T56.4 - Toxic effects of copper and its compounds T56 - Toxic effect of metals T56.4 - Toxic effects of copper and its compounds T56.4X - Toxic effects of copper and its compounds T56.4X1 - Toxic effect of copper and its compounds, accidental (unintentional) T56.4X2 - Toxic effect of copper and its compounds, intentional self-harm T56.4X3 - Toxic effect of copper and its compounds, assault T56.4X4 - Toxic effect of copper and its compounds, undetermined