Juvenile arthritis (M08) ICD-10-CM
The M08 code range covers juvenile arthritis with 166 ICD-10-CM diagnosis codes. 125 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- any associated underlying condition, such as:
- regional enteritis [Crohn's disease] K50
- ulcerative colitis K51
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the M08 Range 166 codes · 125 billable
- M08 Juvenile arthritisNon-billable
- M08.0 Unspecified juvenile rheumatoid arthritisNon-billable
- M08.00 Unspecified juvenile rheumatoid arthritis of unspecified site
- M08.01 Unspecified juvenile rheumatoid arthritis, shoulderNon-billable
- M08.011 Unspecified juvenile rheumatoid arthritis, right shoulder
- M08.012 Unspecified juvenile rheumatoid arthritis, left shoulder
- M08.019 Unspecified juvenile rheumatoid arthritis, unspecified shoulder
- M08.02 Unspecified juvenile rheumatoid arthritis of elbowNon-billable
- M08.021 Unspecified juvenile rheumatoid arthritis, right elbow
- M08.022 Unspecified juvenile rheumatoid arthritis, left elbow
- M08.029 Unspecified juvenile rheumatoid arthritis, unspecified elbow
- M08.03 Unspecified juvenile rheumatoid arthritis, wristNon-billable
- M08.031 Unspecified juvenile rheumatoid arthritis, right wrist
- M08.032 Unspecified juvenile rheumatoid arthritis, left wrist
- M08.039 Unspecified juvenile rheumatoid arthritis, unspecified wrist
- M08.04 Unspecified juvenile rheumatoid arthritis, handNon-billable
- M08.041 Unspecified juvenile rheumatoid arthritis, right hand
- M08.042 Unspecified juvenile rheumatoid arthritis, left hand
- M08.049 Unspecified juvenile rheumatoid arthritis, unspecified hand
- M08.05 Unspecified juvenile rheumatoid arthritis, hipNon-billable
- M08.051 Unspecified juvenile rheumatoid arthritis, right hip
- M08.052 Unspecified juvenile rheumatoid arthritis, left hip
- M08.059 Unspecified juvenile rheumatoid arthritis, unspecified hip
- M08.06 Unspecified juvenile rheumatoid arthritis, kneeNon-billable
- M08.061 Unspecified juvenile rheumatoid arthritis, right knee
- M08.062 Unspecified juvenile rheumatoid arthritis, left knee
- M08.069 Unspecified juvenile rheumatoid arthritis, unspecified knee
- M08.07 Unspecified juvenile rheumatoid arthritis, ankle and footNon-billable
- M08.071 Unspecified juvenile rheumatoid arthritis, right ankle and foot
- M08.072 Unspecified juvenile rheumatoid arthritis, left ankle and foot
- M08.079 Unspecified juvenile rheumatoid arthritis, unspecified ankle and foot
- M08.08 Unspecified juvenile rheumatoid arthritis, vertebrae
- M08.09 Unspecified juvenile rheumatoid arthritis, multiple sites
- M08.0A Unspecified juvenile rheumatoid arthritis, other specified site
- M08.1 Juvenile ankylosing spondylitis
- M08.2 Juvenile rheumatoid arthritis with systemic onsetNon-billable
- M08.20 Juvenile rheumatoid arthritis with systemic onset, unspecified site
- M08.21 Juvenile rheumatoid arthritis with systemic onset, shoulderNon-billable
- M08.211 Juvenile rheumatoid arthritis with systemic onset, right shoulder
- M08.212 Juvenile rheumatoid arthritis with systemic onset, left shoulder
- M08.219 Juvenile rheumatoid arthritis with systemic onset, unspecified shoulder
- M08.22 Juvenile rheumatoid arthritis with systemic onset, elbowNon-billable
- M08.221 Juvenile rheumatoid arthritis with systemic onset, right elbow
- M08.222 Juvenile rheumatoid arthritis with systemic onset, left elbow
- M08.229 Juvenile rheumatoid arthritis with systemic onset, unspecified elbow
- M08.23 Juvenile rheumatoid arthritis with systemic onset, wristNon-billable
- M08.231 Juvenile rheumatoid arthritis with systemic onset, right wrist
- M08.232 Juvenile rheumatoid arthritis with systemic onset, left wrist
- M08.239 Juvenile rheumatoid arthritis with systemic onset, unspecified wrist
- M08.24 Juvenile rheumatoid arthritis with systemic onset, handNon-billable
- M08.241 Juvenile rheumatoid arthritis with systemic onset, right hand
- M08.242 Juvenile rheumatoid arthritis with systemic onset, left hand
- M08.249 Juvenile rheumatoid arthritis with systemic onset, unspecified hand
- M08.25 Juvenile rheumatoid arthritis with systemic onset, hipNon-billable
- 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, kneeNon-billable
- 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 footNon-billable
- M08.271 Juvenile rheumatoid arthritis with systemic onset, right ankle and foot
- M08.272 Juvenile rheumatoid arthritis with systemic onset, left ankle and foot
- M08.279 Juvenile rheumatoid arthritis with systemic onset, unspecified ankle and foot
- M08.28 Juvenile rheumatoid arthritis with systemic onset, vertebrae
- M08.29 Juvenile rheumatoid arthritis with systemic onset, multiple sites
- M08.2A Juvenile rheumatoid arthritis with systemic onset, other specified site
- M08.3 Juvenile rheumatoid polyarthritis (seronegative)
- M08.4 Pauciarticular juvenile rheumatoid arthritisNon-billable
- M08.40 Pauciarticular juvenile rheumatoid arthritis, unspecified site
- M08.41 Pauciarticular juvenile rheumatoid arthritis, shoulderNon-billable
- M08.411 Pauciarticular juvenile rheumatoid arthritis, right shoulder
- M08.412 Pauciarticular juvenile rheumatoid arthritis, left shoulder
- M08.419 Pauciarticular juvenile rheumatoid arthritis, unspecified shoulder
- M08.42 Pauciarticular juvenile rheumatoid arthritis, elbowNon-billable
- M08.421 Pauciarticular juvenile rheumatoid arthritis, right elbow
- M08.422 Pauciarticular juvenile rheumatoid arthritis, left elbow
- M08.429 Pauciarticular juvenile rheumatoid arthritis, unspecified elbow
- M08.43 Pauciarticular juvenile rheumatoid arthritis, wristNon-billable
- M08.431 Pauciarticular juvenile rheumatoid arthritis, right wrist
- M08.432 Pauciarticular juvenile rheumatoid arthritis, left wrist
- M08.439 Pauciarticular juvenile rheumatoid arthritis, unspecified wrist
- M08.44 Pauciarticular juvenile rheumatoid arthritis, handNon-billable
- M08.441 Pauciarticular juvenile rheumatoid arthritis, right hand
- M08.442 Pauciarticular juvenile rheumatoid arthritis, left hand
- M08.449 Pauciarticular juvenile rheumatoid arthritis, unspecified hand
- M08.45 Pauciarticular juvenile rheumatoid arthritis, hipNon-billable
- M08.451 Pauciarticular juvenile rheumatoid arthritis, right hip
- M08.452 Pauciarticular juvenile rheumatoid arthritis, left hip
- M08.459 Pauciarticular juvenile rheumatoid arthritis, unspecified hip
- M08.46 Pauciarticular juvenile rheumatoid arthritis, kneeNon-billable
- M08.461 Pauciarticular juvenile rheumatoid arthritis, right knee
- M08.462 Pauciarticular juvenile rheumatoid arthritis, left knee
- M08.469 Pauciarticular juvenile rheumatoid arthritis, unspecified knee
- M08.47 Pauciarticular juvenile rheumatoid arthritis, ankle and footNon-billable
- M08.471 Pauciarticular juvenile rheumatoid arthritis, right ankle and foot
- M08.472 Pauciarticular juvenile rheumatoid arthritis, left ankle and foot
- M08.479 Pauciarticular juvenile rheumatoid arthritis, unspecified ankle and foot
- M08.48 Pauciarticular juvenile rheumatoid arthritis, vertebrae
- M08.4A Pauciarticular juvenile rheumatoid arthritis, other specified site
- M08.8 Other juvenile arthritisNon-billable
- M08.80 Other juvenile arthritis, unspecified site
- M08.81 Other juvenile arthritis, shoulderNon-billable
- M08.811 Other juvenile arthritis, right shoulder
- M08.812 Other juvenile arthritis, left shoulder
- M08.819 Other juvenile arthritis, unspecified shoulder
- M08.82 Other juvenile arthritis, elbowNon-billable
- M08.821 Other juvenile arthritis, right elbow
- M08.822 Other juvenile arthritis, left elbow
- M08.829 Other juvenile arthritis, unspecified elbow
- M08.83 Other juvenile arthritis, wristNon-billable
- M08.831 Other juvenile arthritis, right wrist
- M08.832 Other juvenile arthritis, left wrist
- M08.839 Other juvenile arthritis, unspecified wrist
- M08.84 Other juvenile arthritis, handNon-billable
- M08.841 Other juvenile arthritis, right hand
- M08.842 Other juvenile arthritis, left hand
- M08.849 Other juvenile arthritis, unspecified hand
- M08.85 Other juvenile arthritis, hipNon-billable
- M08.851 Other juvenile arthritis, right hip
- M08.852 Other juvenile arthritis, left hip
- M08.859 Other juvenile arthritis, unspecified hip
- M08.86 Other juvenile arthritis, kneeNon-billable
- M08.861 Other juvenile arthritis, right knee
- M08.862 Other juvenile arthritis, left knee
- M08.869 Other juvenile arthritis, unspecified knee
- M08.87 Other juvenile arthritis, ankle and footNon-billable
- M08.871 Other juvenile arthritis, right ankle and foot
- M08.872 Other juvenile arthritis, left ankle and foot
- M08.879 Other juvenile arthritis, unspecified ankle and foot
- M08.88 Other juvenile arthritis, other specified site
- M08.89 Other juvenile arthritis, multiple sites
- M08.9 Juvenile arthritis, unspecifiedNon-billable
- M08.90 Juvenile arthritis, unspecified, unspecified site
- M08.91 Juvenile arthritis, unspecified, shoulderNon-billable
- M08.911 Juvenile arthritis, unspecified, right shoulder
- M08.912 Juvenile arthritis, unspecified, left shoulder
- M08.919 Juvenile arthritis, unspecified, unspecified shoulder
- M08.92 Juvenile arthritis, unspecified, elbowNon-billable
- M08.921 Juvenile arthritis, unspecified, right elbow
- M08.922 Juvenile arthritis, unspecified, left elbow
- M08.929 Juvenile arthritis, unspecified, unspecified elbow
- M08.93 Juvenile arthritis, unspecified, wristNon-billable
- M08.931 Juvenile arthritis, unspecified, right wrist
- M08.932 Juvenile arthritis, unspecified, left wrist
- M08.939 Juvenile arthritis, unspecified, unspecified wrist
- M08.94 Juvenile arthritis, unspecified, handNon-billable
- M08.941 Juvenile arthritis, unspecified, right hand
- M08.942 Juvenile arthritis, unspecified, left hand
- M08.949 Juvenile arthritis, unspecified, unspecified hand
- M08.95 Juvenile arthritis, unspecified, hipNon-billable
- M08.951 Juvenile arthritis, unspecified, right hip
- M08.952 Juvenile arthritis, unspecified, left hip
- M08.959 Juvenile arthritis, unspecified, unspecified hip
- M08.96 Juvenile arthritis, unspecified, kneeNon-billable
- M08.961 Juvenile arthritis, unspecified, right knee
- M08.962 Juvenile arthritis, unspecified, left knee
- M08.969 Juvenile arthritis, unspecified, unspecified knee
- M08.97 Juvenile arthritis, unspecified, ankle and footNon-billable
- M08.971 Juvenile arthritis, unspecified, right ankle and foot
- M08.972 Juvenile arthritis, unspecified, left ankle and foot
- M08.979 Juvenile arthritis, unspecified, unspecified ankle and foot
- M08.98 Juvenile arthritis, unspecified, vertebrae
- M08.99 Juvenile arthritis, unspecified, multiple sites
- M08.9A Juvenile arthritis, unspecified, other specified site
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the M08 range.
Arthritis, Juvenile
Arthritis in children, with onset before 16 years of age. The terms juvenile rheumatoid arthritis (JRA) and juvenile idiopathic arthritis (JIA) refer to classification systems for chronic arthritis in children. Only one subtype of juvenile arthritis (polyarticular-onset, rheumatoid factor-positive) clinically resembles adult rheumatoid arthritis and is considered its childhood equivalent.
Juvenile Ankylosing Spondylitis
Ankylosing spondylitis occurring in children or adolescents.
Oligoarticular Still Disease
Juvenile rheumatoid arthritis affecting four or fewer joints, usually asymmetrically. The most commonly affected joints are the knee, elbow, wrist, and ankle.
Polyarticular Juvenile Idiopathic Arthritis, Rheumatoid Factor Negative
A category of juvenile idiopathic arthritis defined by the presence of arthritis affecting five or more separate joints during the first six months of disease, with negative serologic testing for rheumatoid factor.
Still Disease
An inflammatory disorder most often affecting children. It is characterized by the presence of arthritis, salmon-colored rash, spiking fevers, fatigue, and sore throats.
About the M08 Code Range
Juvenile arthritis is arthritis in children. These codes sit within the group for inflammatory joint conditions.
The subdivisions distinguish unspecified juvenile rheumatoid arthritis (M08.0), juvenile ankylosing spondylitis (M08.1), and juvenile rheumatoid arthritis with systemic onset (M08.2). They also identify seronegative juvenile rheumatoid polyarthritis (M08.3), pauciarticular juvenile rheumatoid arthritis (M08.4), other juvenile arthritis (M08.8), and unspecified juvenile arthritis (M08.9).
Several of these forms split further by site, such as the shoulder, knee, or vertebrae. Their titles also distinguish multiple sites, other specified sites, and unspecified sites where available.
Questions About This Page
How many billable codes are in the M08 range?
Of the 166 codes in this range, 125 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the M08 range classify?
The range classifies juvenile arthritis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
