Diseases of the nervous system (G00-G99)

Excludes 2:
certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Polyneuropathies and other disorders of the peripheral nervous system (G60-G65)

Excludes 1:
neuralgia NOS (M79.2)
neuritis NOS (M79.2)
peripheral neuritis in pregnancy (O26.82-)
radiculitis NOS (M54.10)
G60 Hereditary and idiopathic neuropathy [+]
G61 Inflammatory polyneuropathy [+]
G62 Other and unspecified polyneuropathies [+]
G63 Polyneuropathy in diseases classified elsewhere
Code first underlying disease, such as:
amyloidosis (E85.-)
endocrine disease, except diabetes (E00-E07, E15-E16, E20-E34)
metabolic diseases (E70-E88)
neoplasm (C00-D49)
nutritional deficiency (E40-E64)
Excludes 1: polyneuropathy (in):
diabetes mellitus (E08-E13 with .42)
diphtheria (A36.83)
infectious mononucleosis complicated by polyneuropathy (B27.0-B27.9 with fifth character 1)
Lyme disease (A69.22)
mumps (B26.84)
postherpetic (B02.23)
rheumatoid arthritis (M05.5-)
scleroderma (M34.83)
systemic lupus erythematosus (M32.19)
G64 Other disorders of peripheral nervous system
Disorder of peripheral nervous system NOS
G65 Sequelae of inflammatory and toxic polyneuropathies [+]
Code first condition resulting from (sequela) of inflammatory and toxic polyneuropathies

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