Ganglion, unspecified hand

This code represents a ganglion cyst located in an unspecified area of the hand. A ganglion is a non-cancerous, fluid-filled sac that typically forms on joints or tendons, often appearing as a lump under the skin. It results from a leakage of synovial fluid from a joint or tendon sheath.

Use this code when documentation specifies a ganglion cyst of the hand, but the exact anatomical location (e.g., wrist, finger) is not specified. This code is appropriate when the provider's notes clearly identify a ganglion and its general location as the hand, without further detail.

• Avoid using this code if a more specific anatomical site within the hand (e.g., M67.43- for wrist, M67.44- for finger) is documented.
• Ensure the documentation explicitly states "ganglion" or "ganglion cyst" and "hand."
• Do not confuse with other soft tissue masses or tumors; this code is specific to ganglion cysts.