ICD-10-CM > E00-E89 > E50-E64 > E53 E53 Deficiency of other B group vitamins Non-Billable/Non-Specific Type 1 Excludes sequelae of vitamin B deficiency (E64.8) Codes E53.0Riboflavin deficiencyE53.1Pyridoxine deficiencyE53.8Deficiency of other specified B group vitaminsE53.9Vitamin B deficiency, unspecified