Contusion of unspecified knee, subsequent encounter

This code signifies a bruise to an unspecified knee, meaning the exact location (e.g., anterior, posterior) on the knee is not specified. It indicates that the patient is receiving follow-up care for the injury after the initial encounter.

Use this code for patients presenting for subsequent treatment, evaluation, or management of a knee contusion where the specific site of the contusion on the knee is not documented. This applies to scenarios such as follow-up appointments for pain management, wound care if applicable, or reassessment of the injury's healing progress.

• Ensure documentation clearly indicates a subsequent encounter for the contusion, not the initial injury.
• If the specific site of the knee contusion is documented (e.g., anterior, posterior), use a more specific code from the S80.01-S80.02 series.
• Always sequence this code after any applicable external cause codes (e.g., W00-Y38) if the cause of the injury is known and documented.