Tuberculous arthritis of other joints

This code signifies an inflammatory joint condition caused by Mycobacterium tuberculosis infection, affecting any joint other than the spine. It represents a form of extrapulmonary tuberculosis manifesting as arthritis, leading to pain, swelling, and restricted movement in the affected joint.

Apply this code when documentation confirms a diagnosis of tuberculous arthritis in a peripheral joint (e.g., knee, hip, ankle, shoulder, wrist, elbow). This diagnosis is typically supported by positive cultures for M. tuberculosis from synovial fluid or tissue biopsy, or characteristic imaging findings in a patient with a confirmed or suspected tuberculosis infection.

• Always specify the exact joint involved if documented, as more specific codes may exist for certain joints (e.g., A18.01 for tuberculous arthritis of spine).
• Code any associated systemic tuberculosis or other manifestations of tuberculosis separately.
• Ensure documentation clearly distinguishes tuberculous arthritis from other forms of infectious or inflammatory arthritis.