G52 vs H47.0

G52 (Disorders of other cranial nerves) compared with H47.0 (Disorders of optic nerve, not elsewhere classified), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. G52 carries an Excludes2 note covering H47.0: “disorders of optic [2nd] nerve (H46, H47.0)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

	G52Disorders of other cranial nerves	H47.0Disorders of optic nerve, not elsewhere classified
Billing status	Non-billable header Report instead: G52.0, G52.1, G52.2, G52.3, G52.7	Non-billable header Report instead: H47.011, H47.012, H47.013, H47.019, H47.021
Classification	G00-G99 — Diseases of the Nervous System (G00-G99)	H00-H59 — Diseases of the Eye and Adnexa (H00-H59)
Definition	Disorders of other cranial nerves is a non-billable ICD-10-CM category code (G52).	Disorders of optic nerve, not elsewhere classified is a non-billable ICD-10-CM category code (H47.0).

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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources