Tox eff of corrosv alkalis and alk-like substnc, acc, sqla

This code signifies the long-term or residual effects resulting from an accidental exposure to corrosive alkaline substances. These sequelae can include chronic pain, scarring, strictures, organ damage, or functional impairments that persist after the initial acute injury has healed.

Apply this code when documenting conditions that are a direct consequence of a past, unintentional toxic exposure to corrosive alkalis or alkali-like substances. This is used for follow-up care or treatment of permanent damage, not for the initial acute poisoning event.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., esophageal stricture, skin scar).
• Ensure documentation clearly links the current condition to a past accidental corrosive alkali exposure.
• Do not use this code for acute poisoning; refer to the appropriate acute toxic effect codes for initial encounters.