M1A.40X1
✓ Billable
Other secondary chronic gout, unspecified site, with tophus (tophi)
ICD-10-CM · FY2026 · Diseases of the Musculoskeletal System and Connective Tissue
Code
M1A.40X1
System
ICD-10-CM
Billable
Yes — valid for submission
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.
Frequently asked questions
What is ICD-10 code M1A.40X1?
ICD-10-CM code M1A.40X1 represents Other secondary chronic gout, unspecified site, with tophus (tophi). It is a billable diagnosis code in the Diseases of the Musculoskeletal System and Connective Tissue chapter, effective October 1, 2025 – September 30, 2026.
Is M1A.40X1 billable?
Yes. M1A.40X1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is M1A.40X1 in?
M1A.40X1 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
Chronic gout
Non-billable
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
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