Other secondary chronic gout, vertebrae, with tophus (tophi)

This code signifies a chronic form of gout that has developed as a secondary condition, specifically affecting the vertebrae. The presence of tophi, which are deposits of uric acid crystals, is a key characteristic of this particular manifestation. This indicates advanced or poorly controlled gout impacting the spinal column.

Apply this code when documentation clearly indicates chronic gout in the vertebrae, explicitly stating it is secondary to another underlying condition. The physician's notes must also confirm the presence of tophaceous deposits within the affected spinal region. This code is appropriate for patients presenting with back pain, neurological symptoms, or imaging findings consistent with vertebral tophi in the context of chronic secondary gout.

• Ensure documentation specifies "secondary" gout and not primary gout, as this impacts code selection.
• Confirm the anatomical site is explicitly "vertebrae" and not another joint or soft tissue.
• Verify the presence of "tophus" or "tophi" is clearly documented; absence of tophi would lead to a different code.