Other chronic osteomyelitis, left thigh

This code signifies a persistent, long-standing infection of the bone marrow and bone tissue specifically located in the left thigh. It indicates an osteomyelitis that has not resolved acutely and continues to cause inflammation and bone destruction.

Use this code when documentation clearly states "chronic osteomyelitis" affecting the left femur. This diagnosis is typically supported by imaging studies (e.g., X-ray, MRI, bone scan) showing characteristic chronic changes, along with clinical signs and symptoms of ongoing infection.

• Ensure the documentation specifies "chronic" osteomyelitis; acute osteomyelitis of the left thigh would be coded differently.
• Verify the laterality (left) and anatomical site (thigh) are explicitly stated in the medical record.
• Consider any associated conditions, such as a pathological fracture or presence of a draining sinus, which may require additional codes.