ICD-10-CM > S00-T88 > T51-T65 > T52 > T52.4 > T52.4X > T52.4X4 T52.4X4 Toxic effect of ketones, undetermined Non-Billable/Non-Specific Codes T52.4X4A..., initial encounterT52.4X4D..., subsequent encounterT52.4X4S..., sequela