ICD-10-CM > S00-T88 > T51-T65 > T59 > T59.0 T59.0 Toxic effect of nitrogen oxides Non-Billable/Non-Specific Codes T59.0XToxic effect of nitrogen oxidesT59.0X1Toxic effect of nitrogen oxides, accidental (unintentional)T59.0X1A..., initial encounterT59.0X1D..., subsequent encounterT59.0X1S..., sequelaT59.0X2Toxic effect of nitrogen oxides, intentional self-harmT59.0X2A..., initial encounterT59.0X2D..., subsequent encounterT59.0X2S..., sequelaT59.0X3Toxic effect of nitrogen oxides, assaultT59.0X3A..., initial encounterT59.0X3D..., subsequent encounterT59.0X3S..., sequelaT59.0X4Toxic effect of nitrogen oxides, undeterminedT59.0X4A..., initial encounterT59.0X4D..., subsequent encounterT59.0X4S..., sequela