sequential list of diseases or conditions leading directly to the cause of death
duration of each stated condition should not exceed the duration of condition further down the list
if conditions such as cardiac arrest, respiratory failure, chronic renal failure, pulmonary embolism, septicaemia, etc. are entered on line Ia always enter the underlying cause(s) on Ib, Ic etc. to indicate the sequence of events leading to death.
when a death is due to pneumonia, identify if the condition is primary hypostatic or due to aspiration. State the cause of any underlying condition that led to the pneumonia and identify the causative organism. If the pneumonia has been caused by debility or inactivity please state the condition leading to the inactivity or debility.
neoplasms should be classified according to histology and primary site. If the primary site is unknown, this should be recorded
the site and causative organism (if known) of an infection should be included
a condition should be regarded as being antecedent not only in an aetiological or pathological sense, but also where it is believed that this condition prepared the way for the direct cause by damage of tissues or impairment of function, even after a long interval.