From Our World in Data (using World Health Organization definition): "The maternal mortality ratio (MMR) is defined as the number of maternal deaths during a given time period per 100,000 live births during the same time period. It depicts the risk of maternal death relative to the number of live births and essentially captures the risk of death in a single pregnancy or a single live birth. Maternal deaths: The annual number of female deaths from any cause related to or aggravated by pregnancy or its management (excluding accidental or incidental causes) during pregnancy and childbirth or within 42 days of termination of pregnancy, irrespective of the duration and site of the pregnancy, expressed per 100,000 live births, for a specified time period. (ICD-10)."[1] See the reference for a detailed definition of a live birth. See International Classification of Diseases (ICD-10).
The global rate is 224 maternal deaths per 100,000 live births in 2020 (latest available year for some countries).[1]