Long Term Acute Care Hospital (LTACH) Admission and Transition of Care Criteria
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Defines medical necessity criteria for admission to and transition from Long-Term Acute Care Hospitals (LTACHs) for Medicare Advantage and commercial members of Blue Cross & Blue Shield of Rhode Island.
No material clinical or coverage changes in this revision.
LTACH Admission, Continued Stay, and Transition Criteria
inv-01: Admission Criteria
Admission to an LTACH may be considered medically necessary when ALL the following criteria are met:
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inv-02: Common clinically appropriate conditions
Conditions or common reasons that may meet admission criteria (non-exclusive examples):
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inv-03: Transition of Care Criteria
Transition of care from LTACH to a lower level of care may be considered medically necessary when ALL the following criteria are met:
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inv-04: Concurrent Review
Concurrent review
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Benefits and coverage for Long-Term Acute Care Hospital (LTACH) services may vary by contract. Determine member-specific applicability by consulting the member's Benefit Booklet, Evidence of Coverage, or Subscriber Agreement for hospital benefits and any applicable exclusions.
Coding and Clinical Thresholds
| No codes listed |
Prior Authorization, Documentation, and Provider Responsibilities
Prior authorization requirement for plan types
Prior authorization must be obtained for Medicare Advantage members; for Commercial members prior authorization is recommended.
Provider actions for authorization and transitions
Follow the policy's provider requirements for authorization and care transitions as described in the source policy.
Required clinical documentation for admission and transition
Include documentation of daily practitioner interventions, the patient’s clinical complexity (including comorbidities and active treatments), RN coverage, and multidisciplinary services; for transitions also document infection, hemodynamic, respiratory, nutrition, pain control, and neurologic stability.
- Daily practitioner interventions and intensive treatment needs
- Active comorbid conditions and ongoing treatments
- 24-hour RN coverage
- Availability and involvement of multidisciplinary team (PT, OT, ST, RT)
- For transitions: infection stability or outpatient-manageable anti-infective regimen
- For transitions: hemodynamic and electrolyte stability, stable respiratory status (no q4h monitoring), adequate nutrition and pain control, and baseline neurologic status
Denial or delay risk without prior authorization
Failure to obtain prior authorization for Medicare Advantage members may result in delayed benefits or denial of coverage.
Clinical and Operational Background
Long-term acute care hospitals (LTACHs) provide extended hospital-level medical and rehabilitative care for clinically complex patients who require intense, specialized treatment for prolonged periods — typically with an average/typical length of stay greater than 25 days. LTACHs accept patients who still need daily practitioner interventions and hospital-level nursing and multidisciplinary services after the acute diagnostic phase has passed.
Key Definitions
Detailed Admission Criteria (Structured)
inv-16: LTACH admission criteria
LTACH admission criteria
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Continued Stay / Ongoing Medical Necessity
inv-17: Continued stay criteria
Continued stay
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Discharge and Lower Level of Care Criteria
Transition from an LTACH to a lower level of care may be considered medically necessary when all care can be managed at the lower level and the patient demonstrates clinical stability. Key criteria include: no signs of active infection or stability on an outpatient-manageable anti-infective regimen; hemodynamic and electrolyte stability without need for daily medication adjustments; cardiovascular status not requiring cardiac monitoring; dialysis not required or safely manageable elsewhere; respiratory status stable without q4-hour monitoring; and adequate nutrition, pain control, and baseline neurologic status. For patients who were ventilator dependent on admission, transition is appropriate only if they are off the ventilator or are stable and unable to be weaned with stable ventilator settings/airway, stable oxygenation during movement or suctioning, SaO2 ≥ 90% on FiO2 ≤ 40%, and suctioning required less often than every 4 hours.
Length of Stay Expectations
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