Other musculoskeletal tuberculosis

📋Clinical Description

This code signifies a tuberculosis infection affecting musculoskeletal structures other than the spine. It encompasses various forms of extrapulmonary TB impacting bones, joints, and soft tissues, excluding Pott's disease. This diagnosis indicates an active mycobacterial infection within the musculoskeletal system.

🎯When to Use

Use this code for documented cases of tuberculosis osteomyelitis (excluding vertebral), tuberculous arthritis, tenosynovitis, bursitis, or myositis. Documentation should clearly specify the musculoskeletal site involved and confirm a diagnosis of tuberculosis through culture, biopsy, or strong clinical evidence.

💡Coding Tips

Always specify the exact anatomical site of the musculoskeletal tuberculosis with an additional code if available and clinically appropriate.
Distinguish carefully between active infection (A18.09) and sequelae of past tuberculosis (B90.9).
Do not use this code for tuberculosis of the spine (Pott's disease), which has a more specific code.

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Clinical Notes

Inclusion Terms

Tuberculous myositis
Tuberculous synovitis
Tuberculous tenosynovitis

Code Hierarchy

▲A18.0Tuberculosis of bones and joints

A18.09(current)

Crosswalks

015.90ApproxICD-9

Same Category

A18Tuberculosis of other organs A18.0Tuberculosis of bones and joints A18.01Tuberculosis of spine A18.02Tuberculous arthritis of other joints A18.03Tuberculosis of other bones