Toxic Effects

When a harmful substance is ingested or comes in contact with a person, this is classified as a toxic effect. The toxic effect codes are in categories T51-T65. When coding a toxic effect, assign the toxic effect code first, followed by codes for all associated manifestations of the toxic effect. Toxic effect codes have an associated intent: accidental, intentional self-harm, assault and undetermined.

For Sequela (Late Effects) see Section I.B.10. Sequela