ICD-10 Code G83.2 – Monoplegia of upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G83.2 – Monoplegia of upper limb
What it is
G83.2 identifies paralysis affecting one upper limb, such as one arm or hand, while the other limbs are not similarly involved. Use it when the record clearly documents monoplegia of an upper extremity.
Clinical signs
Typical findings include marked weakness or complete loss of voluntary movement in one upper limb, often with reduced functional use. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents monoplegia limited to the upper limb and the note does not support a more specific cause or site code. It may apply to residual paralysis, chronic neurologic deficit, or another recorded upper-extremity monoplegia diagnosis. Check documentation for laterality and underlying etiology.
Do not use for
Do not use G83.2 for generalized weakness, hemiplegia, or paralysis affecting both arms or the legs. If the chart describes a different neurologic disorder or a more specific condition, code that instead.
Coding tip
Verify that the documentation names monoplegia of the upper limb and supports any related cause or laterality before assigning G83.2.