ICD-10 Code G83.24 – Monoplegia of upper limb affecting left nondominant side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G83.24 – Monoplegia of upper limb affecting left nondominant side
What it is
G83.24 identifies paralysis or severe weakness limited to the left upper limb in a patient whose left hand is not dominant. Use it when documentation specifies monoplegia affecting only that arm.
Clinical signs
Typical findings include marked loss of voluntary movement, reduced strength, and functional impairment in one upper limb. Clinical features vary; refer to documentation for laterality and dominance.
When to use this code
Use this code when the provider documents monoplegia of the left arm and states the patient is left nondominant. It fits neurologic deficits recorded as isolated upper-limb paralysis, weakness, or hemiplegic-like impairment limited to one arm. Check documentation if dominance is not clearly stated.
Do not use for
Do not use it for generalized weakness, hemiplegia, or paralysis affecting more than one limb. Do not assign it if the record does not support left nondominant side involvement.
Coding tip
Verify both laterality and hand dominance in the note before assigning G83.24.