ICD-10-CM > S00-T88 > T51-T65 > T63 > T63.0 > T63.00 > T63.001 T63.001 Toxic effect of unspecified snake venom, accidental (unintentional) Non-Billable/Non-Specific Applicable To Toxic effect of unspecified snake venom NOS Codes T63.001A..., initial encounterT63.001D..., subsequent encounterT63.001S..., sequela