ICD-10-CM > P00-P96 > P90-P96 > P92 P92 Feeding problems of newborn Non-Billable/Non-Specific Type 1 Excludes eating disorders (F50.-) Type 2 Excludes feeding problems in child over 28 days old (R63.3-) Codes P92.0Vomiting of newbornP92.01Bilious vomiting of newbornP92.09Other vomiting of newbornP92.1Regurgitation and rumination of newbornP92.2Slow feeding of newbornP92.3Underfeeding of newbornP92.4Overfeeding of newbornP92.5Neonatal difficulty in feeding at breastP92.6Failure to thrive in newbornP92.8Other feeding problems of newbornP92.9Feeding problem of newborn, unspecified