Sprain of other ligament of right ankle, initial encounter

This diagnosis indicates an injury to a ligament in the right ankle, other than the common anterior talofibular, calcaneofibular, or posterior talofibular ligaments. It signifies a stretching or tearing of these less frequently injured supporting structures of the ankle joint. The "initial encounter" designation means this is the first time the patient is receiving active treatment for this specific injury.

Assign this code when documentation specifies a sprain of an "other" or "unspecified" ligament of the right ankle, such as the deltoid ligament or a syndesmotic ligament, during the acute phase of treatment. This code is appropriate for initial evaluations, diagnostic workups, and the beginning of therapeutic interventions for a newly diagnosed right ankle sprain involving ligaments not otherwise specified.

• Ensure the documentation explicitly states "right ankle" and specifies a ligament other than the common lateral ankle ligaments.
• Confirm the encounter is for the initial treatment of the injury; subsequent encounters will require different seventh characters.
• If the specific ligament is identified (e.g., deltoid ligament), a more specific code may be available and should be used.