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sympathetic dystrophy or paralysis

G90.3 Multi-system degeneration of the autonomic nervous system

Neurogenic orthostatic hypotension [Shy-Drager]

Excludes1: orthostatic hypotension NOS (I95.1)

G90.4 Autonomic dysreflexia

Use additional code to identify the cause, such as:

pressure ulcer (pressure area) (L89.-)

fecal impaction (K56.4)

urinary tract infection (N39.0)

G90.5 Complex regional pain syndrome I (CRPS I)

Reflex sympathetic dystrophy

Excludes1: causalgia of lower limb (G57.7-)

causalgia of upper limb (G56.4-)

complex regional pain syndrome II of lower limb (G57.7-)

complex regional pain syndrome II of upper limb (G56.4-)

G90.50 Complex regional pain syndrome I, unspecified

G90.51 Complex regional pain syndrome I of upper limb

G90.511 Complex regional pain syndrome I of right upper limb

G90.512 Complex regional pain syndrome I of left upper limb

G90.513 Complex regional pain syndrome I of upper limb, bilateral

G90.519 Complex regional pain syndrome I of unspecified upper limb

G90.52 Complex regional pain syndrome I of lower limb

G90.521 Complex regional pain syndrome I of right lower limb

G90.522 Complex regional pain syndrome I of left lower limb

G90.523 Complex regional pain syndrome I of lower limb, bilateral

G90.529 Complex regional pain syndrome I of unspecified lower limb

G90.59 Complex regional pain syndrome I of other specified site

G90.8 Other disorders of autonomic nervous system

G90.9 Disorder of the autonomic nervous system, unspecified

G91 Hydrocephalus

Includes acquired hydrocephalus

Excludes1: Arnold-Chiari syndrome with hydrocephalus (Q07.-)

congenital hydrocephalus (Q03.-)

spina bifida with hydrocephalus (Q05.-)

G91.0 Communicating hydrocephalus

Secondary