| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Entire articular cartilage | Is a | True | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Structure of articular cartilage of upper limb | Is a | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Structure of articular cartilage of lower limb | Is a | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Structure of labrum of acetabulum | Is a | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrodiastasis | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Hill-Sachs lesion | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Reverse Hill-Sachs lesion | Finding site | True | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Sprain of costal cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Overlapping malignant neoplasm of bone and articular cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Overlapping malignant neoplasm of bone and articular cartilage of limb | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Relapsing polychondritis of larynx | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Idiopathic chondrocalcinosis | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Familial chondrocalcinosis | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary chondrocalcinosis | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Contusion of articular cartilage | Finding site | True | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Defect of articular cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrolysis of articular cartilage | Finding site | True | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Costal cartilage injury | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Fracture of costal cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Dislocation of costal cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Traumatic division of costal cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Subchondral hematoma | Finding site | True | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Perichondritis of larynx | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Benign neoplasm of articular cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Neoplasm of articular cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Metastatic malignant neoplasm to articular cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Primary malignant neoplasm of articular cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Neoplasm of uncertain behavior of articular cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Primary localized osteoarthrosis of shoulder region | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Articular cartilage disorder of shoulder region | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Primary localized osteoarthrosis of upper arm | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Division of cartilage of hip | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Localized chondromalacia | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary localized osteoarthrosis of pelvic region | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Division of cartilage of finger | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Sprain of chondrocostal joint without injury to sternum | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Tietze's disease | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Perichondritis of pinna | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Perichondritis | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Primary localized osteoarthrosis of hand | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Tibial plateau chondromalacia | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Primary localized osteoarthrosis of thigh | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chronic perichondritis of pinna | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Acute perichondritis of pinna | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondritis | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Division of cartilage of foot and toe | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Articular cartilage disorder | Finding site | True | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Articular cartilage disorder of pelvic region | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Primary localized osteoarthrosis of lower leg | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondromalacia | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Division of cartilage of elbow | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Articular cartilage disorder of thigh | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Costal chondritis | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Division of cartilage of shoulder | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrectomy of hip | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Relapsing polychondritis | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Elastotic nodules of antihelix | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Division of cartilage of ankle | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Division of joint cartilage | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrodermatitis nodularis helicis | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Division of cartilage of hand | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Division of cartilage of wrist | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Primary localized osteoarthrosis of pelvic region | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Articular cartilage disorder of multiple sites | Finding site | True | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Articular cartilage disorder of lower leg | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Articular cartilage disorder of ankle AND/OR foot | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Articular cartilage disorder of hand | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Articular cartilage disorder of upper arm | Finding site | True | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Articular cartilage disorder of forearm | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Neoplasm of uncertain behavior of bone and articular cartilage | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Open drilling of articular cartilage | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Open excision of articular cartilage of joint | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic drilling of lesion of articular cartilage | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic fixation of lesion of articular cartilage | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic shaving of articular cartilage | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis due to dicalcium phosphate crystals | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis due to dicalcium phosphate crystals, of multiple sites | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 2 | 
| Chondrocalcinosis due to pyrophosphate crystals | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis due to pyrophosphate crystals, of multiple sites | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Articular cartilage disorder, excluding the knee | Finding site | True | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocostal joint sprain | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Joint cartilage division | Procedure site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Unspecified perichondritis of pinna | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Perichondritis of pinna NOS | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis due to dicalcium phosphate crystals, of unspecified site | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis due to dicalcium phosphate crystals, of other specified site | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis due to dicalcium phosphate crystals, NOS | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis due to pyrophosphate crystals, of unspecified site | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis due to pyrophosphate crystals, of other specified site | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis due to pyrophosphate crystals, NOS | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier | 1 | 
| Chondrocalcinosis, unspecified | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrocalcinosis unspecified, of unspecified site | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrocalcinosis unspecified, of the shoulder region | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrocalcinosis unspecified, of the upper arm | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrocalcinosis unspecified, of the forearm | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrocalcinosis unspecified, of the hand | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrocalcinosis unspecified, of the pelvic region and thigh | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrocalcinosis unspecified, of the lower leg | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrocalcinosis unspecified, of the ankle and foot | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  | 
| Chondrocalcinosis unspecified, of multiple sites | Finding site | False | Structure of articular cartilage | Inferred relationship | Existential restriction modifier |  |