Final answer:
Diagnoses that relate to a patient's previous medical problem and have no bearing on the patient's present condition should be excluded when coding.
Step-by-step explanation:
When coding, diagnoses that relate to a patient's previous medical problem but do not have any bearing on the patient's present condition should be excluded.
This means that these diagnoses should not be included when assigning codes for the patient's current medical condition.
For example, if a patient had a previous diagnosis of asthma but is currently being treated for a broken leg, the asthma diagnosis would be excluded when coding for the broken leg.