Poisn by keratolyt/keratplst/hair trmt drug, acc, sequela

This code signifies a long-term or residual effect stemming from an accidental poisoning by substances used to treat skin (keratolytics, keratoplastics) or hair. These sequelae are the lasting health problems that persist after the initial acute phase of the poisoning has resolved.

Apply this code when documenting a patient presenting with a chronic condition or permanent damage directly attributable to a past, unintentional exposure to hair treatment products or skin-peeling agents. Examples include persistent skin lesions, scarring, or organ damage that developed as a consequence of the original poisoning event.

• This "S" seventh character indicates a sequela, meaning the acute phase of the poisoning has passed.
• Always code the specific nature of the sequela first, followed by this code to indicate its etiology.
• Ensure documentation clearly links the current condition to a past accidental poisoning by these specific agents.