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Home/Diagnosis/ICD-10 Coding for Serotonin Syndrome

ICD-10 Coding for Serotonin Syndrome

G90.81
T43.221A

Complete ICD-10-CM coding and documentation guide for icd-10 coding for serotonin syndrome includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Serotonin Toxicity
Serotonin Storm
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Key Information: ICD-10 Coding for Serotonin Syndrome

Essential facts and insights about ICD-10 Coding for Serotonin Syndrome

Use ICD-10 code G90.81 for serotonin syndrome, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Serotonin Syndrome

Billable Code
G90.81
Billable

Diagnostic Criteria

  • • Presence of Hunter Criteria symptoms and serotonergic agent exposure

Applicable To

  • • Serotonin toxicity
  • • Serotonin storm

Important Notes

  • • Ensure documentation includes specific symptoms and drug exposure.

Poisoning by selective serotonin reuptake inhibitors, accidental

Billable Code
T43.221A
Billable

Diagnostic Criteria

  • • Documentation of SSRI overdose
Ancillary Codes

Additional codes that may be used with this diagnosis

R56.9

Unspecified convulsions

Use to document seizures as a manifestation of serotonin syndrome.

Frequently Asked Questions

What is the ICD-10 code for serotonin syndrome?

The ICD-10 code for serotonin syndrome is G90.81, effective FY 2025. It should be used with appropriate sequencing of poisoning or adverse effect codes.

How do you document serotonin syndrome?

Document serotonin syndrome by including specific symptoms, drug exposure, and meeting Hunter Criteria. Use templates to ensure comprehensive documentation.

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Applicable To

  • • SSRI overdose

Important Notes

  • • Ensure overdose is documented as accidental.