ICD-10 Code G57.12 – Meralgia paresthetica, left lower limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G57.12 – Meralgia paresthetica, left lower limb
What it is
Meralgia paresthetica is a sensory nerve entrapment affecting the outer thigh. This code specifies the left lower limb, so use it when the left lateral femoral cutaneous nerve is involved.
Clinical signs
Typical findings include burning, tingling, numbness, or pain over the outer left thigh. Motor weakness is not expected; clinical features vary, so refer to documentation.
When to use this code
Use G57.12 when the provider documents meralgia paresthetica on the left side or left lateral femoral cutaneous nerve entrapment. It may also fit notes describing isolated sensory symptoms in the left anterolateral thigh with that diagnosis confirmed. If laterality is not documented, check the chart before assigning this code.
Do not use for
Do not use this code for generalized leg pain, radiculopathy, or hip pathology without documented meralgia paresthetica. If the condition is bilateral or unspecified, choose the code that matches the record.
Coding tip
Verify laterality in the assessment, not only in the symptom description, before coding G57.12.