ICD-10-CM > S00-T88 > T36-T50 > T42 > T42.8 > T42.8X > T42.8X1 T42.8X1 Poisoning by antiparkinsonism drugs and other central muscle-tone depressants, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by antiparkinsonism drugs and other central muscle-tone depressants NOS Codes T42.8X1A..., initial encounterT42.8X1D..., subsequent encounterT42.8X1S..., sequela