ICD-10-CM > S00-T88 > T51-T65 > T63 > T63.0 > T63.01 > T63.012 T63.012 Toxic effect of rattlesnake venom, intentional self-harm Non-Billable/Non-Specific Codes T63.012A..., initial encounterT63.012D..., subsequent encounterT63.012S..., sequela