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G90.2

✓ Billable

Horner's syndrome

Diseases of the nervous system (G00-G99)

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Also Known As

Bernard(-Horner) syndromeCervical sympathetic dystrophy or paralysis

❌ Excludes1

inherited from G90

Rules from parent category G90: Disorders of autonomic nervous system

  • • dysfunction of the autonomic nervous system due to alcohol (G31.2)

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Code Information

CodeG90.2
BillableYes
ParentG90
CategoryDiseases of the nervous system (G00-G99)
Excludes11 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)