[…] arthropathy E11.610 Type 2 diabetes mellitus with diabetic neuropathic arthropathy E11.618 Type 2 diabetes mellitus with other diabetic arthropathy E11.62 Type 2 diabetes mellitus with skin complications E11.620 Type 2 diabetes mellitus with diabetic dermatitis [icd10data.com]

Retinal damage (from microangiopathy) makes it the most common cause of blindness among non-elderly adults in the US. [en.wikipedia.org]

In diabetic retinopathy the end-result is often blindness due to irreversible retinal damage. [stemcellreference.com]