Disorders of other cranial nerves (G52) ICD-10-CM
The G52 code range covers disorders of other cranial nerves with 8 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the G52 Range 8 codes · 7 billable
- G52 Disorders of other cranial nervesNon-billable
- G52.0 Disorders of olfactory nerve
- G52.1 Disorders of glossopharyngeal nerve
- G52.2 Disorders of vagus nerve
- G52.3 Disorders of hypoglossal nerve
- G52.7 Disorders of multiple cranial nerves
- G52.8 Disorders of other specified cranial nerves
- G52.9 Cranial nerve disorder, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the G52 range.
Cranial Nerve Diseases
Disorders of one or more of the twelve cranial nerves. With the exception of the optic and olfactory nerves, this includes disorders of the brain stem nuclei from which the cranial nerves originate or terminate.
About the G52 Code Range
These disorders affect individual cranial nerves or multiple cranial nerves.
The subdivisions identify disorders of the olfactory nerve (G52.0), glossopharyngeal nerve (G52.1), vagus nerve (G52.2), and hypoglossal nerve (G52.3). Separate codes describe disorders of multiple cranial nerves (G52.7), other specified cranial nerves (G52.8), or an unspecified cranial nerve disorder (G52.9).
Questions About This Page
How many billable codes are in the G52 range?
Of the 8 codes in this range, 7 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the G52 range classify?
The range classifies disorders of other cranial nerves. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
