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

This code signifies the long-term effects or complications arising from a poisoning event involving keratolytics, keratoplastics, or other hair treatment products, where the intent of the poisoning (accidental, intentional self-harm, assault, or undetermined) could not be established. These sequelae can manifest as persistent dermatological issues, systemic organ damage, or other chronic health problems directly attributable to the initial toxic exposure.

Apply this code when documenting a patient presenting with a chronic condition or lasting consequence directly linked to a past poisoning by hair treatment drugs, and the original poisoning's intent was not determined. This is appropriate for follow-up encounters after the acute phase of the poisoning has resolved, but residual effects remain.

• Always sequence this sequela code after the code(s) for the specific residual condition(s) being treated.
• Ensure documentation clearly links the current condition to the past poisoning event and specifies the undetermined intent.
• Do not use for acute poisoning events; this code is exclusively for the long-term effects.