ICD-10 Code I69.933 – Monoplegia of upper limb following unspecified cerebrovascular disease affecting right non-dominant side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.933 – Monoplegia of upper limb following unspecified cerebrovascular disease affecting right non-dominant side
What it is
I69.933 identifies residual one-sided arm weakness or paralysis after an unspecified cerebrovascular disease. The code specifies the right non-dominant upper limb and reflects a late effect, not an active stroke.
Clinical signs
Typical findings include persistent loss of strength, limited arm movement, or flaccid paralysis affecting one upper limb. Clinical features vary; refer to documentation for laterality, dominance, and whether the deficit is complete or partial.
When to use this code
Use this code when the record documents monoplegia of the right non-dominant arm as a residual effect of a prior unspecified cerebrovascular disease. The stroke event is no longer acute, and the ongoing deficit is the reason for care.
Code from the aftercare or sequela documentation only when the provider links the arm deficit to the past cerebrovascular disease. Check documentation if dominance or laterality is unclear.
Do not use for
Do not use this code for an acute stroke, transient ischemic attack, or generalized hemiplegia. Also avoid it if the chart does not clearly identify the right non-dominant upper limb.
Coding tip
Verify the sequela relationship and the patient’s dominant side before assigning I69.933.