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ICD-10-CM Code I67.1
Cerebral aneurysm, nonruptured

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

I67.1 is a billable ICD code used to specify a diagnosis of cerebral aneurysm, nonruptured. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code I671 is used to code Intracranial aneurysm

An intracranial aneurysm (also called cerebral or brain aneurysm) is a cerebrovascular disorder in which weakness in the wall of a cerebral artery or vein causes a localized dilation or ballooning of the blood vessel.

Specialty: Cardiology
MeSH Code: D002532
ICD 9 Code: 437.3

Aneurysm of the basilar artery, and the vertebral arteries.

Source: Wikipedia

Coding Notes for I67.1 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Cerebral aneurysm NOS
Cerebral arteriovenous fistula, acquired
Internal carotid artery aneurysm, intracranial portion
Internal carotid artery aneurysm, NOS
Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Congenital cerebral aneurysm, nonruptured - instead, use code Q28.-
Ruptured cerebral aneurysm - instead, use code I60.7

MS-DRG Mapping

  • DRG Group #091-093 - Other disorders of nervous system with MCC.
  • DRG Group #091-093 - Other disorders of nervous system with CC.
  • DRG Group #091-093 - Other disorders of nervous system without CC or MCC.

Related Concepts SNOMET-CT

  • Aneurysm of the vein of Galen (disorder)
  • Unruptured internal carotid bifurcation aneurysm (disorder)
  • Spontaneous caroticocavernous sinus fistula (disorder)

Coding Advice SNOMET-CT

  • Consider additional code to identify specific condition or disease


Cerebral aneurysm, nonruptured (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code I67.1 and a single ICD9 code, 437.3 is an approximate match for comparison and conversion purposes.

Parent Code: I67 - Other cerebrovascular diseases

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/I671