| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| [SO]Colon NEC | Is a | False | Entire colon (body structure) | Inferred relationship | Some |  | 
| Colon NEC | Is a | False | Entire colon (body structure) | Inferred relationship | Some |  | 
| Panproctocolectomy, anastomosis of ileum to anus and creation of pouch however further qualified | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total colectomy, ileostomy and rectal mucous fistula | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Total colectomy, ileostomy and closure of rectal stump | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 3 | 
| Total abdominal colectomy with proctectomy and ileostomy (procedure) | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Total abdominal colectomy with ileoproctostomy | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Total colonoscopy | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with proctectomy and continent ileostomy | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 3 | 
| Restorative proctocolectomy | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 3 | 
| Total abdominal colectomy with ileostomy | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Entire colic flexure | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Total colonic aganglionosis | Finding site | False | Entire colon (body structure) | Inferred relationship | Some |  | 
| Entire colonic haustra | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Entire appendix epiploica | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Parks panproctocolectomy, anastomosis of ileum to anus and creation of pouch | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Total colectomy and ileostomy | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Cecum and ascending colon, CS | Part of | False | Entire colon (body structure) | Inferred relationship | Some |  | 
| Cecum and ascending colon, CS | Part of | False | Entire colon (body structure) | Inferred relationship | Some |  | 
| Left ventral colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Ampulla coli | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Entire colonic lumen | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Entire colonic mucous membrane (body structure) | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Entire colonic muscularis propria | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Entire right colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Entire transverse colon (body structure) | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Entire left colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Entire sigmoid colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Right ventral colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Total colectomy (procedure) | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Structure of colic flexure | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Right dorsal colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| structuur van flexura coli ter hoogte van diaphragma | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Left dorsal colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Colonic muscularis propria structure | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Transverse colon structure | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Pelvic flexure of colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Right colon structure | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Colonic subserosa | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Left colon structure | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Ansa spiralis of colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Sigmoid colon structure | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Colonic submucosa | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Structure of colonic haustra (body structure) | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Colonic mucous membrane structure | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Structure of appendix epiploica | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Colonic solitary lymphoid nodule | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Total abdominal colectomy with rectal mucosectomy and ileoanal anastomosis | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Sternal flexure of colon | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Circular layer of colonic muscularis propria | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Structure of lumen of colon (body structure) | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Colonic serosa | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Panproctocolectomy and anastomosis of ileum to anus NEC | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Total colectomy and ileostomy NEC | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Other specified total excision of colon | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total excision of colon NOS | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total colectomy, ileostomy and creation of rectal fistula however further qualified | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Total excision of colon and rectum NOS | Procedure site | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Sigmoid colon part (body structure) | Part of | False | Entire colon (body structure) | Additional relationship | Some |  | 
| Total colonoscopy | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Restorative proctocolectomy | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Parks panproctocolectomy, anastomosis of ileum to anus and creation of pouch | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total colectomy and ileostomy | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 3 | 
| Total colectomy, ileostomy and rectal mucous fistula | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Total colectomy, ileostomy and closure of rectal stump | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 3 | 
| Total colectomy (procedure) | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with proctectomy and ileostomy (procedure) | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with ileoproctostomy | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with proctectomy and continent ileostomy | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with ileostomy | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with rectal mucosectomy and ileoanal anastomosis | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total colectomy, ileostomy and creation of rectal fistula however further qualified | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Panproctocolectomy, anastomosis of ileum to anus and creation of pouch however further qualified | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Panproctocolectomy and anastomosis of ileum to anus NEC | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total colectomy and ileostomy NEC | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Other specified total excision of colon | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total excision of colon NOS | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with proctectomy and ileostomy (procedure) | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with proctectomy and continent ileostomy | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Panproctocolectomy, anastomosis of ileum to anus and creation of pouch however further qualified | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Panproctocolectomy and anastomosis of ileum to anus NEC | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with ileoproctostomy | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Parks panproctocolectomy, anastomosis of ileum to anus and creation of pouch | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with ileostomy | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total abdominal colectomy with rectal mucosectomy and ileoanal anastomosis | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Restorative proctocolectomy | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total colonoscopy | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total colectomy, ileostomy and closure of rectal stump | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 3 | 
| Total colectomy, ileostomy and rectal mucous fistula | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Total colectomy and ileostomy | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 3 | 
| Total excision of colon NOS | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Other specified total excision of colon | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total colectomy and ileostomy NEC | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Total colectomy (procedure) | Procedure site - Direct (attribute) | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Total colectomy, ileostomy and creation of rectal fistula however further qualified | Procedure site - Direct (attribute) | False | Entire colon (body structure) | Inferred relationship | Some | 2 | 
| Chronic ulcerative pancolitis | Finding site | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Chronic ulcerative pancolitis | Finding site | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Ulcerative pancolitis (disorder) | Finding site | False | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Ulcerative pancolitis (disorder) | Finding site | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Pneumatosis coli | Finding site | True | Entire colon (body structure) | Inferred relationship | Some | 1 | 
| Abscess of intestine co-occurrent and due to chronic ulcerative pancolitis (disorder) | Finding site | True | Entire colon (body structure) | Inferred relationship | Some | 4 |