| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Entire skin of upper arm | Is a | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier |  | 
| Skin of part of upper arm | Is a | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier |  | 
| Abrasion, upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Insect bite, nonvenomous, of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Traumatic blister of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial injury of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Scratch of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Wood splinter in upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 3 | 
| Cut of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Foreign body in skin of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Neoplasm of skin of arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial injury of upper arm with infection | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Blister of upper arm without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial foreign body of upper arm without major open wound but with infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial injury of upper arm without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Nonvenomous insect bite of upper arm without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Epidermal burn of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Excision of excessive skin and subcutaneous tissue of arm | Procedure site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 4 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Furuncle of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Benign neoplasm of skin of arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant melanoma of skin of arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary malignant neoplasm of skin of arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Neoplasm of uncertain behavior of skin of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant neoplasm of skin of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Benign neoplasm of skin of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Abrasion of upper arm, infected | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Splinter of upper arm, without major open wound | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Splinter of upper arm, without major open wound, infected | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial partial thickness burn of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Deep partial thickness burn of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Traumatic blister of upper arm, infected | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial injury of upper arm NOS | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 5 | 
| Nonvenomous insect bite of upper arm with infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Abrasion and/or friction burn of upper arm without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Abrasion and/or friction burn of upper arm with infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Blister of upper arm with infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 5 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 5 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Boil of upper arm and forearm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Carbuncle of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Carbuncle of upper arm and forearm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Carbuncle of upper arm and forearm NOS | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Epidermal burn of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Carbuncle of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant neoplasm of skin of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Neoplasm of skin of arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Scratch of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Abrasion of upper arm, infected | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial partial thickness burn of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Deep partial thickness burn of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Nonvenomous insect bite of upper arm without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Nonvenomous insect bite of upper arm with infection | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary malignant neoplasm of skin of arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial injury of upper arm NOS | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial injury of upper arm without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Partial thickness burn of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Partial thickness burn of multiple sites of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Benign neoplasm of skin of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Insect bite, nonvenomous, of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Cut of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial foreign body of upper arm without major open wound AND without infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Foreign body in skin of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Traumatic blister of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Neoplasm of uncertain behavior of skin of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Furuncle of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant melanoma of skin of arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Abrasion, upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Blister of upper arm without infection | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Abrasion and/or friction burn of upper arm with infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Abrasion and/or friction burn of upper arm without infection | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial injury of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Partial thickness burn of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Partial thickness burn of multiple sites of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial injury of upper arm with infection | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Blister of upper arm with infection | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Epidermal burn of multiple sites of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Metastatic malignant neoplasm to skin of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant melanoma of skin of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Neoplasm of skin of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Escharotomy of burnt skin of upper arm | Procedure site - Direct | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial frostbite of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Reduction of batwing arms | Procedure site - Direct | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Abrasion and/or friction burn of upper arm with infection | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Abrasion of upper arm, infected | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Carbuncle of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 2 | 
| Insect bite, nonvenomous, of shoulder and upper arm, infected | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Superficial frostbite of upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Abrasion of skin of upper arm | Finding site | False | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 | 
| Structure of hair follicle of upper arm | Is a | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier |  | 
| Skin structure of right upper arm | Is a | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier |  | 
| Skin structure of left upper arm | Is a | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier |  | 
| Superficial injury of shoulder and upper arm | Finding site | True | Skin structure of upper arm | Inferred relationship | Existential restriction modifier | 1 |