G56.4: Causalgia of upper limb

Excludes1

• 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 lower limb (G57.7-)
• reflex sympathetic dystrophy of lower limb (G90.52-)
• reflex sympathetic dystrophy of upper limb (G90.51-)