ICD-10-CM 2027
ICD-10 code for juvenile ankylosing chronic spondylitis
From the official ICD-10-CM alphabetic index entry “Spondylitis (chronic) › juvenile ankylosing (chronic)”. Page updated September 29, 2026.
About coding juvenile ankylosing chronic spondylitis
The ICD-10-CM code for juvenile ankylosing chronic spondylitis is M08.1 (Juvenile ankylosing spondylitis).
Within M08 (juvenile arthritis), M08.1 is specifically for juvenile ankylosing spondylitis. Related codes cover unspecified juvenile rheumatoid arthritis (M08.0), juvenile rheumatoid arthritis with systemic onset (M08.2), juvenile rheumatoid polyarthritis (seronegative) (M08.3), Pauciarticular juvenile rheumatoid arthritis (M08.4), other juvenile arthritis (M08.8) and unspecified (M08.9).
Don't report M08.1 together with the conditions in its Excludes1 note: ankylosing spondylitis in adults (M45.0-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for M08.1)
- ankylosing spondylitis in adults (M45.0-)
Common questions about juvenile ankylosing chronic spondylitis ICD-10 codes
What is the ICD-10 code for juvenile ankylosing chronic spondylitis?
- M08.1 — Juvenile ankylosing spondylitis.
Is M08.1 billable?
- Yes. M08.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M08.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M08.1 as a principal diagnosis.
Is M08.1 a CC or MCC?
- No. M08.1 is neither a CC nor an MCC under MS-DRG v44.0.