ICD-10-CM > S00-T88 > T51-T65 > T56 > T56.4 > T56.4X > T56.4X2 T56.4X2 Toxic effect of copper and its compounds, intentional self-harm Non-Billable/Non-Specific Codes T56.4X2A..., initial encounterT56.4X2D..., subsequent encounterT56.4X2S..., sequela