Tox eff of corrosv alkalis and alk-like substnc, asslt, init

This code signifies a patient presenting with adverse health effects resulting from intentional exposure to corrosive alkaline or alkali-like substances. The injury is non-accidental, inflicted by another party, and the patient is in the acute phase of treatment for the toxic effects.

Apply this code when documenting cases of chemical burns or systemic toxicity caused by substances like lye, drain cleaner, or strong detergents, where the exposure is determined to be an act of assault. It is appropriate for the initial hospital visit or first encounter with a healthcare provider for this specific injury.

• Ensure documentation clearly states the toxic effect is due to a corrosive alkali and explicitly identifies the incident as an assault.
• Confirm this is the initial encounter for the injury; subsequent care would use a different seventh character.
• Always code the specific toxic effect (e.g., chemical burn, esophageal stricture) in addition to this external cause code.