This dataset is a raw healthcare dataset containing demographic, clinical, hospitalisation, insurance, billing, and readmission information for patients. The dataset includes variables such as patient ID, demographic details, height, weight, blood pressure, glucose, cholesterol, admission and discharge dates, diagnosis, insurance provider, billing amount, and readmission status. As the dataset was collected before cleaning, it contains data-quality issues such as inconsistent formats, invalid values, and inconsistently recorded categorical and date variables. The purpose of cleaning the dataset is to standardise the data and correct or handle these issues so that it can be used for accurate analysis