G52.9 Cranial nerve disorder, unspecified

Billable ICD-10-CM code, FY2026.

Applies from G52 Disorders of other cranial nerves

Excludes2 (not included here)

• disorders of acoustic [8th] nerve (H93.3)
• disorders of optic [2nd] nerve (H46, H47.0)
• paralytic strabismus due to nerve palsy (H49.0-H49.2)

MS-DRG index

Defines the logic of DRG(s) 073-074 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 352.9 Unspecified disorder of cranial nerves (approximate)

Diagnosis Index entries for G52.9

• Atrophy, atrophic (of) › nerve › cranial
• Compression › cranial nerve
• Disease, diseased › cranial nerve NOS
• Disorder (of) › nerve › cranial
• Lesion (s) (nontraumatic) › cranial nerve
• Lesion (s) (nontraumatic) › cranial nerve › eleventh
• Paralysis, paralytic (complete) (incomplete) › cranial or cerebral nerve
• Paralysis, paralytic (complete) (incomplete) › nerve › cranial or cerebral

Nearby codes

• 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 (this code)