Table 2.

60% Rule as Established by the Centers for Medicare & Medicaid Services for IRF⁷

13 Defined Medical Conditions
Amputation	Brain injury
Burns	Congenital deformity
Fracture of femur (hip fracture)	Major multiple trauma
Spinal cord injury	Stroke
Active polyarticular rheumatoid arthritis, psoriatic arthritis, and seronegative arthropathies resulting in significant functional impairment of ambulation and other activities of daily living	Systemic vasculitides with joint inflammation resulting in significant functional impairment of ambulation and other activities of daily living
Severe or advanced osteoarthritis (osteoarthrosis or degenerative joint disease) involving two or more weight bearing joints (elbow, shoulders, hips, or knees but not counting a joint with a prosthesis) with the following characteristics: Joint deformity and substantial loss of range of motion Atrophy of muscles surrounding the joint Significant functional impairment of ambulation and other activities of daily living	Knee or hip joint replacement (or both) during an acute care hospitalization immediately preceding the inpatient rehabilitation stay which meet at least one of the following criteria: Bilateral knee or bilateral hip joint replacement surgery during acute care hospital admission immediately preceding the IRF admission Obesity with a Body Mass Index of at least 50 at the time of admission to IRF Patient age of at least 85 years at the time of admission to IRF
Neurological disorders, including: Multiple Sclerosis Motor neuron diseases Polyneuropathy Muscular Dystrophy Parkinson’s Disease

IRF=Acute Inpatient Rehabilitation Facility