ICD-10-CM > E00-E89 > E50-E64 > E63 E63 Other nutritional deficiencies Non-Billable/Non-Specific Type 2 Excludes dehydration (E86.0)failure to thrive, adult (R62.7)failure to thrive, child (R62.51)feeding problems in newborn (P92.-)sequelae of malnutrition and other nutritional deficiencies (E64.-) Codes E63.0Essential fatty acid [EFA] deficiencyE63.1Imbalance of constituents of food intakeE63.8Other specified nutritional deficienciesE63.9Nutritional deficiency, unspecified