| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Acute anal fissure | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Chronic anal fissure | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cleft hand - first cleft | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cleft hand - central | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cleft hand with syndactyly | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cleft hand with polydactyly | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Gingival cleft | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple associated with childbirth | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Stillman's gingival cleft | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cleft hand | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cheilosis | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of fissure of tooth | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Anal fissure | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital fissure of tongue | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Perleche | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Perleche with candidiasis | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Plicated tongue | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Fissure of nipple | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Coloboma of eyelid | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier |  | 
| Thoracoschisis | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Fissure in skin | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Anal fissure and fistula | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation - delivered | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation - delivered with postnatal complication | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation with antenatal complication | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation with postnatal complication | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Anal fissure and fistula NOS | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation unspecified | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation NOS | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Excision of anal fissure and island flap closure | Direct morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Staphylococcal fissure of lower lip | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Hoof crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Anal fissurectomy | Direct morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Fissurectomy with sphincterotomy | Direct morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Anorectal fissure abscess | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Fissure seal tooth | Direct morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - fissured tongue | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - cracked skin of feet | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - dry/cracked lips | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - cracked nipple | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - dry lips | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Fissure seal tooth | Indirect morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Toe crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Quarter crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Fissure and fistula of nipple | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - dry/cracked lips | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Fissure in skin | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - fissured tongue | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Acute anal fissure | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Chronic anal fissure | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Stillman's gingival cleft | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Gingival cleft | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation NOS | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - cracked nipple | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital fissure of tongue | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation unspecified | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Anal fissure | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Excision of anal fissure and island flap closure | Direct morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple associated with childbirth | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Perleche | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Anal fissurectomy | Direct morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation with postnatal complication | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - dry lips | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Fissurectomy with sphincterotomy | Direct morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 2 | 
| Cracked nipple in pregnancy, the puerperium or lactation with antenatal complication | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation - delivered | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cracked nipple in pregnancy, the puerperium or lactation - delivered with postnatal complication | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Perleche with candidiasis | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Fissure of nipple | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Cheilosis | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Fissure seal tooth | Indirect morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Staphylococcal fissure of lower lip | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Hoof crack | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| On examination - cracked skin of feet | Associated morphology | False | Fissure | Inferred relationship | Existential restriction modifier | 1 | 
| Plicated tongue | Associated morphology | True | Fissure | Inferred relationship | Existential restriction modifier | 1 |