G23.0

✓ Billable

Hallervorden-Spatz disease

Diseases of the nervous system (G00-G99)

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Also Known As

Pigmentary pallidal degeneration

⚠️ Excludes2

inherited

Rules inherited from parent codes.

G23

• multi-system degeneration of the autonomic nervous system (G90.3)

Clinical Description

ICD-10-CM code G23.0 represents hallervorden-spatz disease. This code falls under the Diseases of the nervous system (G00-G99) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 5-character code at the 4th level of specificity. This is the most specific code available in this subcategory.

Frequently Asked Questions

What is ICD-10 code G23.0?

ICD-10-CM code G23.0 is "Hallervorden-Spatz disease". It belongs to the category: Diseases of the nervous system (G00-G99).

Is G23.0 a billable ICD-10 code?

Yes, G23.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Can G23.0 be coded with other codes?

G23.0 has 1 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in G23

Other codes in the same category that may be relevant for differential coding:

G23.1Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]G23.2Striatonigral degeneration G23.3Hypomyelination with atrophy of the basal ganglia and cerebellum G23.8Other specified degenerative diseases of basal ganglia G23.9Degenerative disease of basal ganglia, unspecified

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Code Information

CodeG23.0

BillableYes

ParentG23

CategoryDiseases of the nervous system (G00-G99)

Excludes10 rule(s)

Excludes21 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)