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G31.0

⚠ Non-billable (Header)

Frontotemporal dementia

Diseases of the nervous system (G00-G99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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⚠️ Excludes2

inherited from G31

Rules from parent category G31: Other degenerative diseases of nervous system, not elsewhere classified

  • • Reye's syndrome (G93.7)

📋 Code Instructions

from G31
  • • code, if applicable, for codes G31.0-G31.83, G31.85-G31.9, to identify:
  • • dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
  • • dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
  • • dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3)
  • • dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)
  • • dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)
  • • mild neurocognitive disorder due to known physiological condition (F06.7-)

Child Codes (2)

G31.01Pick's diseaseG31.09Other frontotemporal neurocognitive disorder

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Code Information

CodeG31.0
BillableNo — Header code
ParentG31
CategoryDiseases of the nervous system (G00-G99)
Excludes10 rule(s)
Excludes21 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)