G57.9 Unspecified mononeuropathy of lower limb
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The ICD-10-CM code for Unspecified mononeuropathy of lower limb is G57.9 (FY2026). It is a non-billable category code — select a more specific code below for claims.
Classification
- Section
- G50-G59: Nerve, nerve root and plexus disorders (G50-G59)
- Category G57
- 51 codes (40 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to G57.9:
- Paralysis, paralytic (complete) (incomplete) › ankle
- Paralysis, paralytic (complete) (incomplete) › quadriceps
- Mononeuropathy › lower limb
- Paralysis, paralytic (complete) (incomplete) › abductor, lower extremity
- Neuropathy, neuropathic › lower extremity
- Neuropathy, neuropathic › leg NEC
- Neuritis (rheumatoid) › ilioinguinal (nerve)
- Mononeuritis › lower limb
Official Coding Guidelines
Dominant/nondominant side (TOC entry)a. Dominant/nondominant side ................................................................................................. 45
Pain - Category G89 (TOC entry)b. Pain - Category G89.............................................................................................................. 45
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026
References
Cite This Page
Reference G57.9 with the canonical source and edition:
G57.9 — Unspecified mononeuropathy of lower limb. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/G57.9
Canonical URL: https://icd10codingpro.com/codes/G57.9