M08.0 – Unspecified juvenile rheumatoid arthritis

ICD-10-CM 2027 diagnosis code · Inflammatory polyarthropathies

Non-billable header

ICD-10-CM code M08.0

Code: M08.0 (claims format: M080)
Description: Unspecified juvenile rheumatoid arthritis
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: M05-M14 Inflammatory polyarthropathies
Parent codes: M08

Billable codes under M08.0

M08.0 is a header code and cannot be used on claims. Choose the most specific code:

M08.00 – Unspecified juvenile rheumatoid arthritis of unspecified siteBillable
M08.01 – Unspecified juvenile rheumatoid arthritis, shoulderHeader (more codes below)
M08.02 – Unspecified juvenile rheumatoid arthritis of elbowHeader (more codes below)
M08.03 – Unspecified juvenile rheumatoid arthritis, wristHeader (more codes below)
M08.04 – Unspecified juvenile rheumatoid arthritis, handHeader (more codes below)
M08.05 – Unspecified juvenile rheumatoid arthritis, hipHeader (more codes below)
M08.06 – Unspecified juvenile rheumatoid arthritis, kneeHeader (more codes below)
M08.07 – Unspecified juvenile rheumatoid arthritis, ankle and footHeader (more codes below)
M08.08 – Unspecified juvenile rheumatoid arthritis, vertebraeBillable
M08.09 – Unspecified juvenile rheumatoid arthritis, multiple sitesBillable
M08.0A – Unspecified juvenile rheumatoid arthritis, other specified siteBillable

Notes for M08.0

Applicable to:

Juvenile rheumatoid arthritis with or without rheumatoid factor

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

M08 – Juvenile arthritis

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)

Code also:

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

Related codes in M08

Frequently asked questions

What is ICD-10 code M08.0?

M08.0 is the ICD-10-CM code for unspecified juvenile rheumatoid arthritis, in the block M05-M14 (Inflammatory polyarthropathies).

Is M08.0 a billable code?

No. M08.0 is a header code with more specific child codes; report one of the billable codes listed above.

What category does M08.0 belong to?

It belongs to category M08 – Juvenile arthritis.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.