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G91.4Hydrocephalus in diseases classified elsewhere

ICD-10-CM billable/specific code — part of Other disorders of the nervous system (G89-G99)

Code Details

BillableYes
ChapterChapter 6: Diseases of the nervous system (G00-G99)
SectionOther disorders of the nervous system (G89-G99)
Parent codeG91 — Hydrocephalus

Coding Notes

Excludes1 (never code both together)

  • hydrocephalus due to congenital toxoplasmosis (P37.1)

Code First

  • underlying condition, such as:
  • congenital syphilis (A50.4-)
  • neoplasm (C00-D49)
  • plasminogen deficiency (E88.02)
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