Table 1 Disorders compatible with the surrogate definition of juvenile idiopathic arthritis based on corresponding ICD-10 claim codes
From: Epidemiology and comorbidity of juvenile idiopathic arthritis in Poland– a nationwide study
Disorder | ICD-10 code for JIA (< 16 years of age) | ICD-10 code for transitional pattern (adults) |
|---|---|---|
Juvenile idiopathic arthritis | M08 and extension (0.0, 0.1, 0.2, 0.3, 0.4, 0.8., 0.9) | NA |
Juvenile psoriatic arthritis | M09 and extension (0.0, 0.1, 0.2, 0.8) | NA |
Psoriatic arthritis | L40 with extension (0.5), M07 (0.0, 0.1, 0.2, 0.3) | L40 with extension (0.5), M07 (0.0, 0.1, 0.2, 0.3) |
Rheumatoid arthritis | M06 and extension (0.0, 0.1, 0.2, 0.3, 0.4, 0.8, 0.9) | M05 and extension (0.0, 0.1, 0.2, 0.3, 0.8, 0.9); M06 and extension (0.0, 0.1, 0.2, 0.3, 0.4, 0.8, 0.9) |
Other forms of joint inflammation | M13 and extension (0.0, 0.1, 0.8, 0.9) | NA |
Ankylosing spondylitis | M45 | M45; M46.8, M46.9 (inflammatory axial disease) |