ICD-10-CM Code G90.81

Official Description

Serotonin syndrome

Serotonin toxicity

Code First: poisoning due to drug or toxin, such as:
linezolid (T36.8X- with sixth character 1-4)
monoamine oxidase inhibitors (T43.1X with sixth character 1-4)
selective serotonin and norepinephrine reuptake inhibitors [SSNRI] (T43.21 with sixth character 1-4)
selective serotonin reuptake inhibitors [SSRI] (T43.22 with sixth character 1-4)

Use additionalcode for adverse effect, if applicable, to identify drug, such as:
linezolid (T36.8X5)
monoamine oxidase inhibitors (T43.1X5)
selective serotonin and norepinephrine reuptake inhibitors [SSNRI] (T43.215)
selective serotonin reuptake inhibitors [SSRI] (T43.225)

Use additionalcode, if applicable, to identify:
disseminated intravascular coagulation (D65)
hypertensive crisis (I16.-)
metabolic acidosis (E87.2-)
shock, not elsewhere classified (R57.-)
toxic encephalopathy (G92.-)
ventricular tachycardia (I47.2-)