Patient presents with complaints consistent with sensorimotor polyneuropathy.  Symptoms include distal paresthesias, numbness, tingling, and burning sensations in the extremities, predominantly in a glove-and-stocking distribution.  The patient also reports muscle weakness, difficulty with balance, and occasional foot drop.  On neurological examination, diminished deep tendon reflexes are noted in the ankles and knees.  Vibratory sense and proprioception are reduced in the lower extremities.  Positive Romberg sign is observed.  The patient denies recent illness, significant trauma, or exposure to toxins.  Medical history includes type 2 diabetes mellitus, managed with metformin.  Family history is negative for neurological disorders.  Differential diagnosis includes diabetic neuropathy, peripheral neuropathy, alcoholic neuropathy, and vitamin B12 deficiency.  Initial laboratory workup will include a complete blood count (CBC), comprehensive metabolic panel (CMP), HbA1c, vitamin B12 levels, and serum protein electrophoresis (SPEP).  Nerve conduction studies (NCS) and electromyography (EMG) are scheduled to assess peripheral nerve function and confirm the diagnosis of sensorimotor polyneuropathy.  Preliminary diagnosis is sensorimotor polyneuropathy likely secondary to diabetic neuropathy.  Treatment plan includes optimizing diabetic control, pain management with gabapentin, and physical therapy for balance and strength training.  Patient education provided on foot care, fall prevention, and medication management.  Follow-up appointment scheduled in four weeks to review test results and assess treatment response.  ICD-10 code G62.9, Polyneuropathy, unspecified, is considered pending further investigation.  CPT codes for the NCS and EMG will be determined based on the specific tests performed.