ICD-10 Code I69.033 – Monoplegia of Upper Limb Following Nontraumatic Subarachnoid Hemorrhage Affecting Right Non-Dominant Side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.033 – Monoplegia of upper limb following nontraumatic subarachnoid hemorrhage affecting right non-dominant side
What it is
This code identifies one-sided paralysis or severe weakness of the upper limb as a late effect of a nontraumatic subarachnoid hemorrhage. Use it when the residual deficit is documented after the hemorrhage has occurred.
Clinical signs
Typical findings include marked loss of movement or strength in the right arm, with the right side documented as non-dominant. Clinical features vary; refer to documentation for whether the deficit is complete or partial.
When to use this code
Use this code when the record links the arm deficit to a prior nontraumatic subarachnoid hemorrhage and specifies the right non-dominant side. It is appropriate for chronic residual monoplegia, not the acute bleed itself. Check documentation if dominance or laterality is unclear.
Do not use for
Do not use this code for acute subarachnoid hemorrhage, generalized weakness, or monoplegia from another cause. Check documentation if the residual deficit is not clearly tied to the prior hemorrhage.
Coding tip
Confirm both the late-effect relationship and the documented side/dominance before assigning I69.033.