| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Central cleft lip | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Unilateral cleft lip | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Bilateral cleft lip | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft palate with cleft lip | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft lip sequence | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cheilognathoschisis | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Van der Woude syndrome | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft lip, unspecified | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft lip NOS | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| History of cleft lip | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| History of cleft lip | Associated finding | True | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Family history of cleft lip | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Family history of cleft lip | Associated finding | True | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Unilateral complete cleft lip and/or alveolus | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Unilateral cleft lip | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Unilateral incomplete cleft lip | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Unilateral complete cleft lip | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Unilateral complete cleft lip and/or alveolus | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Unilateral complete cleft lip | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Unilateral incomplete cleft lip | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Family history of cleft lip | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Unilateral cleft lip | Associated finding | False | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Familial median cleft of upper and lower lip | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft palate and cleft lip with deafness and sacral lipoma syndrome | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft of hard palate and cleft lip | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Auriculoocular anomaly and cleft lip syndrome | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Median cleft of upper lip, corpus callosum lipoma, cutaneous polyp syndrome | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Microbrachycephaly, ptosis, cleft lip syndrome | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Midline cleft of lower lip | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Auricular abnormality, cleft lip, ocular abnormality syndrome | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft lip retinopathy syndrome | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft lip and cleft of alveolar process of maxilla | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Right cleft lip | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Left cleft lip | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Millard operation, cleft lip repair | Has focus | True | Cleft lip | Inferred relationship | Existential restriction modifier | 2 | 
| Lemesurier operation, cleft lip repair | Has focus | True | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Repair of cleft lip | Has focus | True | Cleft lip | Inferred relationship | Existential restriction modifier | 1 | 
| Thompson operation, cleft lip repair | Has focus | True | Cleft lip | Inferred relationship | Existential restriction modifier | 2 | 
| Repair of partial cleft lip | Has focus | False | Cleft lip | Inferred relationship | Existential restriction modifier | 2 | 
| Rhinocheiloplasty repair for cleft lip | Has focus | True | Cleft lip | Inferred relationship | Existential restriction modifier | 3 | 
| Congenital macrostomia of right side of mouth | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Congenital macrostomia of left side of mouth | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Incomplete cleft lip | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Repair of cleft lip with triangular flap | Has focus | True | Cleft lip | Inferred relationship | Existential restriction modifier | 2 | 
| Repair of cleft lip using straight line technique | Has focus | True | Cleft lip | Inferred relationship | Existential restriction modifier | 2 | 
| Complete cleft lip | Is a | True | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft lip, unspecified | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  | 
| Cleft lip NOS | Is a | False | Cleft lip | Inferred relationship | Existential restriction modifier |  |