ICD-10-CM > S00-T88 > T51-T65 > T59 > T59.0 > T59.0X > T59.0X2 T59.0X2 Toxic effect of nitrogen oxides, intentional self-harm Non-Billable/Non-Specific Codes T59.0X2A..., initial encounterT59.0X2D..., subsequent encounterT59.0X2S..., sequela