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ICD-10-CM Diagnosis Code G90.81

Effective Date: 10/01/2024 To 09/30/2025

Serotonin syndrome

CMS-HCC-V24 CMS-HCC-V28 RxHCC Age Gender Maternity Acute or Chronic MCC
-- -- -- -- -- -- Acute No
Applicable To for G90.81:
  • Serotonin toxicity

Use Additional for G90.81:
  • code 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)

  • code, 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-)

Back-references to G90.81
  • Syndrome see also Disease
    • serotonin G90.81
    • Chapter, Section and Diagnosis Prefix for G90.81
        G00-G99 :

        Diseases of the nervous system

        G89-G99 :

        Other disorders of the nervous system

        G90 :

        Disorders of autonomic nervous system