ICD-10-CM code · FY2027
G31 Other degenerative diseases of nervous system, not elsewhere classified
Header codeNot billable: use one of the 14 billable codes below
About G31
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Coding notes for G31
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
- Reye's syndrome (G93.7)
Use additional code Add a second code for the detail named here.
- code, if applicable, for codes G31.0-G31.83, G31.85-G31.9, to identify:
- dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
- dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
- dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3)
- dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)
- dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)
- mild neurocognitive disorder due to known physiological condition (F06.7-)
Chapter 6 notes (apply to every code in it)
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
- 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 under G31 16
- G31.0 Frontotemporal dementiaHeader
- G31.01 Pick's diseaseBillable
- G31.09 Other frontotemporal neurocognitive disorderBillable
- G31.1 Senile degeneration of brain, not elsewhere classifiedBillable
- G31.2 Degeneration of nervous system due to alcoholBillable
- G31.8 Other specified degenerative diseases of nervous systemHeader
- G31.80 Leukodystrophy, unspecifiedBillable
- G31.81 Alpers diseaseBillable
- G31.82 Leigh's diseaseBillable
- G31.83 Neurocognitive disorder with Lewy bodiesBillable
- G31.84 Mild cognitive impairment of uncertain or unknown etiologyBillable
- G31.85 Corticobasal degenerationBillable
- G31.86 Alexander diseaseBillable
- G31.87 Primary progressive apraxia of speechBillable
- G31.89 Other specified degenerative diseases of nervous systemBillable
- G31.9 Degenerative disease of nervous system, unspecifiedBillable
Other categories in G30-G32
Latest research on degenerative diseases of nervous system
- Ultrasound ablation of globus pallidus reduces Parkinson’s disease motor symptoms
- 2 Minute Medicine Rewind December 19, 2022
- Subcortical neurons associated with sleep disturbances in neurodegenerative disease
- 2 Minute Medicine Rewind May 13, 2019
More on degenerative diseases of nervous system from 2 Minute Medicine
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