1 Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes. 2  This is the American ICD-10-CM version of J11.1. 3  Other international ICD-10 versions may differ.
It takes approx. 36-40 weeks for the baby to be fully developed. Before that, the baby is premature and might have to spend some time in an incubator.
A 7-10% loss is considered normal for breastfed babies. Most babies should regain this lost weight by days 10-14 of life. If a baby loses a significant amount of weight, is sick, or is premature, it may take up to 3 weeks to get back to his or her birth weight. Most newborns will gain about 5-7 oz a week for the first few months. Many babies will have doubled their birth weight by about 3-4 months. At 4 months, weight gain will begin to look different for breastfed and formula fed babies. Research clearly shows that breastfed babies and formula fed babies grow at different rates starting at about 4 months of age.