M08.26 Juvenile rheumatoid arthritis with systemic onset, knee

Non-billable header with 3 child codes.

Applies from M08 Juvenile arthritis

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.-)

Applies from M08.2 Juvenile rheumatoid arthritis with systemic onset

Applicable to

• Still's disease NOS

Excludes1 (never code together)

• adult-onset Still's disease (M06.1-)

Codes under M08.26

• M08.261 Juvenile rheumatoid arthritis with systemic onset, right knee
• M08.262 Juvenile rheumatoid arthritis with systemic onset, left knee
• M08.269 Juvenile rheumatoid arthritis with systemic onset, unspecified knee

Code annotations containing back-references to M08.26

Back-references to M08.2

• Type 1 Excludes: M06.1 Adult-onset Still's disease ("Still's disease NOS (M08.2-)")

Back-references to M08

• Type 1 Excludes: M05 Rheumatoid arthritis with rheumatoid factor ("juvenile rheumatoid arthritis (M08.-)")

Diagnosis Index entries for M08.26

• Still's disease or syndrome (juvenile) › knee

Nearby codes

• M08.249 Juvenile rheumatoid arthritis with systemic onset, unspecified hand
• M08.25 Juvenile rheumatoid arthritis with systemic onset, hip
• M08.251 Juvenile rheumatoid arthritis with systemic onset, right hip
• M08.252 Juvenile rheumatoid arthritis with systemic onset, left hip
• M08.259 Juvenile rheumatoid arthritis with systemic onset, unspecified hip
• M08.26 Juvenile rheumatoid arthritis with systemic onset, knee (this code)
• M08.261 Juvenile rheumatoid arthritis with systemic onset, right knee
• M08.262 Juvenile rheumatoid arthritis with systemic onset, left knee
• M08.269 Juvenile rheumatoid arthritis with systemic onset, unspecified knee
• M08.27 Juvenile rheumatoid arthritis with systemic onset, ankle and foot
• M08.271 Juvenile rheumatoid arthritis with systemic onset, right ankle and foot