Source Code Name Case count Share of cases (%)
OUTPAT OUTPAT_ICD10(M45) Ankylosing spondylitis 3580
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M45) Ankylosing spondylitis. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 2754
OUTPAT OUTPAT_ICD10(M461) Sacroiliitis, not elsewhere classified 2046
OUTPAT OUTPAT_ICD10(M469) Inflammatory spondylopathy, unspecified 1828
INPAT INPAT_ICD10(M45) Ankylosing spondylitis 1763
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M461) Sacroiliitis, not elsewhere classified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 1046
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M469) Inflammatory spondylopathy, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 683
INPAT INPAT_ICD9(7200A) Ankylosing spondylitis 506
INPAT INPAT_ICD8(71240) Rheumatoid arthritis and allied conditions, Spondylitis ankylopoietica 435
INPAT INPAT_ICD10(M469) Inflammatory spondylopathy, unspecified 422
INPAT INPAT_ICD10(M461) Sacroiliitis, not elsewhere classified 279
OUTPAT OUTPAT_ICD10(M468) Other specified inflammatory spondylopathies 227
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M468) Other specified inflammatory spondylopathies. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 96
INPAT INPAT_ICD8(72699) Affection of sacro-iliac joint 53
INPAT INPAT_ICD9(7209X) Unspecified inflammatory spondylopathy 53
INPAT INPAT_ICD9(7202A) Sacroiliitis, not elsewhere classified 46
INPAT INPAT_ICD10(M468) Other specified inflammatory spondylopathies 36
INPAT INPAT_ICD9(7208A) Other inflammatory spondylopathies 30
DEATH DEATH_ICD10(M45) Ankylosing spondylitis 23