G00–G99: Diseases of the Nervous System
Chapter 6 of ICD-10-CM 2027, 932 codes in 11 blocks.
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Chapter instructions
Excludes2: not included here, code separately if applicable
- 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)
Codes in this chapter
All codesBillable only700 results
- G47.61Periodic limb movement disorder
- G47.62Sleep related leg cramps
- G47.63Sleep related bruxism
- G47.69Other sleep related movement disorders
- G47.8Other sleep disorders
- G47.9Sleep disorder, unspecified
- G50.0Trigeminal neuralgia
- G50.1Atypical facial pain
- G50.8Other disorders of trigeminal nerve
- G50.9Disorder of trigeminal nerve, unspecified
- G51.0Bell's palsy
- G51.1Geniculate ganglionitis
- G51.2Melkersson's syndrome
- G51.31Clonic hemifacial spasm, right
- G51.32Clonic hemifacial spasm, left
- G51.33Clonic hemifacial spasm, bilateral
- G51.39Clonic hemifacial spasm, unspecified
- G51.4Facial myokymia
- G51.8Other disorders of facial nerve
- G51.9Disorder of facial nerve, unspecified
- G52.0Disorders of olfactory nerve
- G52.1Disorders of glossopharyngeal nerve
- G52.2Disorders of vagus nerve
- G52.3Disorders of hypoglossal nerve
- G52.7Disorders of multiple cranial nerves
- G52.8Disorders of other specified cranial nerves
- G52.9Cranial nerve disorder, unspecified
- G53Cranial nerve disorders in diseases classified elsewhere
- G54.0Brachial plexus disorders
- G54.1Lumbosacral plexus disorders
- G54.2Cervical root disorders, not elsewhere classified
- G54.3Thoracic root disorders, not elsewhere classified
- G54.4Lumbosacral root disorders, not elsewhere classified
- G54.5Neuralgic amyotrophy
- G54.6Phantom limb syndrome with pain
- G54.7Phantom limb syndrome without pain
- G54.8Other nerve root and plexus disorders
- G54.9Nerve root and plexus disorder, unspecified
- G55Nerve root and plexus compressions in diseases classified elsewhere
- G56.00Carpal tunnel syndrome, unspecified upper limb
- G56.01Carpal tunnel syndrome, right upper limb
- G56.02Carpal tunnel syndrome, left upper limb
- G56.03Carpal tunnel syndrome, bilateral upper limbs
- G56.10Other lesions of median nerve, unspecified upper limb
- G56.11Other lesions of median nerve, right upper limb
- G56.12Other lesions of median nerve, left upper limb
- G56.13Other lesions of median nerve, bilateral upper limbs
- G56.20Lesion of ulnar nerve, unspecified upper limb
- G56.21Lesion of ulnar nerve, right upper limb
- G56.22Lesion of ulnar nerve, left upper limb