Description of intracerebral hemorrhage locations, in the United States, based on international classification of diseases, tenth revision.

Introduction of the International Classification of Diseases, Tenth Revision (ICD-10) in 2015 was aimed for a more detailed classification of mortality statistics of diseases, such as classifying the anatomical locations for intracerebral hemorrhage (ICH). We aimed to describe the demographics and in-hospital mortality of specified ICH locations based on ICD-10 classification. Patients with a principal diagnosis of spontaneous ICH in the United States, extracted from the Nationwide Inpatient Sample (NIS) from 2015 to 2018. Subgroups of ICH locations were analyzed individually for age, gender, ethnicity, in-hospital mortality, hospital length of stay (LOS), hospital cost, and EVD placement. During the study period, there were 408,285 ICH patients with a mean age of 66.28 (17.11) years, 52.09% male, mainly Intraventricular (21.87%) and cortical hemispheres (19.83%). Total ICH in-hospital mortality was 21.07%, while brainstem was associated with the highest in-hospital mortality (40.68%) followed by intraventricular (33.08%) and multiple localized locations (30.16%). The mean hospital length of stay was 9.56(14.10) days, and the mean hospital cost was $32,453.38(56,851.59). Intraventricular Hemorrhage had the highest hospital LOS 12.39(17.44) and the highest hospital cost $47,385.25(76,187.5). Our results characterized the demographics of ICH in the US with in-hospital mortality of one out of five patients. Detail breakdown of ICH locations can improve the mortality statistics and provide more information about the ICH locations with higher hospital expenses.

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