G57.81 ICD-10-CM Code: Other specified mononeuropathies of right lower limb

G57.81 is the ICD-10-CM diagnosis code for other specified mononeuropathies of right lower limb. This code describes a nerve injury or dysfunction affecting a single nerve in the right leg that doesn't fit into other standard nerve damage categories. It represents a specific type of nerve problem that causes weakness, numbness, or pain in the right lower limb. G57.81 sits in the ICD-10-CM chapter for diseases of the nervous system (g00-g99), within the section covering nerve, nerve root and plexus disorders (g50-g59).

G57.81 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Verify the specific nerve affected and confirm it is localized to the right lower limb; if bilateral or affecting the left side, use the appropriate laterality code.