Writing group members were required to disclose in writing all financial relationships with industry relevant to this topic according to standard AHA reporting policies. Definition of ICH ICH was defined as spontaneous bleeding into the paren- chyma of the brain not caused by trauma. There are multiple different causes for ICH, including hypertension, coagulopa- thy, underlying vascular anomalies, sympathomimetic drugs of abuse, and cerebral amyloid angiopathy. These perfor- mance measures are meant to apply to the same condition described in the AHA/ASA Guidelines for the Management of Spontaneous Intracerebral Hemorrhage. 2 Thus, intracra- nial hemorrhage that is caused by an initial arterial or venous infarct does not apply, nor does intraparenchymal hemorrhage that occurs as a result of trauma or of treatment with tissue- type plasminogen activator. These performance measures also do not apply to acute ischemic stroke or subarachnoid hemor- rhage, which are the subject of other current or future docu- ments. In addition, these performance measures are intended for patients for whom the principal reason for hospital admis- sion is ICH. Patients who are admitted to the hospital for another reason (eg, acute myocardial infarction) and develop an ICH during hospitalization are excluded. Although these patients should generally be treated according to the ICH guidelines, concerns of the writing group about the feasibility of case ascertainment, diagnosis attribution, and data reliabil- ity led to exclusion of these patients from documented assess- ment with these performance measures. Table 1 includes a list of International Classification of Diseases, 10th Revision, Table 1. 