Ankylosis, right foot

This code signifies the pathological stiffening and immobility of a joint in the right foot, resulting from fusion of the bones. This condition can be caused by various factors, including chronic inflammation, trauma, or degenerative processes, leading to significant functional impairment.

This code is appropriate for documenting a confirmed diagnosis of ankylosis affecting any joint within the right foot. Documentation should clearly state the presence of joint fusion or severe immobility, specifying the right foot as the affected anatomical site. This code is often used following imaging studies (e.g., X-rays, CT scans) that confirm the bony fusion.

• Ensure documentation specifies "right foot" to differentiate from other foot laterality or unspecified sites.
• Do not confuse with arthrodesis (surgical fusion), which is a procedure code, not a diagnosis.
• Consider sequencing this code after any underlying conditions (e.g., rheumatoid arthritis, severe osteoarthritis) that led to the ankylosis.