<prompt> What is the latest reference to body length in ICD-10 to call it perinatal moality rate?28cm30cm35cm38cm  <response>: parks textbook of preventive and social medicine 23rd edition ninth revision of international classification of diseases ICD added that :1 babies choosen for inclusion in perinatal statistics should be tjose above a minimum bih weight ie1000g at bih. 2if bihweight is not available ,a gestational period of atleast 28weeks should be used if 12is not available ,body length of atleast 35cm should be used . 