ICD-10-CM > S00-T88 > T36-T50 > T42 > T42.8 > T42.8X T42.8X Poisoning by, adverse effect of and underdosing of antiparkinsonism drugs and other central muscle-tone depressants Non-Billable/Non-Specific Codes T42.8X1Poisoning by antiparkinsonism drugs and other central muscle-tone depressants, accidental (unintentional)T42.8X1A..., initial encounterT42.8X1D..., subsequent encounterT42.8X1S..., sequelaT42.8X2Poisoning by antiparkinsonism drugs and other central muscle-tone depressants, intentional self-harmT42.8X2A..., initial encounterT42.8X2D..., subsequent encounterT42.8X2S..., sequelaT42.8X3Poisoning by antiparkinsonism drugs and other central muscle-tone depressants, assaultT42.8X3A..., initial encounterT42.8X3D..., subsequent encounterT42.8X3S..., sequelaT42.8X4Poisoning by antiparkinsonism drugs and other central muscle-tone depressants, undeterminedT42.8X4A..., initial encounterT42.8X4D..., subsequent encounterT42.8X4S..., sequelaT42.8X5Adverse effect of antiparkinsonism drugs and other central muscle-tone depressantsT42.8X5A..., initial encounterT42.8X5D..., subsequent encounterT42.8X5S..., sequelaT42.8X6Underdosing of antiparkinsonism drugs and other central muscle-tone depressantsT42.8X6A..., initial encounterT42.8X6D..., subsequent encounterT42.8X6S..., sequela