Ankylosing spondylitis sacral and sacrococcygeal region

This code signifies a chronic inflammatory arthropathy primarily affecting the sacroiliac joints and the sacrococcygeal region of the spine. It is characterized by progressive stiffness and pain, often leading to fusion of the vertebrae. The condition is a form of spondyloarthritis.

Apply this code when documentation explicitly states a diagnosis of ankylosing spondylitis with specific involvement of the sacral and/or sacrococcygeal areas. This diagnosis is typically supported by imaging findings (e.g., sacroiliitis on X-ray or MRI) and clinical symptoms such as inflammatory back pain.

• Ensure the documentation specifies the sacral and/or sacrococcygeal region involvement; otherwise, a more general ankylosing spondylitis code might be appropriate.
• Do not confuse with other forms of spondyloarthropathies or non-inflammatory back pain conditions.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the encounter, or as a secondary diagnosis if it is a co-morbidity impacting care.