ICD-10-CM > S00-T88 > T36-T50 > T45 > T45.2 T45.2 Poisoning by, adverse effect of and underdosing of vitamins Non-Billable/Non-Specific Type 2 Excludes poisoning by, adverse effect of and underdosing of nicotinic acid (derivatives) (T46.7)poisoning by, adverse effect of and underdosing of iron (T45.4)poisoning by, adverse effect of and underdosing of vitamin K (T45.7) Codes T45.2XPoisoning by, adverse effect of and underdosing of vitaminsT45.2X1Poisoning by vitamins, accidental (unintentional)T45.2X1A..., initial encounterT45.2X1D..., subsequent encounterT45.2X1S..., sequelaT45.2X2Poisoning by vitamins, intentional self-harmT45.2X2A..., initial encounterT45.2X2D..., subsequent encounterT45.2X2S..., sequelaT45.2X3Poisoning by vitamins, assaultT45.2X3A..., initial encounterT45.2X3D..., subsequent encounterT45.2X3S..., sequelaT45.2X4Poisoning by vitamins, undeterminedT45.2X4A..., initial encounterT45.2X4D..., subsequent encounterT45.2X4S..., sequelaT45.2X5Adverse effect of vitaminsT45.2X5A..., initial encounterT45.2X5D..., subsequent encounterT45.2X5S..., sequelaT45.2X6Underdosing of vitaminsT45.2X6A..., initial encounterT45.2X6D..., subsequent encounterT45.2X6S..., sequela