You are incorrectly nit picking. Understanding the coding of cause of death is a bit more complicated than most people would first think. The World Health Organization (WHO) defines the underlying cause of death as “the disease or injury which initiated the train of morbid events leading directly to death or the circumstances of the accident or violence which produced the fatal injury”, which is based on the standardised method of death data collection, typically a physician or coroner lists ICD codes for describing the sequence of events that lead to the death, and also any contributing causes. These are then used to determine the ICD code for the underlying cause of death. There are a number of ways to group underlying cause of death, many methods include multiple grouping (e.g. intentional drug overdose, is both suicide and drug related).