To qualify for Supplemental Security Income (SSI), an individual must be aged (age 65 or older), blind, or disabled. The Listing of Impairments describes impairments considered severe enough to prevent an individual from doing any gainful activity, and most of the listed impairments are permanent or expected to result in death. The following are some examples of impairments that may qualify for SSI:

• Musculoskeletal disorders
• Special senses and speech impairments
• Visual impairments
• Respiratory disorders
• Cardiovascular impairments
• Digestive system impairments
• Genitourinary impairments
• Hematological disorders
• Skin disorders
• Endocrine disorders
• Neurological disorders
• Mental disorders

To be eligible for SSI, an individual must also have limited income and resources. The value of the things they own must be less than $2,000 if they are single or less than $3,000 for married couples living together. The criteria in the Listing of Impairments apply only to one step of the multi-step sequential evaluation process, and the absence of a listing-level impairment does not necessarily mean that an individual is not disabled.