ICD-10 Code G81.91 – Hemiplegia, unspecified affecting right dominant side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G81.91 – Hemiplegia, unspecified affecting right dominant side
What it is
This code identifies complete or near-complete paralysis of one side of the body affecting the right dominant side. Use it when the record states hemiplegia but does not specify a cause.
Clinical signs
Typical findings include marked weakness or paralysis on the right side, with impaired arm and leg movement and reduced functional use. Clinical features vary; refer to documentation.
When to use this code
Use G81.91 when the provider documents hemiplegia on the right dominant side and does not name a more specific type or cause. It fits encounters focused on neurologic deficits, rehabilitation, or functional limitation. Check documentation if the note mentions stroke, trauma, or another underlying condition.
Do not use for
Do not use this code for hemiparesis, generalized weakness, or hemiplegia on the left side. If the record identifies a different cause or laterality, code that documented condition instead.
Coding tip
Confirm both laterality and dominance in the chart before assigning G81.91.