Patient presents with complaints consistent with left foot drop, characterized by difficulty lifting the front part of the left foot.  This results in a steppage gait, with the patient exhibiting high knee flexion during ambulation to avoid dragging the toes.  On physical examination, weakness of left ankle dorsiflexion and eversion is noted.  Assessment reveals diminished sensation over the dorsum of the left foot and lateral lower leg.  Differential diagnosis includes peroneal nerve palsy, common peroneal neuropathy, L5 radiculopathy, sciatic neuropathy, and peripheral neuropathy.  The patient reports no recent trauma or prolonged compression to the affected area.  Neurological examination demonstrates reduced deep tendon reflexes in the left ankle.  Further investigation may include electromyography and nerve conduction studies to assess for peripheral nerve dysfunction.  Initial treatment plan includes ankle-foot orthosis to improve gait mechanics and prevent falls.  Referral to physical therapy for gait training and strengthening exercises is warranted.  Patient education on home safety measures and fall prevention strategies provided.  Follow-up scheduled to monitor symptom progression and treatment efficacy.  ICD-10 code G54.7, Peroneal nerve palsy, is considered pending further diagnostic testing.  CPT codes for the evaluation and management visit, electromyography, and physical therapy will be documented based on the services provided.