Weight

1000-2499 grams at birth (low)See Low, birthweight
999 grams or less at birth (extremely low)See Low, birthweight, extreme
and length below 10th percentile for gestational ageP05.1-
below but length above 10th percentile for gestational ageP05.0-
gain (abnormal) (excessive)R63.5
gain (abnormal) (excessive), in pregnancySee Pregnancy, complicated by, excessive weight gain
gain (abnormal) (excessive), in pregnancy, lowSee Pregnancy, complicated by, insufficient, weight gain
loss (abnormal) (cause unknown)R63.4