Poisn by selective serotonin reuptake inhibtr, undet, init

This code signifies an adverse event resulting from exposure to selective serotonin reuptake inhibitors (SSRIs) where the intent of the poisoning (e.g., accidental, intentional self-harm, assault) cannot be determined. The patient is in the initial phase of treatment for the toxic effects of the SSRI.

This code is appropriate when a patient presents with signs and symptoms of SSRI toxicity, and the medical record does not clearly document whether the exposure was accidental, intentional, or due to assault. It is used for the first encounter where the poisoning is being evaluated and treated.

• Always assign an additional code for the specific SSRI involved, if known.
• Do not use this code if the intent of the poisoning is clearly documented as accidental, intentional self-harm, or assault; instead, select the appropriate intent code.
• Ensure the "A" for initial encounter is accurate; subsequent encounters for the same poisoning would use "D" or "S" as the 7th character.