ICD-10-CM > P00-P96 > P05-P08 > P07 > P07.0 P07.0 Extremely low birth weight newborn Non-Billable/Non-Specific Applicable To Newborn birth weight 999 g. or less Type 1 Excludes low birth weight due to slow fetal growth and fetal malnutrition (P05.-) Codes P07.00Extremely low birth weight newborn, unspecified weightP07.01Extremely low birth weight newborn, less than 500 gramsP07.02Extremely low birth weight newborn, 500-749 gramsP07.03Extremely low birth weight newborn, 750-999 grams