| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Chronic myelomonocytic leukemia | Is a | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Myelodysplastic syndrome with multilineage dysplasia | Is a | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Myelodysplastic syndrome with isolated deletion 5q | Is a | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Therapy-related myelodysplastic syndrome | Is a | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Refractory anemia | Is a | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Myelodysplastic syndrome with ring sideroblasts and single lineage dysplasia | Is a | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Myelodysplastic syndrome with excess blasts | Is a | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Refractory anemia with excess blasts in transformation | Is a | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Myelodysplastic syndrome, no International Classification of Diseases for Oncology subtype | Is a | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Myelodysplastic syndrome | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Myelodysplastic syndrome with ring sideroblasts and single lineage dysplasia | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Refractory anemia with excess blasts in transformation | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Myelodysplastic syndrome with isolated del(5q) | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Monosomy 7 syndrome | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Myelodysplastic syndrome, unspecified | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Myelodysplastic syndrome: Refractory anemia, without ringed sideroblasts, without excess blasts | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 3 | 
| Refractory anaemia with excess blasts (clinical) | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 2 | 
| Refractory anemia without sideroblasts, so stated | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 3 | 
| Refractory anemia with sideroblasts | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 3 | 
| Refractory anemia with excess of blasts | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Refractory anemia with excess of blasts with transformation | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 3 | 
| [X]Refractory anemia, unspecified | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 2 | 
| Myelodysplastic syndrome with excess blasts | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 2 | 
| Refractory cytopenia with multilineage dysplasia and ringed sideroblasts | Is a | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Myelodysplastic syndrome, unclassified by World Health Organization classification | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Myelodysplastic syndrome, unclassified by World Health Organization classification | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Monosomy 7 syndrome | Associated morphology | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Myelodysplastic syndrome, unspecified | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Myelodysplastic syndrome | Associated morphology | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Refractory cytopenia with unilineage dysplasia | Is a | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Childhood myelodysplastic syndrome | Associated morphology | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 2 | 
| Erythropoietic uroporphyria associated with myeloid malignancy | Associated morphology | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Myelodysplastic syndrome with ring sideroblasts and multilineage dysplasia | Is a | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| Myelodysplastic syndrome with single lineage dysplasia | Is a | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier |  | 
| [X]Myelodysplastic syndrome, unspecified | Associated morphology | False | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 | 
| Refractory anaemia with multilineage dysplasia | Associated morphology | True | Myelodysplastic syndrome | Inferred relationship | Existential restriction modifier | 1 |