M08.21 – Juvenile rheumatoid arthritis with systemic onset, shoulder

Code

M08.21 (claims format: M0821)

Description

Juvenile rheumatoid arthritis with systemic onset, shoulder

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 › M08.2

Billable codes under M08.21

M08.21 is a header code and cannot be used on claims. Choose the most specific code:

• M08.211 – Juvenile rheumatoid arthritis with systemic onset, right shoulderBillable
• M08.212 – Juvenile rheumatoid arthritis with systemic onset, left shoulderBillable
• M08.219 – Juvenile rheumatoid arthritis with systemic onset, unspecified shoulderBillable

Notes inherited from parent codes

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

M08 – Juvenile arthritis

M08.2 – Juvenile rheumatoid arthritis with systemic onset

Index terms for M08.21

Entries in the ICD-10-CM alphabetic index that lead to this code:

• Still's disease or syndrome, shoulder

Related codes in M08.2

• M08.20 – Juvenile rheumatoid arthritis with systemic onset, unspecified siteBillable
• M08.22 – Juvenile rheumatoid arthritis with systemic onset, elbowHeader
• M08.23 – Juvenile rheumatoid arthritis with systemic onset, wristHeader
• M08.24 – Juvenile rheumatoid arthritis with systemic onset, handHeader
• M08.25 – Juvenile rheumatoid arthritis with systemic onset, hipHeader
• M08.26 – Juvenile rheumatoid arthritis with systemic onset, kneeHeader
• M08.27 – Juvenile rheumatoid arthritis with systemic onset, ankle and footHeader
• M08.28 – Juvenile rheumatoid arthritis with systemic onset, vertebraeBillable
• M08.29 – Juvenile rheumatoid arthritis with systemic onset, multiple sitesBillable
• M08.2A – Juvenile rheumatoid arthritis with systemic onset, other specified siteBillable