SNOMED International has designed this maturity model that allows users to assess the current status of implementation, and facilitates the planning for achieving greater levels of benefits from SNOMED CT.
| Level 0: PLANS TO USE SNOMED CT Not yet used, but there are plans to do so. Current text and other codes. |
| Level 1: MAPPING TO SNOMED CT SNOMED CT not directly recorded in record. Mapping is required. |
| Level 2: SIMPLE CODE SYSTEM SNOMED CT is directly recorded in record. Used as a flat list of codes. | |
| Level 3: HIERARCHY Level 2 + used as hierarchy of codes to support various system functions. | |
| Level 4: SEMANTIC NETWORK Level 3 + used as a semantic network of relationships and simple ECL | |
| Level 5: ADVANCED USE Level 4 + used as an ontology using DL, MRCM, ECL etc |
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