G59 ICD-10-CM Code: Mononeuropathy in diseases classified elsewhere
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
G59Mononeuropathy in diseases classified elsewhere
ICD-10-CM diagnosis code · United States clinical modification
Where G59 sits
- 1
Chapter 6
Diseases of the nervous system (G00-G99)
- 2
Section
Nerve, nerve root and plexus disorders (G50-G59)
- 3
Category G59
Mononeuropathy in diseases classified elsewhere
- 4
Code G59
Mononeuropathy in diseases classified elsewhere
Notes for this code
Inclusion terms
No inclusion terms are listed for G59.
Code first
- underlying disease
Use additional code
No “use additional code” instruction is listed for G59.
Excludes1
Conditions that should not be reported together with this code.
- diabetic mononeuropathy (E08-E13 with .41)
- syphilitic nerve paralysis (A52.19)
- syphilitic neuritis (A52.15)
- tuberculous mononeuropathy (A17.83)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for G59.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code G59 mean?
G59 is the FY 2027 U.S. ICD-10-CM code for “Mononeuropathy in diseases classified elsewhere.”
Is G59 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, G59 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is G59 located in ICD-10-CM?
G59 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Nerve, nerve root and plexus disorders (G50-G59) (G50–G59), under category G59, Mononeuropathy in diseases classified elsewhere.
What coding notes are listed for G59?
No inclusion terms are listed for G59 in this reference record. Code-first instructions: underlying disease. Excludes1 notes: diabetic mononeuropathy (E08-E13 with .41); syphilitic nerve paralysis (A52.19); syphilitic neuritis (A52.15); tuberculous mononeuropathy (A17.83). No Excludes2 note is listed.