M1A
⚠ Non-billable
Chronic gout
ICD-10-CM · FY2026 · Diseases of the Musculoskeletal System and Connective Tissue
Code
M1A
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Musculoskeletal System and Connective Tissue
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.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes1 — never code together
- gout NOS (M10.-)
Excludes2 — not included here, but may code together
- acute gout (M10.-)
Use additional code
- code to identify:
- Autonomic neuropathy in diseases classified elsewhere (G99.0)
- Calculus of urinary tract in diseases classified elsewhere (N22)
- Cardiomyopathy in diseases classified elsewhere (I43)
- Disorders of external ear in diseases classified elsewhere (H61.1-, H62.8-)
- Disorders of iris and ciliary body in diseases classified elsewhere (H22)
- Glomerular disorders in diseases classified elsewhere (N08)
7th character
- The appropriate 7th character is to be added to each code from category M1A
Frequently asked questions
What is ICD-10 code M1A?
ICD-10-CM code M1A represents Chronic gout. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Musculoskeletal System and Connective Tissue chapter, effective October 1, 2025 – September 30, 2026.
Is M1A billable?
No. M1A is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is M1A in?
M1A belongs to the Diseases of the Musculoskeletal System and Connective Tissue chapter (M00–M99) of ICD-10-CM.
Related codes in the M1A category
M1A.0
Idiopathic chronic gout
Non-billable
M1A.00
Idiopathic chronic gout, unspecified site
Non-billable
M1A.01
Idiopathic chronic gout, shoulder
Non-billable
M1A.02
Idiopathic chronic gout, elbow
Non-billable
M1A.03
Idiopathic chronic gout, wrist
Non-billable
M1A.04
Idiopathic chronic gout, hand
Non-billable
M1A.05
Idiopathic chronic gout, hip
Non-billable
M1A.011
Idiopathic chronic gout, right shoulder
Non-billable
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