Poisoning by expectorants, undetermined, subs encntr

This code signifies a poisoning event involving an expectorant medication where the intent (e.g., accidental, intentional self-harm, assault) cannot be determined. It specifically applies to encounters occurring after the initial treatment of the poisoning, such as follow-up visits or ongoing management of complications.

Use this code for patients presenting for follow-up care, monitoring of adverse effects, or management of residual symptoms related to an expectorant poisoning. The original poisoning event must have had an undetermined intent, and this code is appropriate for any encounter subsequent to the initial acute treatment.

• Always assign an additional code for any associated adverse effects or manifestations of the poisoning.
• Ensure documentation clearly supports the "undetermined" intent and that the encounter is not the initial treatment.
• Distinguish from initial encounter (A), subsequent encounter (D), and sequela (S) codes based on the patient's current stage of care.