Hip Pain and Mobility Deficits—Hip Osteoarthritis

Clinicians should use the following criteria to classify adults over the age of 50 years into the International Statistical Classification of Diseases and Related Health Problems (ICD) category of coxarthrosis and the associated International Classification of Functioning, Disability and Health (ICF) impairment-based category of hip pain (b28016 Pain in joints) and mobility deficits (b7100 Mobility of a single joint): moderate anterior or lateral hip pain during weight-bearing activities, morning stiffness less than 1 hour in duration after wakening, hip internal rotation range of motion less than 24° or internal rotation and hip flexion 15° less than the nonpainful side, and/or increased hip pain associated with passive hip internal rotation. (A)