ICD-10 G93.0
Billable / SpecificCerebral cysts
About ICD-10-CM G93.0
ICD-10-CM code G93.0 represents Cerebral cysts. This is a billable/specific code in the Nervous System chapter (block G93). The 2026 edition of ICD-10-CM G93.0 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under G93.0. Per CMS ICD-10-CM Tabular 2026.
- Arachnoid cyst
- Porencephalic cyst, acquired
Type 1 Excludes
Pure excludes, these codes can never be coded together with G93.0. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- acquired periventricular cysts of newborn (P91.1)
- congenital cerebral cysts (Q04.6)
Medicare LCD Coverage for G93.0
Local Coverage Determinations (LCDs) from CMS MACs that list G93.0 as a covered diagnosis.
Showing top 10 of 68 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G93.0.
3 Medicare
CPT Codes Commonly Billed with G93.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert G93.0 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| G93.0 | 3480 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G93.0
Other codes in section G89-G99 (Other disorders of the nervous system).
ICD-10 G93.0, Billing FAQ
Is ICD-10 code G93.0 billable? +
Yes, G93.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to G93.0? +
ICD-10 G93.0 includes: Arachnoid cyst; Porencephalic cyst, acquired.
What codes are Type 1 Excludes for G93.0? +
Type 1 Excludes (never code together with G93.0): acquired periventricular cysts of newborn (P91.1); congenital cerebral cysts (Q04.6)
What ICD-9 codes does G93.0 map to? +
Per CMS GEMs, G93.0 maps to ICD-9 codes: 3480. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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