ICD-10-CM Code For Other Mononeuropathies: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group G58 includes focal peripheral nerve disorders referred to as other mononeuropathies, encompassing isolated entrapments, compressive neuropathies, traumatic nerve injuries, and other single-nerve dysfunctions not specified elsewhere. These ICD-10-CM diagnosis codes are used to document clinical scenarios involving localized sensory or motor deficits attributable to a single peripheral nerve, capturing extent, laterality, and specific nerve involvement when applicable. Accurate coding within the ICD-10-CM G58 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM G58: Other Mononeuropathies Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM G58) group covers focal peripheral nerve disorders not classified elsewhere, such as isolated entrapment or traumatic mononeuropathies. These diagnoses target peripheral nerves and present with sensory, motor, or mixed deficits in a single nerve distribution. Accurate coding ensures clinical records reflect the specific nerve involved and supports correct reimbursement for nerve-specific evaluation and treatment.

When to Use

Use a code from this group when the clinical documentation identifies a focal neuropathy affecting a single peripheral nerve and the condition is not better classified elsewhere. Select the code that specifies the nerve involved, laterality, and any associated features such as trauma or entrapment when documented.

ICD-10-CM Codes

4 rows

ICD-10-CM Code	Description
G58.0	Intercostal neuropathy
G58.7	Mononeuritis multiplex
G58.8	Other specified mononeuropathies
G58.9	Mononeuropathy, unspecified

DRG Codes

2 rows

DRG Code	Description
073	Cranial and Peripheral Nerve Disorders with MCC
074	Cranial and Peripheral Nerve Disorders without MCC

Typical Clinical Scenarios

An adult presents to the emergency department with sudden-onset severe burning pain, numbness, and weakness isolated to the distribution of the radial nerve after falling on an outstretched hand and sustaining an upper-arm fracture. Examination shows wrist drop and sensory loss over the dorsum of the hand consistent with an acute traumatic mononeuropathy; imaging confirms a humeral shaft fracture with suspected radial nerve contusion, so an other mononeuropathy code is assigned. Typical codes: G58.0, G58.8
A middle-aged patient with long-standing diabetes reports progressive numbness, tingling, and focal weakness localized to the peroneal nerve distribution over months, causing foot drop and frequent tripping; prior EMG/NCS demonstrates focal entrapment neuropathy without generalized polyneuropathy. This chronic focal peripheral nerve dysfunction related to compression and metabolic disease is coded as an other mononeuropathy when the presentation is isolated to a single named nerve. Typical codes: G58.8, G58.9
A patient seen in a neurology clinic after recent herpes zoster infection develops persistent sharp pain and localized sensory loss along a single cutaneous nerve distribution despite antiviral therapy; symptoms are limited to one nerve and interfere with rehabilitation after the acute infection, representing a post-infectious mononeuropathy. The visit documents a focal nerve disorder as a complication of the prior infection and receives an other mononeuropathy code. Typical codes: G58.7, G58.8

Related Codes

G50-DISORDERS-OF-TRIGEMINAL-NERVE

ICD-10-CM Code For Disorders Of Trigeminal Nerve: Group Overview

G51-FACIAL-NERVE-DISORDERS

ICD-10-CM Code For Facial Nerve Disorders: Group Overview

G52-DISORDERS-OF-OTHER-CRANIAL-NERVES

ICD-10-CM Code For Disorders Of Other Cranial Nerves: Group Overview

G53-CRANIAL-NERVE-DISORDERS

ICD-10-CM Code For Cranial Nerve Disorders In Diseases Classified Elsewhere: Group Overview

G54-NERVE-ROOT-AND-PLEXUS-DISORDERS

ICD-10-CM Code For Nerve Root And Plexus Disorders: Group Overview

G55-NERVE-ROOT-AND-PLEXUS-COMPRESSIONS

ICD-10-CM Code For Nerve Root And Plexus Compressions In Diseases Classified Elsewhere: Group Overview

G56-MONONEUROPATHIES-OF-UPPER-LIMB

ICD-10-CM Code For Mononeuropathies Of Upper Limb: Group Overview

G57-MONONEUROPATHIES-OF-LOWER-LIMB

ICD-10-CM Code For Mononeuropathies Of Lower Limb: Group Overview

G59-MONONEUROPATHY-IN-DISEASES

ICD-10-CM Code For Mononeuropathy In Diseases Classified Elsewhere: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

4 rows

ICD-10-CM Code	Description
G58.0	Intercostal neuropathy
G58.7	Mononeuritis multiplex
G58.8	Other specified mononeuropathies
G58.9	Mononeuropathy, unspecified

DRG Codes

2 rows

DRG Code	Description
073	Cranial and Peripheral Nerve Disorders with MCC
074	Cranial and Peripheral Nerve Disorders without MCC

Typical Clinical Scenarios

An adult presents to the emergency department with sudden-onset severe burning pain, numbness, and weakness isolated to the distribution of the radial nerve after falling on an outstretched hand and sustaining an upper-arm fracture. Examination shows wrist drop and sensory loss over the dorsum of the hand consistent with an acute traumatic mononeuropathy; imaging confirms a humeral shaft fracture with suspected radial nerve contusion, so an other mononeuropathy code is assigned. Typical codes: G58.0, G58.8
A middle-aged patient with long-standing diabetes reports progressive numbness, tingling, and focal weakness localized to the peroneal nerve distribution over months, causing foot drop and frequent tripping; prior EMG/NCS demonstrates focal entrapment neuropathy without generalized polyneuropathy. This chronic focal peripheral nerve dysfunction related to compression and metabolic disease is coded as an other mononeuropathy when the presentation is isolated to a single named nerve. Typical codes: G58.8, G58.9
A patient seen in a neurology clinic after recent herpes zoster infection develops persistent sharp pain and localized sensory loss along a single cutaneous nerve distribution despite antiviral therapy; symptoms are limited to one nerve and interfere with rehabilitation after the acute infection, representing a post-infectious mononeuropathy. The visit documents a focal nerve disorder as a complication of the prior infection and receives an other mononeuropathy code. Typical codes: G58.7, G58.8

Related Codes

G50-DISORDERS-OF-TRIGEMINAL-NERVE

ICD-10-CM Code For Disorders Of Trigeminal Nerve: Group Overview

G51-FACIAL-NERVE-DISORDERS

ICD-10-CM Code For Facial Nerve Disorders: Group Overview

G52-DISORDERS-OF-OTHER-CRANIAL-NERVES

ICD-10-CM Code For Disorders Of Other Cranial Nerves: Group Overview

G53-CRANIAL-NERVE-DISORDERS

ICD-10-CM Code For Cranial Nerve Disorders In Diseases Classified Elsewhere: Group Overview

G54-NERVE-ROOT-AND-PLEXUS-DISORDERS

ICD-10-CM Code For Nerve Root And Plexus Disorders: Group Overview

G55-NERVE-ROOT-AND-PLEXUS-COMPRESSIONS

ICD-10-CM Code For Nerve Root And Plexus Compressions In Diseases Classified Elsewhere: Group Overview

G56-MONONEUROPATHIES-OF-UPPER-LIMB

ICD-10-CM Code For Mononeuropathies Of Upper Limb: Group Overview

G57-MONONEUROPATHIES-OF-LOWER-LIMB

ICD-10-CM Code For Mononeuropathies Of Lower Limb: Group Overview

G59-MONONEUROPATHY-IN-DISEASES

ICD-10-CM Code For Mononeuropathy In Diseases Classified Elsewhere: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Other Mononeuropathies: Group Overview

Sign up for ICD-10-CM Code For Other Mononeuropathies: Group Overview policy alerts

ICD-10-CM G58: Other Mononeuropathies Overview

ICD-10-CM Code For Other Mononeuropathies: Group Overview

Sign up for ICD-10-CM Code For Other Mononeuropathies: Group Overview policy alerts

ICD-10-CM G58: Other Mononeuropathies Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which diagnoses are included in the ICD-10-CM G58 group?

What clinical presentations does G58 cover?

How does accurate coding within G58 affect reimbursement?

Which DRGs are related to the G58 group?

When should a coder select `G58.9` versus a specified G58 code?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which diagnoses are included in the ICD-10-CM G58 group?

What clinical presentations does G58 cover?

How does accurate coding within G58 affect reimbursement?

Which DRGs are related to the G58 group?

When should a coder select `G58.9` versus a specified G58 code?

References