ICD-10-CM 2027 diagnosis code

G58Other mononeuropathies

Not billable — use a more specific code

G58 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About G58

G58 is the ICD-10-CM diagnosis code for other mononeuropathies. It belongs to block G50-G59 (nerve, nerve root and plexus disorders) and chapter 6 (diseases of the nervous system). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: G58.0 (neuropathy), G58.7 (multiplex), G58.8 (mononeuropathies) and G58.9 (unspecified).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under G58

Notes that apply from higher levels

Instructions written at a parent level also apply to G58.

Broader instructions also apply from G50-G59 Nerve, nerve root and plexus disorders and Chapter 6: Diseases of the nervous system.

Codes whose notes reference G58

M79.2Excludes1

Code history

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2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about G58

Is G58 billable?: No. G58 is a header code. Report one of its more specific subcodes instead.