Source Code Name Case count Share of cases (%)
OUTPAT OUTPAT_ICD10(M45) Ankylosing spondylitis 3544
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M45) Ankylosing spondylitis. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 2576
OUTPAT OUTPAT_ICD10(M461) Sacroiliitis, not elsewhere classified 1988
OUTPAT OUTPAT_ICD10(M469) Inflammatory spondylopathy, unspecified 1800
INPAT INPAT_ICD10(M45) Ankylosing spondylitis 1724
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M461) Sacroiliitis, not elsewhere classified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 926
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M469) Inflammatory spondylopathy, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 611
INPAT INPAT_ICD9(7200A) Ankylosing spondylitis 508
INPAT INPAT_ICD8(71240) Rheumatoid arthritis and allied conditions, Spondylitis ankylopoietica 432
INPAT INPAT_ICD10(M469) Inflammatory spondylopathy, unspecified 405
INPAT INPAT_ICD10(M461) Sacroiliitis, not elsewhere classified 271
OUTPAT OUTPAT_ICD10(M468) Other specified inflammatory spondylopathies 220
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M468) Other specified inflammatory spondylopathies. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 90
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 47
INPAT INPAT_ICD10(M468) Other specified inflammatory spondylopathies 33
INPAT INPAT_ICD9(7208A) Other inflammatory spondylopathies 30
DEATH DEATH_ICD10(M45) Ankylosing spondylitis 22