Functional quadriplegia

Functional quadriplegia refers to the complete inability to move all four limbs due to severe debility, rather than a primary neurological injury. This condition typically arises from extreme weakness, pain, or other non-neurological causes that prevent voluntary movement. Patients are often bedridden and require total assistance for all activities of daily living.

This code is appropriate for patients experiencing a profound loss of mobility in all four extremities where no underlying neurological lesion or spinal cord injury is identified as the cause. Documentation should clearly indicate "functional quadriplegia" or describe severe, non-neurological immobility affecting all limbs. It is commonly seen in end-stage debility, severe generalized weakness, or profound deconditioning.

• Differentiate carefully from neurological quadriplegia (G82.5-), which is an Excludes1 condition.
• Ensure documentation explicitly rules out a neurological etiology for the immobility.
• Do not code with frailty NOS (R54) or immobility syndrome (M62.3) as these are Excludes1 conditions.