Is G13 a billable code?
No. G13 is a header code that groups 4 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
G13: Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
G13 groups related diagnoses under systemic atrophies primarily affecting central nervous system in diseases classified elsewhere. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under G13
- G13.0Paraneoplastic neuromyopathy and neuropathy
- G13.1Other systemic atrophy primarily affecting central nervous system in neoplastic disease
- G13.2Systemic atrophy primarily affecting the central nervous system in myxedema
- G13.8Systemic atrophy primarily affecting central nervous system in other diseases classified elsewhere
G13 questions
What does G13 mean?
G13 is the ICD-10-CM code for Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere. It is in chapter 6, Diseases of the nervous system (G00-G99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.