ICD-10-CM
ICD-10 code for Amyotrophic lateral sclerosis: G12.21
The closest CDC title for "Amyotrophic lateral sclerosis" is G12.21, Amyotrophic lateral sclerosis. G12.21 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under G12, then other CDC titles that name amyotrophic lateral sclerosis
A header groups codes and is not billed. A billable code is one you can report.
- G12Spinal muscular atrophy and related syndromesHeader
- G12.0Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]Billable
- G12.1Other inherited spinal muscular atrophyBillable
- G12.2Motor neuron diseaseHeader
- G12.20Motor neuron disease, unspecifiedBillable
- G12.21Amyotrophic lateral sclerosisBillable
- G12.22Progressive bulbar palsyBillable
- G12.23Primary lateral sclerosisBillable
- G12.24Familial motor neuron diseaseBillable
- G12.25Progressive spinal muscle atrophyBillable
- G12.29Other motor neuron diseaseBillable
- G12.8Other spinal muscular atrophies and related syndromesBillable
- G12.9Spinal muscular atrophy, unspecifiedBillable
Related conditions
Related pages
- G12.21 code detailsNotes, nearby codes, CMS-HCC group
- Category G12Every code under it
- Chapter 6Diseases of the nervous system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Amyotrophic lateral sclerosis?
The closest CDC title for "Amyotrophic lateral sclerosis" is G12.21, Amyotrophic lateral sclerosis. G12.21 is a billable code.
Is G12.21 billable?
Yes. G12.21 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What chapter is G12.21 in?
Chapter 6. Diseases of the nervous system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.