These are the SSD guidelines for ITP. Once you file, there is a six month waiting period until you hear whether or not you are approved. If you are approved, there is a year waiting period until you can receive Medicare. It is hard to get approved for ITP.
The Social Security Administration (SSA) discusses disorders of the blood and circulatory system under Section 7.00 Hematological Disorders, and defines “chronic” as lasting at least three months. You must have been examined at least twice in that three-month period. Chronic Thrombocytopenia, regardless of the cause, is considered under Section 7.06. To meet the requirements of this listing, you must have a platelet count that is repeatedly below 40,000 AND have at least one of the following symptoms: at least one spontaneous hemorrhage which required transfusion within five months prior to filing for disability benefits OR you must have had intracranial bleeding within twelve months prior to filing for disability benefits.
www.disability-benefits-help.org/disabling-conditions/chronic-thrombocytopenia-and-social-security-disability