T59.6X - Toxic effect of hydrogen sulfide T59.6 - Toxic effect of hydrogen sulfide T59.6X - Toxic effect of hydrogen sulfide T59.6X1 - Toxic effect of hydrogen sulfide, accidental (unintentional) T59.6X2 - Toxic effect of hydrogen sulfide, intentional self-harm T59.6X3 - Toxic effect of hydrogen sulfide, assault T59.6X4 - Toxic effect of hydrogen sulfide, undetermined