ICD-10-CM > K00-K95 > K40-K46 > K42 K42 Umbilical hernia Non-Billable/Non-Specific Includes paraumbilical hernia Type 1 Excludes omphalocele (Q79.2) Codes K42.0Umbilical hernia with obstruction, without gangreneK42.1Umbilical hernia with gangreneK42.9Umbilical hernia without obstruction or gangrene