E10.42

HCC Category Mapping

What This Code Means

Type 1 diabetes with damage to multiple nerves throughout the body, typically causing numbness and weakness in the feet and hands.

Coding Tips

• •This is the most common form of diabetic neuropathy
• •Document the distribution and severity of symptoms when available for clinical clarity

Clinical Significance

Type 1 diabetes mellitus with diabetic polyneuropathy is the most prevalent chronic complication of long-standing Type 1 diabetes, affecting over 50% of patients with disease duration exceeding 25 years. The classic distal symmetric polyneuropathy presents with length-dependent sensory loss beginning in the feet, progressing to involve the hands in a 'stocking-glove' pattern. Loss of protective sensation is the primary risk factor for diabetic foot ulcers and nontraumatic lower extremity amputation, making this diagnosis a critical trigger for intensive foot surveillance programs.

Documentation Requirements

• ✓Type 1 diabetes must be confirmed.
• ✓Clinical examination findings should describe the distribution (distal, symmetric), modalities affected (light touch, vibration, proprioception, temperature), and severity.
• ✓Monofilament testing and vibration perception results are essential documentation elements.
• ✓Nerve conduction studies, if performed, provide objective confirmation.
• ✓Foot risk assessment and preventive care planning should be documented.

Commonly Confused Codes