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M08

Non-billable

Juvenile arthritis

M08 is the ICD-10-CM code for Juvenile arthritis. It is a non-billable category code — use a more specific child code such as M08.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
7
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

What this means — in plain language

MedlinePlus · NIH

What is juvenile arthritis? Juvenile arthritis (JA) is arthritis that happens in children. It causes joint inflammation (swelling), pain, stiffness, and loss of motion. Joints are places where two bones meet, such as your elbow or knee. It can affect any joint, but it is more common in the knees, hands, and feet. JA can affect your child's growth and development, and in some cases, it can also affect other organs.…

Read more about Juvenile Arthritis at MedlinePlus ↗
Juvenile idiopathic arthritis ↗Juvenile Idiopathic Arthritis (JIA) ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •arthropathy in Whipple's disease (M14.8)
  • •Felty's syndrome (M05.0)
  • •juvenile dermatomyositis (M33.0-)
  • •psoriatic juvenile arthropathy (L40.54)

Notes

  • •any associated underlying condition, such as:
  • •regional enteritis [Crohn's disease] (K50.-)
  • •ulcerative colitis (K51.-)

Frequently asked questions

What is ICD-10 code M08?
M08 is the ICD-10-CM code for "Juvenile arthritis". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M08 a billable code?
No — M08 is a non-billable header code. Use a more specific child code (such as M08.0) for billing.
What are the subcodes of M08?
M08 has 7 more specific child codes, including M08.0, M08.1, M08.2.
What is excluded from M08?
Excludes1 (not coded here): arthropathy in Whipple's disease (M14.8); Felty's syndrome (M05.0); juvenile dermatomyositis (M33.0-); psoriatic juvenile arthropathy (L40.54).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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