E11.41

HCC Category Mapping

What This Code Means

Type 2 diabetes with damage to a single nerve (mononeuropathy), commonly affecting the hands, feet, or face. This causes weakness or pain in the affected area.

Coding Tips

• •Document which specific nerve is affected when possible to support medical necessity and treatment planning
• •Mononeuropathy is typically less extensive than polyneuropathy and affects one nerve distribution

Clinical Significance

Type 2 diabetes mellitus with diabetic mononeuropathy indicates damage to a single peripheral nerve from diabetic microvascular disease. Common presentations include carpal tunnel syndrome, cranial nerve palsies (particularly third nerve palsy causing diplopia), or femoral neuropathy. Unlike polyneuropathy, mononeuropathy typically presents with focal weakness or sensory loss in a specific nerve distribution and may have a more acute onset.

Documentation Requirements

• ✓Documentation must specify mononeuropathy as a complication of Type 2 diabetes, identifying the affected nerve when possible.
• ✓Neurological examination documenting the specific nerve distribution of deficits, electromyography/nerve conduction study results, and treatment plan should be recorded.
• ✓The provider must distinguish this from compression neuropathy or other non-diabetic causes.

Commonly Confused Codes