G58.9 Mononeuropathy, unspecified

Billable ICD-10-CM code, FY2026.

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 355.9 Mononeuritis of unspecified site (approximate)

Code annotations containing back-references to G58.9

Back-references to G58

• Type 1 Excludes: M79.2 Neuralgia and neuritis, unspecified ("mononeuropathies (G56-G58)")

Diagnosis Index entries for G58.9

• Atrophy, atrophic (of) › muscle, muscular (diffuse) (general) (idiopathic) (primary) › neuritic
• Compression › nerve
• Disorder (of) › nerve
• Irritation › spinal (cord) (traumatic) › nerve
• Lesion (s) (nontraumatic) › nerve
• Mononeuritis
• Mononeuropathy
• Neuronitis
• Neuropathy, neuropathic › entrapment
• Palsy › nerve
• Paralysis, paralytic (complete) (incomplete) › atrophic
• Paralysis, paralytic (complete) (incomplete) › muscle, muscular NEC › due to nerve lesion

Nearby codes

• G58 Other mononeuropathies
• G58.0 Intercostal neuropathy
• G58.7 Mononeuritis multiplex
• G58.8 Other specified mononeuropathies
• G58.9 Mononeuropathy, unspecified (this code)