| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Primary atelectasis, in perinatal period | Is a | Perinatal atelectasis | true | Inferred relationship | Existential restriction modifier |  |  | 
| Primary atelectasis, in perinatal period | Associated morphology | Collapse | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary atelectasis, in perinatal period | Occurrence | Fetal period | false | Inferred relationship | Existential restriction modifier |  |  | 
| Primary atelectasis, in perinatal period | Occurrence | Neonatal | false | Inferred relationship | Existential restriction modifier |  |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary atelectasis, in perinatal period | Finding site | Fetal structure | false | Inferred relationship | Existential restriction modifier |  |  | 
| Primary atelectasis, in perinatal period | Occurrence | Perinatal state | false | Inferred relationship | Existential restriction modifier |  |  | 
| Primary atelectasis, in perinatal period | Associated morphology | Congenital incomplete expansion | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Primary atelectasis, in perinatal period | Occurrence | Perinatal period | false | Inferred relationship | Existential restriction modifier |  |  | 
| Primary atelectasis, in perinatal period | Finding site | Structure of respiratory system subdivision | false | Inferred relationship | Existential restriction modifier |  |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Primary atelectasis, in perinatal period | Occurrence | Congenital | false | Inferred relationship | Existential restriction modifier |  |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Primary atelectasis, in perinatal period | Occurrence | Neonatal | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary atelectasis, in perinatal period | Finding site | Lung structure | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Primary atelectasis, in perinatal period | Finding site | Structure of respiratory system | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Primary atelectasis, in perinatal period | Occurrence | Early neonatal period | true | Inferred relationship | Existential restriction modifier | 2 |  |