Other bursal cyst, right ankle and foot

This code signifies the presence of a non-inflammatory, fluid-filled sac (bursa) located in the right ankle or foot region, distinct from other specified types of bursitis or cysts. It represents an abnormal accumulation of synovial fluid within a bursa, causing a palpable mass.

Apply this code when documentation clearly identifies a bursal cyst on the patient's right ankle or foot, and the provider has not specified it as a ganglion cyst, synovial cyst, or other more specific bursal condition. Supporting documentation should include imaging reports (e.g., ultrasound, MRI) confirming the cyst's nature and location, or a physician's direct observation and diagnosis.

• Ensure the documentation specifies "bursal cyst" and not a ganglion cyst or synovial cyst, as these have different codes.
• Verify the laterality (right ankle/foot) is clearly documented; incorrect laterality is a common coding error.
• Do not use this code for inflammatory conditions of the bursa (bursitis); those are classified under M70.- or M71.0-.