You can find the Social Security Disability Blue Book online under the SSA Medical Listings (A) and Childhood Listings (B). While the two sections are similar, you will find additional conditions listed in the Childhood section. Each condition is listed under a specific, numbered category. As an example, you will find conditions that involve the Musculoskeletal System listed under 1.00. Within each category, listed conditions receive a specific, corresponding number. Under the subcategory, you will find a description of each condition, as well as the requirements for SSD eligibility.