ICD-10-CM > E00-E89 > E50-E64 > E56 E56 Other vitamin deficiencies Non-Billable/Non-Specific Type 1 Excludes sequelae of other vitamin deficiencies (E64.8) Codes E56.0Deficiency of vitamin EE56.1Deficiency of vitamin KE56.8Deficiency of other vitaminsE56.9Vitamin deficiency, unspecified