MCMedicalCodingSoftware
G57.7

G57.7: Causalgia of lower limb

Non-billable headerICD-10-CM

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.

  • 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-)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Complex regional pain syndrome II of lower limb

Excludes1 inherited from the categories above G57.7

A category’s note binds every code beneath it.

Written on G57: Mononeuropathies of lower limb

  • current traumatic nerve disorder - see nerve injury by body region

Other codes that can never be billed with G57.7

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • G56.4Causalgia of upper limb
  • G89.2Chronic pain, not elsewhere classified
  • G90.5Complex regional pain syndrome I (CRPS I)
  • M89.0Algoneurodystrophy

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead G57.7

4 child codes. Green means billable.

Other codes under G57

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.