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Explanation

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Medical Complexity Matrix

Explanation


Assigning a medical complexity status (MCS) category to a patient provides a systematic approach to potential adverse medical events and potential necessary modifications of dental treatment protocols. Although types of dental procedures, length of procedures, and level of trauma varies, the MCS system uses an uncomplicated single extraction as the norm.


View an explanation of the medical complexity status system. Video

Categories

MCS 0 – Patient with no medical problems.

MCS 1 – Patient with a stable and controlled medical disease or condition.

MCS 2 – Patient with an unstable or uncontrolled medical disease or condition.

MCS 3 – Patient needing continuous medical monitoring during any dental procedure.

Subcategories

A – No anticipated adverse medical events. No dental treatment protocol modifications are necessary.

B – Anticipated minor adverse medical events. Dental treatment protocol modifications may be necessary.

C – Anticipated major adverse medical events. Dental treatment protocol modifications are necessary.

Explanation:
Minor adverse medical events – adverse event that can be treated in the dental chair
Major adverse medical events – adverse event that need to be treated in an emergence room/hospital

Medical Complexity Matrix

This table depicts how a patient’s medical condition and anticipated adverse events can be classified into specific MCS categories.

Assess a patient’s MCS category frequently, as medical conditions may change between dental visits.


MCS 0 No medical problems
MCS 1A Patient with a stable and controlled medical disease or condition.
No anticipated adverse medical events.
No dental treatment protocol modifications are necessary.
MCS 1B Patient with a stable and controlled medical disease or condition.
Anticipated minor adverse medical events.
Dental treatment protocol modifications may be necessary.
MCS 1C Patient with a stable and controlled medical disease or condition.
Anticipated major adverse medical events.
Dental treatment protocol modifications are necessary.
MCS 2A Patient with an unstable or uncontrolled medical disease or condition.
No anticipated adverse medical events.
No dental treatment protocol modifications are necessary.
MCS 2B Patient with an unstable or uncontrolled medical disease or condition.
Anticipated minor adverse medical events.
Dental treatment protocol modifications may be necessary.
MCS 2C Patient with an unstable or uncontrolled medical disease or condition.
Anticipated major adverse medical events.
Dental treatment protocol modifications are necessary.
MCS 3 Patient needing continuous medical monitoring during any dental procedure.

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