The writing group agreed that it is appropriate to exclude admissions with length of stay >120 days, as is done in the NQF-endorsed ICH measures, to avoid double counting patients when generating quarterly reports. ICH may be identified by discharge International Classification of Diseases codes (as required by TJC), pro- spective or retrospective surveillance of admission logs by the hospital team, or a combination (as allowed by AHA s Get With The Guidelines Stroke). International Classification of Diseases, 10th Revision, Clinical Modification codes for ICH are shown in Table 1. The choice of method of case ascer- tainment and diagnosis via administrative billing codes versus chart review may depend on many registry-specific factors, including available resources, and the writing group endorses either method as a valid means of case ascertainment. Brief Summary of the Measurement Set Table 2 shows the AHA/ASA performance measure set for adults hospitalized with ICH. The set consists of 9 measures. This includes several measures that are already endorsed as ICH performance measures by other organizations, some that are analogous to measures already endorsed by others but revised either to make them directly relevant to ICH (venous thromboembolism prophylaxis) or to harmonize with isch- emic stroke measures (2 dysphagia measures), and 3 new measures. For example, 2 measures are currently already endorsed by the NQF, and 3 have analogous measures that are similar to NQF-endorsed measures but were revised for this ICH measure set.20 Two are currently part of TJC Primary and Comprehensive Stroke Center criteria, and 1 measure is similar to a Comprehensive Stroke Center criteria measure but revised. Two measures are either identical or analogous to the CDC s Paul Coverdell NationalAcute Stroke Program measures. Three are identical to measures in the AHA/ASA ischemic stroke performance measure set. 