G57.4Lesion of medial popliteal nerve

G57.4 is the ICD-10-CM diagnosis code for lesion of medial popliteal nerve. It belongs to category G57 (mononeuropathies of lower limb), block G50-G59 (nerve, nerve root and plexus disorders) and chapter 6 (diseases of the nervous system). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within G57 (mononeuropathies of lower limb), G57.4 is specifically for lesion of medial popliteal nerve. Related codes cover lesion of sciatic nerve (G57.0), Meralgia paresthetica (G57.1), lesion of femoral nerve (G57.2), lesion of lateral popliteal nerve (G57.3), tarsal tunnel syndrome (G57.5), lesion of plantar nerve (G57.6), Causalgia of lower limb (G57.7), other specified mononeuropathies of lower limb (G57.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: G57.40 (unspecified lower limb), G57.41 (right lower limb), G57.42 (left lower limb) and G57.43 (bilateral lower limbs).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.