Presence of unspecified artificial knee joint

This code indicates that a patient has an artificial knee joint, but the specific type or laterality (left or right) of the prosthesis is not documented. It signifies the presence of a knee replacement without further detail.

This code is appropriate when a patient's medical record clearly states the presence of a knee prosthesis, but lacks information regarding whether it's a left or right knee, or the specific type of artificial joint (e.g., total, partial). It can be used for follow-up care, complications, or other conditions where the presence of the unspecified artificial knee is relevant to the patient's care.

• Only use this code when documentation explicitly states "unspecified" or when laterality/type of artificial knee is genuinely unknown and cannot be clarified.
• Prioritize more specific codes (e.g., Z96.651, Z96.652, Z96.653, Z96.654) if the laterality or type of artificial knee is documented.
• Do not use this code if the patient has a history of knee replacement but the prosthesis is no longer present (e.g., explanted).