ICD-10 Code G81.0 – Flaccid Hemiplegia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G81.0 – Flaccid hemiplegia
What it is
G81.0 identifies flaccid hemiplegia, a paralysis affecting one side of the body with reduced muscle tone. It is used when documentation specifies flaccid weakness rather than spastic or unspecified hemiplegia.
Clinical signs
Typical findings include marked weakness or paralysis on one side, decreased tone, and limited voluntary movement. Clinical features vary; refer to documentation for whether the hemiplegia is flaccid and for the affected side.
When to use this code
Use this code when the provider documents flaccid hemiplegia as the diagnosis, including cases described as post-stroke or due to another neurologic cause. You should also use it when the record clearly distinguishes flaccid hemiplegia from other forms of paresis or paralysis.
If laterality is documented elsewhere in the record, code it according to the applicable ICD-10-CM guidance. Check documentation when the chart only says hemiplegia or weakness without specifying flaccid type.
Do not use for
Do not use G81.0 for spastic hemiplegia, hemiparesis without paralysis, or generalized weakness. If the record does not confirm flaccid hemiplegia, check documentation.
Coding tip
Code the hemiplegia only when the provider clearly documents the flaccid type and any related cause or laterality in the medical record.