Other specified disorders of nervous system in diseases classified elsewhere G99.8

The ICD10 code for the diagnosis "Other specified disorders of nervous system in diseases classified elsewhere" is "G99.8". G99.8 is a VALID/BILLABLE ICD10 code, i.e it is valid for submission for HIPAA-covered transactions.

  • G99.8 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM G99.8 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of G99.8 - other international versions of ICD-10 G99.8 may differ.
Code First:
  • underlying disorder, such as:
  • amyloidosis (E85.-)
  • avitaminosis (E56.9)
Type 1 Excludes:
  • nervous system involvement in:
  • cysticercosis (B69.0)
  • rubella (B06.0-)
  • syphilis (A52.1-)

Codes: = Billable

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.