ICD-10 Code I69.039 – Monoplegia of Upper Limb Following Nontraumatic Subarachnoid Hemorrhage Affecting Unspecified Side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.039 – Monoplegia of upper limb following nontraumatic subarachnoid hemorrhage affecting unspecified side
What it is
This code identifies paralysis or severe weakness limited to one upper limb that remains after a nontraumatic subarachnoid hemorrhage. Use it when the affected side is not documented.
Clinical signs
Clinical features include loss of voluntary movement or marked weakness in one arm, often with reduced functional use. Clinical features vary; refer to documentation.
When to use this code
Use I69.039 when the record clearly links the monoplegia to a prior nontraumatic subarachnoid hemorrhage. The deficit should be a residual condition, not an acute event. Choose this code when the side is not specified in the documentation.
Do not use for
Do not use this code for acute subarachnoid hemorrhage or for monoplegia unrelated to a cerebrovascular event. Check documentation if the weakness is due to trauma or another neurologic cause.
Coding tip
Verify that the chart documents both the residual arm deficit and the prior nontraumatic subarachnoid hemorrhage before assigning I69.039.