Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core
Descriptions:
| Id | Description | Lang | Type | Status | Case? | Module | 
| 147873015 | Proton | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core | 
| 147874014 | Hydrogen ion | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core | 
| 147875010 | H^+^ | en | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core | 
| 508388014 | Protons | en | Synonym (core metadata concept) | Inactive | Entire term case insensitive (core metadata concept) | SNOMED CT core | 
| 832015018 | Proton (substance) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core | 
| 2490001000052111 | proton | sv | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT Sweden NRC maintained module (core metadata concept) | 
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Proton | Is a | Chemical element | false | Inferred relationship | Some | ||
| Proton | Is a | Subatomic particle | true | Inferred relationship | Some | ||
| Proton | Is a | Electrolyte cation (substance) | true | Inferred relationship | Some | ||
| Proton | Is a | Hydrogen | true | Inferred relationship | Some | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| External beam radiation therapy protons | Using | False | Proton | Inferred relationship | Some | |
| External beam radiation therapy of 1 to 25 mega electronvolt protons (procedure) | Direct substance | False | Proton | Inferred relationship | Some | 1 | 
| External beam radiation therapy of 1 to 25 mega electronvolt protons (procedure) | Using | False | Proton | Inferred relationship | Some | |
| Proton therapy | Using | False | Proton | Inferred relationship | Some | |
| External beam radiation therapy of 1 to 25 mega electronvolt protons (procedure) | Direct substance | True | Proton | Inferred relationship | Some | 1 | 
| Urine dipstick for pH | Component | True | Proton | Inferred relationship | Some | 1 | 
| pH of umbilical cord venous blood | Component | True | Proton | Inferred relationship | Some | 1 | 
| pH of umbilical cord arterial blood | Component | True | Proton | Inferred relationship | Some | 1 | 
This concept is not in any reference sets