287.4 is a billable ICD-9-CM medical code that can be used to specify a diagnosis on a reimbursement claim.
Diagnosis Definition(s)
A general class of thrombocytopenia due to immune destruction of platelets. It includes idiopathic thrombocytopenic purpura, as well as immune destruction-related thrombocytopenias due to other reasons (e.g., AIDS, transfusion, lupus erythematosus).