Calcium deposit in bursa, left knee

This code signifies the presence of calcific deposits within the bursa surrounding the left knee joint. This condition, often referred to as calcific bursitis, involves the accumulation of calcium salts, typically hydroxyapatite, within the synovial lining of the bursa, leading to inflammation and pain.

Use this code when documentation explicitly states a calcium deposit or calcification within a bursa of the left knee. This is commonly diagnosed via imaging studies such as X-rays, ultrasound, or MRI, which confirm the presence and location of the calcification.

• Ensure the documentation specifies "bursa" and not other soft tissues around the knee, such as tendons or ligaments.
• Verify laterality; this code is specific to the left knee.
• Do not confuse with calcific tendinitis (M65.2- series) or other forms of bursitis without calcification (M70.- series).