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ICD-10-CM category

G91: Hydrocephalus

7 subcodes · 7 billable · Look up any code with the ICD-10 search

Codes under G91 (Hydrocephalus). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
G91.0Communicating hydrocephalus✓
G91.1Obstructive hydrocephalus✓
G91.2(Idiopathic) normal pressure hydrocephalus✓
G91.3Post-traumatic hydrocephalus, unspecified✓
G91.4Hydrocephalus in diseases classified elsewhere✓
G91.8Other hydrocephalus✓
G91.9Hydrocephalus, unspecified✓

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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