G99.8 Billable Code
Other specified disorders of nervous system in diseases classified elsewhere
Effective From: 10/01/2016
Chapter Classification
Chapter 6
Diseases of the nervous system (G00-G99)
Section Detail
G89-G99
Other disorders of the nervous system (G89-G99)
Code Hierarchy
This code is a child of G99.
Coding Guidelines & Notes
codeFirst
- underlying disorder, such as:
- amyloidosis (E85.-)
- avitaminosis (E56.-)
excludes1
- nervous system involvement in:
- cysticercosis (B69.0)
- rubella (B06.0-)
- syphilis (A52.1-)
OPPS Editing Flags
External Cause
No
Mental Health
No
Manifestation (Edit 89)
Yes
Code First Applicable This code represents a manifestation of an underlying disease. The underlying condition must be coded first as the principal diagnosis.
No
Unacceptable PDX (Edit 113)
No
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