ICD-10 choices include etiology and manifestation. ICD-9 requires you to report two diagnosis codes for patients with diabetic polyneuropathy: one for the underlying diabetes etiology and the other for manifestation. That approach will change when ICD-10 is introduced in October 2013 and you narrow your reports to only one code. You currently report diabetic polyneuropathy with the diabetes etiology code 250.6x (Diabetes with neurological manifestations) and 357.2 (Polyneuropathy in diabetes). ICD-10 difference: Tip: