ICD-10-CM > S00-T88 > T36-T50 > T46 > T46.1 T46.1 Poisoning by, adverse effect of and underdosing of calcium-channel blockers Non-Billable/Non-Specific Codes T46.1XPoisoning by, adverse effect of and underdosing of calcium-channel blockersT46.1X1Poisoning by calcium-channel blockers, accidental (unintentional)T46.1X1A..., initial encounterT46.1X1D..., subsequent encounterT46.1X1S..., sequelaT46.1X2Poisoning by calcium-channel blockers, intentional self-harmT46.1X2A..., initial encounterT46.1X2D..., subsequent encounterT46.1X2S..., sequelaT46.1X3Poisoning by calcium-channel blockers, assaultT46.1X3A..., initial encounterT46.1X3D..., subsequent encounterT46.1X3S..., sequelaT46.1X4Poisoning by calcium-channel blockers, undeterminedT46.1X4A..., initial encounterT46.1X4D..., subsequent encounterT46.1X4S..., sequelaT46.1X5Adverse effect of calcium-channel blockersT46.1X5A..., initial encounterT46.1X5D..., subsequent encounterT46.1X5S..., sequelaT46.1X6Underdosing of calcium-channel blockersT46.1X6A..., initial encounterT46.1X6D..., subsequent encounterT46.1X6S..., sequela