Sprain of unsp collateral ligament of right knee, init

This code signifies a sprain, or stretching/tearing of the fibers, of an unspecified collateral ligament in the right knee. It indicates that the injury is acute and the patient is receiving initial active treatment for this specific sprain. The exact collateral ligament (medial or lateral) involved is not documented or known.

This code is appropriate for documenting a new injury to a collateral ligament of the right knee when the specific ligament (e.g., MCL or LCL) is not identified in the physician's documentation. It should be used for the initial encounter where the patient is actively being treated for the sprain, such as during emergency room visits, initial office visits, or surgical encounters for the acute injury.

• Only use this code when the specific collateral ligament (medial or lateral) is not documented. If specified, use a more precise code.
• The "A" seventh character indicates an initial encounter for active treatment. Subsequent encounters for routine healing or follow-up would require different seventh characters.
• Always review the entire medical record to ensure the right knee is specified and that the encounter truly represents initial treatment.