Non-Radiographic Axial Spondyloarthritis

**Definition:** Chronic inflammatory conditions affecting the axial joints which cannot be detectable on x-rays. It is characterized by pain, stiffness of joints and inflammation. Non-radiographic axial spondyloarthritis can have symptoms onset before the age of 45 and progress to more severe ANKYLOSING SPONDYLITIS over time.

**Tree numbers:** - C05.116.900.853.625.800.744.250 - C05.550.069.340.250 - C05.550.114.865.800.744.250

**Synonyms:** - Nr-axSpA