Source Code Name Case count Share of cases (%)
OUTPAT OUTPAT_ICD10(M45) Ankylosing spondylitis 3497
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M45) Ankylosing spondylitis. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 2350
OUTPAT OUTPAT_ICD10(M461) Sacroiliitis, not elsewhere classified 1912
OUTPAT OUTPAT_ICD10(M469) Inflammatory spondylopathy, unspecified 1757
INPAT INPAT_ICD10(M45) Ankylosing spondylitis 1653
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M461) Sacroiliitis, not elsewhere classified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 780
INPAT INPAT_ICD8(71310) Osteo-arthritis and allied conditions, Spondylarthritis cervicalis 646
INPAT INPAT_ICD8(71312) Osteo-arthritis and allied conditions, Spondylarthritis lumbalis sive lumbosacralis 631
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M469) Inflammatory spondylopathy, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 540
INPAT INPAT_ICD9(7200A) Ankylosing spondylitis 508
INPAT INPAT_ICD10(M464) Discitis, unspecified 434
INPAT INPAT_ICD8(71240) Rheumatoid arthritis and allied conditions, Spondylitis ankylopoietica 432
OUTPAT OUTPAT_ICD10(M464) Discitis, unspecified 430
INPAT INPAT_ICD10(M469) Inflammatory spondylopathy, unspecified 388
INPAT INPAT_ICD10(M463) Infection of intervertebral disc (pyogenic) 348
OUTPAT OUTPAT_ICD10(M463) Infection of intervertebral disc (pyogenic) 302
INPAT INPAT_ICD10(M461) Sacroiliitis, not elsewhere classified 263
OUTPAT OUTPAT_ICD10(M468) Other specified inflammatory spondylopathies 217
OUTPAT OUTPAT_ICD10(M460) Spinal enthesopathy 190
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M464) Discitis, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 102
OUTPAT OUTPAT_ICD10(M462) Osteomyelitis of vertebra 98
INPAT INPAT_ICD8(71319) Osteo-arthritis and allied conditions, Spondylarthritis NUD 81
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M468) Other specified inflammatory spondylopathies. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 76
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M463) Infection of intervertebral disc (pyogenic). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 74
OUTPAT OUTPAT_ICD10(M465) Other infective spondylopathies 66
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M460) Spinal enthesopathy. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 63
INPAT INPAT_ICD10(M462) Osteomyelitis of vertebra 58
INPAT INPAT_ICD8(71311) Osteo-arthritis and allied conditions, Spondylarthritis thoracica 54
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
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M46) Other inflammatory spondylopathies. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 40
INPAT INPAT_ICD10(M460) Spinal enthesopathy 37
INPAT INPAT_ICD10(M465) Other infective spondylopathies 37
INPAT INPAT_ICD10(M468) Other specified inflammatory spondylopathies 30
INPAT INPAT_ICD9(7208A) Other inflammatory spondylopathies 30
DEATH DEATH_ICD10(M45) Ankylosing spondylitis 18
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M462) Osteomyelitis of vertebra. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 11
OUTPAT OUTPAT_ICD10(M46) Other inflammatory spondylopathies 10
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M465) Other infective spondylopathies. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 9
DEATH DEATH_ICD10(M464) Discitis, unspecified 7
INPAT INPAT_ICD8(71313) Name not found 6