Combining Morphologic Abnormalities

When modeling a concept requiring two role groups with the same body structure but two different morphologies (because a combined morphology does not exist), then those morphologic abnormalities can be combined to create a single morphologic abnormality concept. Keep the newly-created morphologic abnormality concept primitive, as all morphologic abnormality concepts are primitive.

For example

Disorder concept	Associated morphology	Associated morphology	Combined Associated morphology
Calcified hematoma of head (disorder)	Pathologic calcification, calcified structure (morphologic abnormality)	Hematoma (morphologic abnormality)	Calcified hematoma (morphologic abnormality)

Another example is 1076491000119102 |Nontraumatic complete rupture of muscle or tendon structure of rotator cuff of left shoulder (disorder)|.

If this disorder had the same finding site of |Structure of rotator cuff of left shoulder (body structure)| with two different morphologic abnormalities of |Nontraumatic rupture| and |Complete rupture|, then those two morphologic abnormality concepts can be combined to create a single, primitive, morphologic abnormality concept of |Nontraumatic complete rupture (morphologic abnormality)|. This will prevent modeling with two relationship groups.

Instead of modeling as in this stated view:

Model as shown in this stated view:

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