Introduction: Maternal Mortality Rate is a reflection of health care provided by a society to a women.Though, pregnancy being considered asa physiological state, it carries a risk of serious maternal morbidity and mortality. ICDMaternal Mortality (ICDMM) is based on 10th revision of ICD (ICD10) and its coding rules. It is intended to facilitate the consistent collection, analysis and interpretation of information on maternal deaths. Materials and Methods: This is a retrospective study of maternal deaths using Facility Based Maternal Death Review forms supplied by Ministry of Health and Family Welfare Government of India filled by doctor on duty at that time as a baseline document. Results: This study shows that major cause of maternal mortality in tertiary care centre was hypertensive disorders of pregnancy however hypertensive disorder of pregnancy alone was not the only cause of maternal death, it was complicated with different other causes like ARDS, APH, HELLP syndrome, PPH, Sickle cell disease, ARF, DIC, severe Anaemia and many others. Hypertensive disorders of pregnancy contributed 33% of all deaths whereas infections not related to pregnancy (19%), obstetric haemorrhage (17%), respiratory condition (7%), pregnancy related infection (6%), pregnancy with abortive outcomes (6%), CNS condition (4%), cardiac disease (4%), other obstetric complication (2%), endocrine condition (1%) and genitourinary condition (1%). Conclusion: Causes of Maternal Death varies from country to country and a woman may die from a wide range of complications in pregnancy, childbirth or the postpartum period. Applying ICDMM will decrease errors in coding and improve cause of maternal death attribution. This will enhance usability and comparability of maternal mortality statistics generated from ICD data.

Keywords: ICDMM Group; Maternal Mortality; Hypertensive Disorders of Pregnancy.