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ICD-10-CM 2027

ICD-10 code for lower limb causalgia

G57.7

Causalgia of lower limb

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Causalgia (upper limb) › lower limb”. Page updated September 29, 2026.

About coding lower limb causalgia

The ICD-10-CM code for lower limb causalgia is G57.7 (Causalgia of lower limb).

Within G57 (mononeuropathies of lower limb), G57.7 is specifically for Causalgia of lower limb. 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), lesion of medial popliteal nerve (G57.4), tarsal tunnel syndrome (G57.5), lesion of plantar nerve (G57.6), other specified mononeuropathies of lower limb (G57.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: G57.70 (limb), G57.71 (limb), G57.72 (limb) and G57.73 (limbs).

Don't report G57.7 together with the conditions in its Excludes1 note: complex regional pain syndrome I of lower limb (G90.52-), complex regional pain syndrome I of upper limb (G90.51-), complex regional pain syndrome II of upper limb (G56.4-), reflex sympathetic dystrophy of lower limb (G90.52-) and 1 more.

Don't confuse with (Excludes1 for G57.7)

  • complex regional pain syndrome I of lower limb (G90.52-)
  • complex regional pain syndrome I of upper limb (G90.51-)
  • complex regional pain syndrome II of upper limb (G56.4-)
  • reflex sympathetic dystrophy of lower limb (G90.52-)
  • reflex sympathetic dystrophy of upper limb (G90.51-)

Common questions about lower limb causalgia ICD-10 codes

What is the ICD-10 code for lower limb causalgia?

G57.7 — Causalgia of lower limb (a header code; report a more specific subcode).

Is G57.7 billable?

No. G57.7 is a header code. Report one of its more specific subcodes instead.