G57.7 — Causalgia of lower limb
G57.7 is a non-billable header ICD-10-CM code for causalgia of lower limb. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Complex regional pain syndrome II of lower limb
Other codes that can never be billed with G57.7
These codes carry an Excludes1 note pointing at G57.7. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G57.7 alone.
Risk adjustment
G57.7 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead G57.7
4 child codes. Green means billable.
Related codes at this level
Codes that share G57. If G57.7 is not quite right, the correct code is usually one of these.
- G57.0Lesion of sciatic nerve
- G57.1Meralgia paresthetica
- G57.2Lesion of femoral nerve
- G57.3Lesion of lateral popliteal nerve
- G57.4Lesion of medial popliteal nerve
- G57.5Tarsal tunnel syndrome
- G57.6Lesion of plantar nerve
- G57.8Other specified mononeuropathies of lower limb
- G57.9Unspecified mononeuropathy of lower limb
Questions about G57.7
- Is G57.7 a billable ICD-10-CM code?
- No. G57.7 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does G57.7 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Nerve, nerve root and plexus disorders (G50-G59).
- What cannot be coded together with G57.7?
- G57.7 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.