Question: Missouri Subscriber Answer: You should sequence the external cause E code before the abuse E code. The first E code should always represent the most serious diagnosis due to the external cause. Then, E codes for adult and child abuse take priority. Report the following injury codes: • 943.21 (Burns of upper limb, except wrist and hand; blisters, epidermal loss [second degree]; forearm) for the second-degree burn • 995.54 (Child maltreatment syndrome; child physical abuse) for the child physical abuse. Add E codes to identify the nature of the abuse and the perpetrator: • E968.3 (Assault by other and unspecified means; hot liquid) to indicate the burn's external cause • E967.0 (Perpetrator of child and adult abuse; by father, stepfather, or boyfriend) for the abuse.