ICD-10 I67.1
Billable / SpecificCerebral aneurysm, nonruptured
About ICD-10-CM I67.1
ICD-10-CM code I67.1 represents Cerebral aneurysm, nonruptured. This is a billable/specific code in the Circulatory System chapter (block I67). The 2026 edition of ICD-10-CM I67.1 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under I67.1. Per CMS ICD-10-CM Tabular 2026.
- Cerebral aneurysm NOS
- Cerebral arteriovenous fistula, acquired
- Internal carotid artery aneurysm, intracranial portion
- Internal carotid artery aneurysm, NOS
Type 1 Excludes
Pure excludes, these codes can never be coded together with I67.1. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- congenital cerebral aneurysm, nonruptured (Q28.-)
- ruptured cerebral aneurysm (I60.7)
Medicare LCD Coverage for I67.1
Local Coverage Determinations (LCDs) from CMS MACs that list I67.1 as a covered diagnosis.
Showing top 10 of 274 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I67.1.
1 Aetna
5 Medicare
CPT Codes Commonly Billed with I67.1
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 I67.1 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 |
|---|---|---|
| I67.1 | 4373 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To I67.1
Other codes in section I60-I69 (Cerebrovascular diseases).
ICD-10 I67.1, Billing FAQ
Is ICD-10 code I67.1 billable? +
Yes, I67.1 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 I67.1? +
ICD-10 I67.1 includes: Cerebral aneurysm NOS; Cerebral arteriovenous fistula, acquired; Internal carotid artery aneurysm, intracranial portion, and 1 more clinical synonyms.
What codes are Type 1 Excludes for I67.1? +
Type 1 Excludes (never code together with I67.1): congenital cerebral aneurysm, nonruptured (Q28.-); ruptured cerebral aneurysm (I60.7)
What ICD-9 codes does I67.1 map to? +
Per CMS GEMs, I67.1 maps to ICD-9 codes: 4373. 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 May 31, 2026.
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