ICD-10-CM > S00-T88 > T36-T50 > T45 > T45.1 T45.1 Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs Non-Billable/Non-Specific Type 1 Excludes poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs (T45.A)poisoning by, adverse effect of and underdosing of tamoxifen (T38.6) Codes T45.1XPoisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugsT45.1X1Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional)T45.1X1A..., initial encounterT45.1X1D..., subsequent encounterT45.1X1S..., sequelaT45.1X2Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harmT45.1X2A..., initial encounterT45.1X2D..., subsequent encounterT45.1X2S..., sequelaT45.1X3Poisoning by antineoplastic and immunosuppressive drugs, assaultT45.1X3A..., initial encounterT45.1X3D..., subsequent encounterT45.1X3S..., sequelaT45.1X4Poisoning by antineoplastic and immunosuppressive drugs, undeterminedT45.1X4A..., initial encounterT45.1X4D..., subsequent encounterT45.1X4S..., sequelaT45.1X5Adverse effect of antineoplastic and immunosuppressive drugsT45.1X5A..., initial encounterT45.1X5D..., subsequent encounterT45.1X5S..., sequelaT45.1X6Underdosing of antineoplastic and immunosuppressive drugsT45.1X6A..., initial encounterT45.1X6D..., subsequent encounterT45.1X6S..., sequela