ICD-10-CM > S00-T88 > T51-T65 > T59 > T59.2 > T59.2X > T59.2X1 > T59.2X1A T59.2X1A Toxic effect of formaldehyde, accidental (unintentional), initial encounter Billable/Specific Copy Code Copy Description Applicable To Toxic effect of formaldehyde NOS