ICD-10-CM > S00-T88 > T51-T65 > T59 > T59.2 > T59.2X > T59.2X2 T59.2X2 Toxic effect of formaldehyde, intentional self-harm Non-Billable/Non-Specific Codes T59.2X2A..., initial encounterT59.2X2D..., subsequent encounterT59.2X2S..., sequela