Source Code Name Case count Share of cases (%)
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M255) Pain in joint. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 69222
OUTPAT OUTPAT_ICD10(M255) Pain in joint 39097
OUTPAT OUTPAT_ICD10(M232) Derangement of meniscus due to old tear or injury 24350
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M239) Internal derangement of knee, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 15946
OUTPAT OUTPAT_ICD10(M201) Hallux valgus (acquired) 13752
OUTPAT OUTPAT_ICD10(M239) Internal derangement of knee, unspecified 7611
INPAT INPAT_ICD10(M232) Derangement of meniscus due to old tear or injury 6450
OUTPAT OUTPAT_ICD10(M204) Other hammer toe(s) (acquired) 6296
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M201) Hallux valgus (acquired). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 6219
INPAT INPAT_ICD10(M201) Hallux valgus (acquired) 5772
OUTPAT OUTPAT_ICD10(M202) Hallux rigidus 4922
OUTPAT OUTPAT_ICD10(M224) Chondromalacia patellae 4702
OUTPAT OUTPAT_ICD10(M238) Other internal derangements of knee 4527
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M23) Internal derangement of knee. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 4073
OUTPAT OUTPAT_ICD10(M214) Flat foot [pes planus] (acquired) 3656
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M238) Other internal derangements of knee. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 2667
INPAT INPAT_ICD10(M255) Pain in joint 2581
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M214) Flat foot [pes planus] (acquired). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 2486
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M232) Derangement of meniscus due to old tear or injury. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 2452
INPAT INPAT_ICD10(M204) Other hammer toe(s) (acquired) 2434
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M204) Other hammer toe(s) (acquired). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 2126
OUTPAT OUTPAT_ICD10(M244) Recurrent dislocation and subluxation of joint 1875
OUTPAT OUTPAT_ICD10(M252) Flail joint 1839
OUTPAT OUTPAT_ICD10(M242) Disorder of ligament 1748
INPAT INPAT_ICD10(M202) Hallux rigidus 1721
OUTPAT OUTPAT_ICD10(M220) Recurrent dislocation of patella 1649
INPAT INPAT_ICD10(M224) Chondromalacia patellae 1622
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M254) Effusion of joint. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 1444
OUTPAT OUTPAT_ICD10(M233) Other meniscus derangements 1368
INPAT INPAT_ICD10(M238) Other internal derangements of knee 1326
OUTPAT OUTPAT_ICD10(M250) Haemarthrosis 1146
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M224) Chondromalacia patellae. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 1032
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M233) Other meniscus derangements. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 1015
INPAT INPAT_ICD10(M214) Flat foot [pes planus] (acquired) 946
OUTPAT OUTPAT_ICD10(M205) Other deformities of toe(s) (acquired) 913
OUTPAT OUTPAT_ICD10(M235) Chronic instability of knee 845
OUTPAT OUTPAT_ICD10(M248) Other specific joint derangements, not elsewhere classified 826
OUTPAT OUTPAT_ICD10(M259) Joint disorder, unspecified 826
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M202) Hallux rigidus. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 803
OUTPAT OUTPAT_ICD10(M234) Loose body in knee 780
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M259) Joint disorder, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 773
OUTPAT OUTPAT_ICD10(M254) Effusion of joint 760
INPAT INPAT_ICD10(M220) Recurrent dislocation of patella 750
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M25) Other joint disorders, not elsewhere classified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 714
INPAT INPAT_ICD10(M244) Recurrent dislocation and subluxation of joint 709
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M250) Haemarthrosis. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 682
INPAT INPAT_ICD10(M252) Flail joint 632
INPAT INPAT_ICD10(M242) Disorder of ligament 630
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M242) Disorder of ligament. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 619
OUTPAT OUTPAT_ICD10(M221) Recurrent subluxation of patella 589
INPAT INPAT_ICD10(M239) Internal derangement of knee, unspecified 581
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M220) Recurrent dislocation of patella. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 574
OUTPAT OUTPAT_ICD10(M249) Joint derangement, unspecified 488
OUTPAT OUTPAT_ICD10(M240) Loose body in joint 455
OUTPAT OUTPAT_ICD10(M258) Other specified joint disorders 415
OUTPAT OUTPAT_ICD10(M222) Patellofemoral disorders 411
INPAT INPAT_ICD10(M233) Other meniscus derangements 385
INPAT INPAT_ICD10(M235) Chronic instability of knee 379
OUTPAT OUTPAT_ICD10(M23) Internal derangement of knee 365
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M216) Other acquired deformities of ankle and foot. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 350
OUTPAT OUTPAT_ICD10(M217) Unequal limb length (acquired) 346
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M258) Other specified joint disorders. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 339
INPAT INPAT_ICD10(M250) Haemarthrosis 331
INPAT INPAT_ICD10(M205) Other deformities of toe(s) (acquired) 325
OUTPAT OUTPAT_ICD10(M211) Varus deformity, not elsewhere classified 321
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M248) Other specific joint derangements, not elsewhere classified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 320
OUTPAT OUTPAT_ICD10(M253) Other instability of joint 296
OUTPAT OUTPAT_ICD10(M245) Contracture of joint 277
OUTPAT OUTPAT_ICD10(M230) Cystic meniscus 271
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M244) Recurrent dislocation and subluxation of joint. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 269
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M20) Acquired deformities of fingers and toes. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 238
OUTPAT OUTPAT_ICD10(M216) Other acquired deformities of ankle and foot 233
OUTPAT OUTPAT_ICD10(M241) Other articular cartilage disorders 232
INPAT INPAT_ICD10(M221) Recurrent subluxation of patella 229
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M256) Stiffness of joint, not elsewhere classified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 229
OUTPAT OUTPAT_ICD10(M203) Other deformity of hallux (acquired) 223
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M249) Joint derangement, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 222
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M252) Flail joint. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 219
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M235) Chronic instability of knee. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 217
INPAT INPAT_ICD10(M248) Other specific joint derangements, not elsewhere classified 212
INPAT INPAT_ICD10(M234) Loose body in knee 202
OUTPAT OUTPAT_ICD10(M223) Other derangements of patella 201
OUTPAT OUTPAT_ICD10(M228) Other disorders of patella 200
OUTPAT OUTPAT_ICD10(M210) Valgus deformity, not elsewhere classified 197
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M205) Other deformities of toe(s) (acquired). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 194
OUTPAT OUTPAT_ICD10(M257) Osteophyte 188
OUTPAT OUTPAT_ICD10(M215) Acquired clawhand, clubhand, clawfoot and clubfoot 175
OUTPAT OUTPAT_ICD10(M231) Discoid meniscus (congenital) 163
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M229) Disorder of patella, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 161
OUTPAT OUTPAT_ICD10(M243) Pathological dislocation and subluxation of joint, not elsewhere classified 159
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M228) Other disorders of patella. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 153
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M222) Patellofemoral disorders. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 150
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M217) Unequal limb length (acquired). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 149
OUTPAT OUTPAT_ICD10(M229) Disorder of patella, unspecified 136
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M253) Other instability of joint. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 133
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M221) Recurrent subluxation of patella. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 127
OUTPAT OUTPAT_ICD10(M251) Fistula of joint 126
OUTPAT OUTPAT_ICD10(M206) Acquired deformity of toe(s), unspecified 125
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M206) Acquired deformity of toe(s), unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 122
INPAT INPAT_ICD10(M259) Joint disorder, unspecified 119
OUTPAT OUTPAT_ICD10(M256) Stiffness of joint, not elsewhere classified 114
INPAT INPAT_ICD10(M254) Effusion of joint 113
INPAT INPAT_ICD10(M240) Loose body in joint 105
OUTPAT OUTPAT_ICD10(M25) Other joint disorders, not elsewhere classified 105
OUTPAT OUTPAT_ICD10(M2000) Buttonhole deformity of fingers 102
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M22) Disorders of patella. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 98
INPAT INPAT_ICD10(M245) Contracture of joint 94
OUTPAT OUTPAT_ICD10(M236) Other spontaneous disruption of ligament(s) of knee 94
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M203) Other deformity of hallux (acquired). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 87
INPAT INPAT_ICD10(M258) Other specified joint disorders 85
OUTPAT OUTPAT_ICD10(M246) Ankylosis of joint 82
INPAT INPAT_ICD10(M241) Other articular cartilage disorders 77
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M210) Valgus deformity, not elsewhere classified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 75
INPAT INPAT_ICD10(M211) Varus deformity, not elsewhere classified 74
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M223) Other derangements of patella. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 72
INPAT INPAT_ICD10(M215) Acquired clawhand, clubhand, clawfoot and clubfoot 69
INPAT INPAT_ICD10(M222) Patellofemoral disorders 69
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M21) Other acquired deformities of limbs. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 69
INPAT INPAT_ICD10(M217) Unequal limb length (acquired) 68
INPAT INPAT_ICD10(M253) Other instability of joint 65
INPAT INPAT_ICD10(M223) Other derangements of patella 64
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M245) Contracture of joint. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 64
INPAT INPAT_ICD10(M203) Other deformity of hallux (acquired) 63
OUTPAT OUTPAT_ICD10(M218) Other specified acquired deformities of limbs 63
INPAT INPAT_ICD10(M231) Discoid meniscus (congenital) 60
INPAT INPAT_ICD10(M257) Osteophyte 60
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M236) Other spontaneous disruption of ligament(s) of knee. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 57
INPAT INPAT_ICD10(M228) Other disorders of patella 55
INPAT INPAT_ICD10(M210) Valgus deformity, not elsewhere classified 54
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M234) Loose body in knee. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 54
INPAT INPAT_ICD10(M249) Joint derangement, unspecified 51
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M243) Pathological dislocation and subluxation of joint, not elsewhere classified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 51
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M257) Osteophyte. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 51
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M240) Loose body in joint. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 50
INPAT INPAT_ICD10(M230) Cystic meniscus 49
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M2008) Deformity of finger(s). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 49
OUTPAT OUTPAT_ICD10(M2001) Swan neck deformity of fingers 46
OUTPAT OUTPAT_ICD10(M2008) Deformity of finger(s) 46
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M218) Other specified acquired deformities of limbs. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 44
OUTPAT OUTPAT_ICD10(M219) Acquired deformity of limb, unspecified 42
INPAT INPAT_ICD10(M216) Other acquired deformities of ankle and foot 41
INPAT INPAT_ICD10(M243) Pathological dislocation and subluxation of joint, not elsewhere classified 40
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M241) Other articular cartilage disorders. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 39
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M215) Acquired clawhand, clubhand, clawfoot and clubfoot. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 38
INPAT INPAT_ICD10(M251) Fistula of joint 37
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M211) Varus deformity, not elsewhere classified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 35
OUTPAT OUTPAT_ICD10(M20) Acquired deformities of fingers and toes 34
OUTPAT OUTPAT_ICD10(M212) Flexion deformity 34
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M219) Acquired deformity of limb, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 34
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M246) Ankylosis of joint. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 34
INPAT INPAT_ICD10(M206) Acquired deformity of toe(s), unspecified 33
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M24) Other specific joint derangements. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 32
INPAT INPAT_ICD10(M229) Disorder of patella, unspecified 27
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M230) Cystic meniscus. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 27
INPAT INPAT_ICD10(M218) Other specified acquired deformities of limbs 25
INPAT INPAT_ICD10(M246) Ankylosis of joint 25
INPAT INPAT_ICD10(M236) Other spontaneous disruption of ligament(s) of knee 22
INPAT INPAT_ICD10(M256) Stiffness of joint, not elsewhere classified 20
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M2001) Swan neck deformity of fingers. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 20
INPAT INPAT_ICD10(M2000) Buttonhole deformity of fingers 18
INPAT INPAT_ICD10(M219) Acquired deformity of limb, unspecified 13
OUTPAT OUTPAT_ICD10(M213) Wrist or foot drop (acquired) 13
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M2000) Buttonhole deformity of fingers. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 13
OUTPAT OUTPAT_ICD10(M247) Protrusio acetabuli 11
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M251) Fistula of joint. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 11
INPAT INPAT_ICD10(M2001) Swan neck deformity of fingers 9
INPAT INPAT_ICD10(M2008) Deformity of finger(s) 9
OUTPAT OUTPAT_ICD10(M22) Disorders of patella 9
OUTPAT OUTPAT_ICD10(M24) Other specific joint derangements 8
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M247) Protrusio acetabuli. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 8
INPAT INPAT_ICD10(M212) Flexion deformity 7
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M213) Wrist or foot drop (acquired). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 6
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(M231) Discoid meniscus (congenital). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 6
INPAT INPAT_ICD10(M25) Other joint disorders, not elsewhere classified 5