ICD-10-CM>E00-E89>E70-E88>E73E73Lactose intoleranceNon-Billable/Non-SpecificCodesE73.0Congenital lactase deficiencyE73.1Secondary lactase deficiencyE73.8Other lactose intoleranceE73.9Lactose intolerance, unspecified
ICD-10 Fast