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Table 2 Entries in the Norwegian Patient Registry (NPR) defined by NOMESCO procedure codes alone without concurrent ICD-codes for hip fracture, numerical summation of subsample

From: The incidence of hip fractures in Norway –accuracy of the national Norwegian patient registry

Subgroup defined by NOMESCO coding alone

Number

Validated reason for hospital stay (n = 329)

 

Coxarthrosis

297

Not identifyable

7

Traumatic necrosis of femoral head

4

Hip fracture not coded with ICD, miscoded

4

Removal of osteosynthesis material or reoperation due to failure

4

Lower leg fracture, miscoded

3

Distal femoral fracture

3

Knee replacement, miscoded

1

Humerus fracture, miscoded

1

Multi-trauma, no hip fracture, miscoded

1

Peri-prosthetic fracture

1

Outpatient control, no operation, miscoded

1

Epiphysiolosis

1

Chondrosarcoma operation with hip prothetics

1