M08
⚠ Non-billable
Juvenile arthritis
ICD-10-CM · FY2026 · Diseases of the Musculoskeletal System and Connective Tissue
Code
M08
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
- arthropathy in Whipple's disease (M14.8)
- Felty's syndrome (M05.0)
- juvenile dermatomyositis (M33.0-)
- psoriatic juvenile arthropathy (L40.54)
Code also
- any associated underlying condition, such as:
- regional enteritis [Crohn's disease] (K50.-)
- ulcerative colitis (K51.-)
Frequently asked questions
What is ICD-10 code M08?
ICD-10-CM code M08 represents Juvenile arthritis. 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 M08 billable?
No. M08 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is M08 in?
M08 belongs to the Diseases of the Musculoskeletal System and Connective Tissue chapter (M00–M99) of ICD-10-CM.
Related codes in the M08 category
M08.0
Unspecified juvenile rheumatoid arthritis
Non-billable
M08.1
Juvenile ankylosing spondylitis
Billable
M08.2
Juvenile rheumatoid arthritis with systemic onset
Non-billable
M08.00
Unspecified juvenile rheumatoid arthritis of unspecified site
Billable
M08.01
Unspecified juvenile rheumatoid arthritis, shoulder
Non-billable
M08.02
Unspecified juvenile rheumatoid arthritis of elbow
Non-billable
M08.03
Unspecified juvenile rheumatoid arthritis, wrist
Non-billable
M08.04
Unspecified juvenile rheumatoid arthritis, hand
Non-billable
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