ICD-10 Code G83.13 – Monoplegia of lower limb affecting right nondominant side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G83.13 – Monoplegia of lower limb affecting right nondominant side
What it is
G83.13 identifies monoplegia limited to the right lower limb in a nondominant side pattern. Use it when documentation states paralysis or severe weakness affecting only that leg.
Clinical signs
Findings may include marked loss of voluntary movement, reduced strength, and impaired walking or weight bearing in the right leg. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider clearly documents monoplegia of the right lower extremity and specifies the nondominant side. It fits neurologic deficits from conditions such as stroke, spinal cord injury, or other documented causes when the record supports isolated leg involvement.
Do not use for
Do not use it for generalized weakness, hemiplegia, paraplegia, or unspecified limb paralysis. Check documentation if the record does not confirm the right nondominant lower limb.
Coding tip
Confirm both laterality and dominance in the note before assigning G83.13.