Major contusion of unspecified kidney, initial encounter

This code signifies a significant bruise or blunt injury to an unspecified kidney, indicating damage to the renal parenchyma without specifying the laterality. It implies a substantial impact that has caused bleeding within the kidney tissue.

This code is appropriate for the initial encounter of a patient presenting with symptoms such as flank pain, hematuria, or tenderness following blunt abdominal trauma, where diagnostic imaging (e.g., CT scan) confirms a major contusion of a kidney, but the specific side (left or right) is not documented.

• Ensure documentation clearly states "major contusion" and that the kidney's laterality is not specified.
• Always look for documentation of laterality (left or right) to use a more specific code if available.
• This code is for the initial encounter; subsequent encounters for the same injury will require different seventh characters.