Systemic atrophies primarily affecting the central nervous system (G10-G14) ICD-10-CM
The G10–G14 section covers systemic atrophies primarily affecting the central nervous system with 33 ICD-10-CM diagnosis codes, of which 28 are billable in fiscal year 2026. The section is organized into the 5 code ranges listed below.
Code Ranges in This Section 5 ranges · 33 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the G10–G14 Code Range
ICD-10 codes G10 through G14 cover systemic atrophies mainly affecting the central nervous system. This grouping includes hereditary neurodegenerative diseases such as Huntington's disease, various hereditary ataxias, spinal muscular atrophies, and postpolio syndrome, all characterized by progressive loss of nervous system function.
The range starts with G10 for Huntington's disease, also known as Huntington chorea or dementia due to genetic disease. Codes from G11 address hereditary ataxias, including Friedreich ataxia (G11.11), congenital nonprogressive ataxia, and episodic ataxias, highlighting conditions with impaired muscle coordination. G12 focuses on spinal muscular atrophies and related syndromes such as Werdnig-Hoffman disease (G12.0), amyotrophic lateral sclerosis (G12.21), and motor neuron diseases, involving progressive muscle weakness. The G13 codes refer to systemic CNS atrophies linked to other diseases, like paraneoplastic cerebellar degeneration. Finally, G14 represents postpolio syndrome, a delayed complication seen after poliomyelitis. These codes assist healthcare providers and coders in accurately identifying and tracking hereditary and systemic neurodegenerative disorders affecting the brain and spinal cord.
Questions About This Page
How many codes are in the G10-G14 range?
The G10-G14 range contains 33 ICD-10-CM diagnosis codes in FY 2026. 28 of them are billable, and the rest are category headers that organize the section.
What conditions does G10-G14 cover?
The range covers systemic atrophies primarily affecting the central nervous system. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
