G13 – Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere
ICD-10-CM 2027 diagnosis code · Systemic atrophies primarily affecting the central nervous system
ICD-10-CM code
G13
- Code
G13(claims format:G13)- Description
- Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere
- Short description
- Systemic atrophies aff cnsl in diseases classd elswhr
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 6. Diseases of the nervous system (G00-G99)
- Block
- G10-G14 Systemic atrophies primarily affecting the central nervous system
Billable codes under G13
G13 is a header code and cannot be used on claims. Choose the most specific code:
- G13.0 – Paraneoplastic neuromyopathy and neuropathyBillable
- G13.1 – Other systemic atrophy primarily affecting central nervous system in neoplastic diseaseBillable
- G13.2 – Systemic atrophy primarily affecting the central nervous system in myxedemaBillable
- G13.8 – Systemic atrophy primarily affecting central nervous system in other diseases classified elsewhereBillable
Frequently asked questions
What is ICD-10 code G13?
G13 is the ICD-10-CM code for systemic atrophies primarily affecting central nervous system in diseases classified elsewhere, in the block G10-G14 (Systemic atrophies primarily affecting the central nervous system).
Is G13 a billable code?
No. G13 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.