G12.23
✓ Billable
Primary lateral sclerosis
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G12.23
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Nervous System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code G12.23?
ICD-10-CM code G12.23 represents Primary lateral sclerosis. It is a billable diagnosis code in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G12.23 billable?
Yes. G12.23 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is G12.23 in?
G12.23 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G12 category
G12
Spinal muscular atrophy and related syndromes
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G12.0
Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
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G12.1
Other inherited spinal muscular atrophy
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G12.2
Motor neuron disease
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G12.8
Other spinal muscular atrophies and related syndromes
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G12.9
Spinal muscular atrophy, unspecified
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G12.20
Motor neuron disease, unspecified
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G12.21
Amyotrophic lateral sclerosis
Billable
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