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G31Oth degenerative diseases of nervous system, NEC

ICD-10-CM category (non-billable header) code — part of Other degenerative diseases of the nervous system (G30-G32)

Code Details

Full descriptionOther degenerative diseases of nervous system, not elsewhere classified
BillableNo — use a more specific child code
ChapterChapter 6: Diseases of the nervous system (G00-G99)
SectionOther degenerative diseases of the nervous system (G30-G32)

Coding Notes

Excludes2 (not part of this condition — may code both)

  • Reye's syndrome (G93.7)

Use Additional Code

  • 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-)

Subcategories (5)

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