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ICD-10-CM Code G23.8
Other specified degenerative diseases of basal ganglia

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

G23.8 is a billable ICD code used to specify a diagnosis of other specified degenerative diseases of basal ganglia. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code G238 is used to code Fahr's syndrome

Idiopathic Basal Ganglia Calcification, also known as Fahr disease, is a rare, genetically dominant, inherited neurological disorder characterized by abnormal deposits of calcium in areas of the brain that control movement. Through the use of CT scans, calcifications are seen primarily in the basal ganglia and in other areas such as the cerebral cortex.

Specialty: Neurology
Source: Wikipedia

Coding Notes for G23.8 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Calcification of basal ganglia

MS-DRG Mapping

  • DRG Group #056-057 - Degenerative nervous system disorders with MCC.
  • DRG Group #056-057 - Degenerative nervous system disorders without MCC.

ICD-10-CM Alphabetical Index References for 'G23.8 - Other specified degenerative diseases of basal ganglia'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code G23.8. Click on any term below to browse the alphabetical index.

Fahr disease(of brain) (G23.8)
Déjérine-Thomas atrophy (G23.8)


Other degenerative diseases of the basal ganglia (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code G23.8 and a single ICD9 code, 333.0 is an approximate match for comparison and conversion purposes.

Parent Code: G23 - Other degenerative diseases of basal ganglia

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Source: http://icd.codes/icd10cm/G238