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Medical Complexity Status

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.


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, which may include multimorbidities.

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

Related Pages#

References/Websites#