ICD-10 Code G83.9 – Paralytic syndrome, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G83.9 – Paralytic syndrome, unspecified
What it is
G83.9 is used for a paralytic syndrome when the documentation does not identify a more specific type or cause. It indicates loss or impairment of voluntary movement, but the exact pattern is not specified.
Clinical signs
Clinical features vary; refer to documentation. You may see weakness or paralysis affecting one or more body regions, with the cause, distribution, or laterality not clearly stated in the record.
When to use this code
Use this code when the provider documents a paralytic syndrome but does not name a more specific paralytic disorder. It is appropriate when the record lacks enough detail for a more precise code. If the note identifies a specific neurologic cause, code that condition instead.
Do not use for
Do not use G83.9 when documentation supports a more specific paralytic syndrome code or a clearly identified underlying diagnosis. Do not use it for transient weakness or nonspecific symptoms without a documented paralytic syndrome.
Coding tip
Check documentation for the exact paralysis type, body site, and cause before defaulting to G83.9.