G56.4Causalgia of upper limb

ICD-10-CM category (non-billable header) code — part of Nerve, nerve root and plexus disorders (G50-G59)

Code Details

Billable	No — use a more specific child code
Chapter	Chapter 6: Diseases of the nervous system (G00-G99)
Section	Nerve, nerve root and plexus disorders (G50-G59)
Parent code	G56 — Mononeuropathies of upper limb

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-)

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