby.