ICD-10 Code G83.30 – Monoplegia, unspecified affecting unspecified side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G83.30 – Monoplegia, unspecified affecting unspecified side
What it is
G83.30 identifies monoplegia, meaning paralysis affecting one limb only. The side and exact limb are not specified in the documentation, so you should code only what is documented.
Clinical signs
Typical findings include marked weakness or complete loss of movement in one arm or one leg. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents monoplegia but does not identify whether it affects the right or left side. It also fits records that describe paralysis of a single limb without further detail. If the note later specifies the side, choose the more specific code.
Do not use for
Do not use this code for hemiplegia, paraplegia, or generalized weakness. Check documentation if the condition is described as paresis rather than complete paralysis.
Coding tip
Look for laterality in the assessment, exam, or problem list before assigning this unspecified code.