Hereditary spastic paraplegia

This code identifies a group of inherited neurological disorders characterized by progressive spasticity and weakness, primarily affecting the lower limbs. It results from degeneration of the longest nerve fibers in the spinal cord, leading to gait disturbances and muscle stiffness.

Assign this code when documentation confirms a diagnosis of hereditary spastic paraplegia, often presenting with a slow, progressive spastic gait, hyperreflexia, and extensor plantar responses. This diagnosis is typically made based on clinical findings, family history, and sometimes genetic testing.

• Ensure documentation specifies "hereditary" to differentiate from acquired spastic paraplegia.
• Look for associated neurological symptoms that may require additional coding, such as ataxia or peripheral neuropathy.
• Do not confuse with cerebral palsy, which is a non-progressive disorder of movement and posture.