Ganglion, unspecified ankle and foot

This code describes a ganglion cyst located in an unspecified area of the ankle or foot. A ganglion is a non-cancerous, fluid-filled sac that typically forms on tendons or joints, often presenting as a palpable lump.

Use this code when documentation confirms the presence of a ganglion cyst in the ankle or foot, but the specific laterality (right or left) or precise anatomical location within the ankle/foot is not specified. This code is appropriate when the provider's notes indicate "ganglion of ankle" or "ganglion of foot" without further detail.

• Avoid using this code if laterality (right or left) is documented; instead, choose a more specific code from the M67.47- subcategory.
• Ensure the documentation clearly identifies the lesion as a ganglion cyst and not another type of soft tissue mass.
• If the exact anatomical site within the ankle/foot is known (e.g., dorsal foot, lateral ankle), look for more specific codes within M67.47.