ICD-10-CM > S00-T88 > T51-T65 > T59 > T59.5 > T59.5X > T59.5X2 T59.5X2 Toxic effect of fluorine gas and hydrogen fluoride, intentional self-harm Non-Billable/Non-Specific Codes T59.5X2A..., initial encounterT59.5X2D..., subsequent encounterT59.5X2S..., sequela