{
    "resourceType": "CodeSystem",
    "id": "extraoral-2d-photographic-scheduled-protocol",
    "url": "https://terminology.open-ortho.org/fhir/sid/ada1100/CodeSystem/extraoral-2d-photographic-scheduled-protocol",
    "identifier": [
        {
            "system": "urn:ietf:rfc:3986",
            "value": "urn:oid:1.3.6.1.4.1.61741.11.3.2.1"
        }
    ],
    "version": "2.0.0",
    "name": "Extraoral2DPhotographicScheduledProtocol",
    "title": "Extraoral 2D Photographic Scheduled Protocol",
    "status": "draft",
    "experimental": false,
    "date": "2026-04-28",
    "publisher": "American Dental Association",
    "description": "Common extraoral 2D photographic views used in an orthodontic provider's practice",
    "caseSensitive": true,
    "content": "complete",
    "concept": [
        {
            "code": "EV01",
            "display": "Extraoral photo,right profile,lips relaxed,centric occlusion",
            "definition": "Extraoral, Right Profile (Subject is facing observer's right), Lips Relaxed, Centric Occlusion",
            "designation": [
                {
                    "use": {
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                        "display": "Synonym"
                    },
                    "value": "EV-01"
                },
                {
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                        "display": "Synonym"
                    },
                    "value": "EO.RP.LR.CO"
                }
            ]
        },
        {
            "code": "EV02",
            "display": "Extraoral photo,right profile,lips relaxed,centric relation",
            "definition": "Extraoral, Right Profile (Subject is facing observe right), Lips Relaxed, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
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                    },
                    "value": "EV-02"
                },
                {
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                        "display": "Synonym"
                    },
                    "value": "EO.RP.LR.CR"
                }
            ]
        },
        {
            "code": "EV03",
            "display": "Extraoral photo,right profile,lips closed,centric occlusion",
            "definition": "Extraoral, Right Profile (Subject is facing observer's right), Lips Closed, Centric Occlusion",
            "designation": [
                {
                    "use": {
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                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-03"
                },
                {
                    "use": {
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                        "display": "Synonym"
                    },
                    "value": "EO.RP.LC.CO"
                }
            ]
        },
        {
            "code": "EV04",
            "display": "Extraoral photo,right profile,lips closed,centric relation",
            "definition": "Extraoral, Right Profile (Patient is facing observer's right), Lips Closed, Centric Relation",
            "designation": [
                {
                    "use": {
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                        "display": "Synonym"
                    },
                    "value": "EV-04"
                },
                {
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                        "display": "Synonym"
                    },
                    "value": "EO.RP.LC.CR"
                }
            ]
        },
        {
            "code": "EV05",
            "display": "Extraoral photo,right profile,full smile,centric occlusion",
            "definition": "Extraoral, Right profile (Patient is facing observer's right), Full Smile, Centric Occlusion",
            "designation": [
                {
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                        "code": "900000000000013009",
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                    },
                    "value": "EV-05"
                },
                {
                    "use": {
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                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.RP.FS.CO"
                }
            ]
        },
        {
            "code": "EV06",
            "display": "Extraoral photo,right profile,full smile,centric relation",
            "definition": "Extraoral, Right Profile (Patient is facing observer's right), Full Smile, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-06"
                },
                {
                    "use": {
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                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.RP.FS.CR"
                }
            ]
        },
        {
            "code": "EV07",
            "display": "Extraoral photo,right profile,mandible postured forward",
            "definition": "Extraoral, Right Profile (Patient is facing observer's right), Mandible Postured Forward",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-07"
                },
                {
                    "use": {
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                        "display": "Synonym"
                    },
                    "value": "EO.RP.MD.PF"
                }
            ]
        },
        {
            "code": "EV08",
            "display": "Extraoral photo,right profile 45,lips relaxed,centric occlusion",
            "definition": "Extraoral, 45\u00b0 Right Profile (Patient turns toward observer's right), Lips Relaxed, Centric Occlusion",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-08"
                },
                {
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                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.RP.LR.CO.45"
                }
            ]
        },
        {
            "code": "EV09",
            "display": "Extraoral photo,right profile 45,lips relaxed,centric relation",
            "definition": "Extraoral, 45\u00b0 Right Profile (Patient turns toward observer's right), Lips Relaxed, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-09"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.RP.LR.CR.45"
                }
            ]
        },
        {
            "code": "EV10",
            "display": "Extraoral photo,right profile 45,lips closed,centric occlusion",
            "definition": "Extraoral, 45\u00b0 Right Profile (Patient turns toward observer's right), Lips Closed, Centric Occlusion",
            "designation": [
                {
                    "use": {
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                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-10"
                },
                {
                    "use": {
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                        "display": "Synonym"
                    },
                    "value": "EO.RP.LC.CO.45"
                }
            ]
        },
        {
            "code": "EV11",
            "display": "Extraoral photo,right profile 45,lips closed,centric relation",
            "definition": "Extraoral, 45\u00b0 Right Profile (Patient turns toward observer's right), Lips Closed, Centric Relation",
            "designation": [
                {
                    "use": {
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                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-11"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.RP.LC.CR.45"
                }
            ]
        },
        {
            "code": "EV12",
            "display": "Extraoral photo,right profile 45,full smile,centric occlusion",
            "definition": "Extraoral, 45\u00b0 Right Profile (Patient turns toward observer's right), Full Smile, Centric Occlusion",
            "designation": [
                {
                    "use": {
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                        "display": "Synonym"
                    },
                    "value": "EV-12"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.RP.FS.CO.45"
                }
            ]
        },
        {
            "code": "EV13",
            "display": "Extraoral photo,right profile 45,full smile,centric relation",
            "definition": "Extraoral, 45\u00b0 Right Profile (Patient turns toward observer's right), Full Smile, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-13"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.RP.FS.CR.45"
                }
            ]
        },
        {
            "code": "EV14",
            "display": "Extraoral photo,right profile 45,mandible postured forward",
            "definition": "Extraoral, 45\u00b0 Right Profile (Patient turns toward observer's right), Mandible Postured Forward",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-14"
                },
                {
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                        "display": "Synonym"
                    },
                    "value": "EO.RP.MD.PF.45"
                }
            ]
        },
        {
            "code": "EV15",
            "display": "Extraoral photo,full face,lips relaxed,centric occlusion",
            "definition": "Extraoral, Full Face, Lips Relaxed, Centric Occlusion",
            "designation": [
                {
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                    },
                    "value": "EV-15"
                },
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                        "display": "Synonym"
                    },
                    "value": "EO.FF.LR.CO"
                }
            ]
        },
        {
            "code": "EV16",
            "display": "Extraoral photo,full face,lips relaxed,centric relation",
            "definition": "Extraoral, Full Face, Lips Relaxed, Centric Relation",
            "designation": [
                {
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                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-16"
                },
                {
                    "use": {
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                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.FF.LR.CR"
                }
            ]
        },
        {
            "code": "EV17",
            "display": "Extraoral photo,full face,lips closed,centric occlusion",
            "definition": "Extraoral, Full Face, Lips Closed, Centric Occlusion",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-17"
                },
                {
                    "use": {
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                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.FF.LC.CO"
                }
            ]
        },
        {
            "code": "EV18",
            "display": "Extraoral photo,full face,lips closed,centric relation",
            "definition": "Extraoral, Full Face, Lips Closed, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-18"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.FF.LC.CR"
                }
            ]
        },
        {
            "code": "EV19",
            "display": "Extraoral photo,full face,full smile,centric occlusion",
            "definition": "Extraoral, Full Face, Full Smile, Centric Occlusion",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-19"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.FF.FS.CO"
                }
            ]
        },
        {
            "code": "EV20",
            "display": "Extraoral photo,full face,full smile,centric relation",
            "definition": "Extraoral, Full Face, Full Smile, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-20"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.FF.FS.CR"
                }
            ]
        },
        {
            "code": "EV21",
            "display": "Extraoral photo,full face,mandible postured forward",
            "definition": "Extraoral, Full Face, Mandible Postured Forward",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-21"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.FF.MD.PF"
                }
            ]
        },
        {
            "code": "EV22",
            "display": "Extraoral photo,left profile,lips relaxed,centric occlusion",
            "definition": "Extraoral, Left Profile (Patient is facing observer's left), Lips Relaxed, Centric Occlusion",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-22"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.LR.CO"
                }
            ]
        },
        {
            "code": "EV23",
            "display": "Extraoral photo,left profile,lips relaxed,centric relation",
            "definition": "Extraoral, Left Profile (Patient is facing observer's left), Lips Relaxed, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-23"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.LR.CR"
                }
            ]
        },
        {
            "code": "EV24",
            "display": "Extraoral photo,left profile,lips closed,centric occlusion",
            "definition": "Extraoral, Left Profile (Patient is facing observer's left), Lips Closed, Centric Occlusion",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-24"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.LC.CO"
                }
            ]
        },
        {
            "code": "EV25",
            "display": "Extraoral photo,left profile,lips closed,centric relation",
            "definition": "Extraoral, Left Profile (Patient is facing observer's left), Lips Closed, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-25"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.LC.CR"
                }
            ]
        },
        {
            "code": "EV26",
            "display": "Extraoral photo,left profile,full smile,centric occlusion",
            "definition": "Extraoral, Left profile (Patient is facing observer's left), Full Smile, Centric Occlusion",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-26"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.FS.CO"
                }
            ]
        },
        {
            "code": "EV27",
            "display": "Extraoral photo,left profile,full smile,centric relation",
            "definition": "Extraoral, Left Profile (Patient is facing observer's left), Full Smile, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-27"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.FS.CR"
                }
            ]
        },
        {
            "code": "EV28",
            "display": "Extraoral photo,left profile,mandible postured forward",
            "definition": "Extraoral, Left Profile (Patient is facing observer's left), Mandible Postured Forward",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-28"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.MD.PF"
                }
            ]
        },
        {
            "code": "EV29",
            "display": "Extraoral photo,left profile 45,lips relaxed,centric occlusion",
            "definition": "Extraoral, 45\u00b0 Left Profile (Patient turns toward observer's left), Lips Relaxed, Centric Occlusion",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-29"
                },
                {
                    "use": {
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                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.LR.CO.45"
                }
            ]
        },
        {
            "code": "EV30",
            "display": "Extraoral photo,left profile 45,lips relaxed,centric relation",
            "definition": "Extraoral, 45\u00b0 Left Profile (Patient turns toward observer's left), Lips Relaxed, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-30"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.LR.CR.45"
                }
            ]
        },
        {
            "code": "EV31",
            "display": "Extraoral photo,left profile 45,lips closed,centric occlusion",
            "definition": "Extraoral, 45\u00b0 Left Profile (Patient turns toward observer's left), Lips Closed, Centric Occlusion",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-31"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.LC.CO.45"
                }
            ]
        },
        {
            "code": "EV32",
            "display": "Extraoral photo,left profile 45,lips closed,centric relation",
            "definition": "Extraoral, 45\u00b0 Left Profile (Patient turns toward observer's left), Lips Closed, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-32"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.LC.CR.45"
                }
            ]
        },
        {
            "code": "EV33",
            "display": "Extraoral photo,left profile 45,full smile,centric occlusion",
            "definition": "Extraoral, 45\u00b0 Left Profile (Patient turns toward observer's left), Full Smile, Centric Occlusion",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-33"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.FS.CO.45"
                }
            ]
        },
        {
            "code": "EV34",
            "display": "Extraoral photo,left profile 45,full smile,centric relation",
            "definition": "Extraoral, 45\u00b0 Left Profile (Patient turns toward observer's left, Full Smile, Centric Relation",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-34"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.FS.CR.45"
                }
            ]
        },
        {
            "code": "EV35",
            "display": "Extraoral photo,left profile 45,mandible postured forward",
            "definition": "Extraoral, 45\u00b0 Left Profile (Patient turns toward observer's left, Mandible Postured Forward",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-35"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.LP.MD.PF.45"
                }
            ]
        },
        {
            "code": "EV36",
            "display": "Extraoral photo,other face,inferior view",
            "definition": "Extraoral, Other Face (head tipped back), Inferior View (showing lower border of mandible, nares, infraorbital rim contours, forehead contours)",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-36"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.OF.IV"
                }
            ]
        },
        {
            "code": "EV37",
            "display": "Extraoral photo,other face,superior view",
            "definition": "Extraoral, Other Face (viewed from above), Superior View (showing forehead, infraorbital rim contour, dorsum of nose, upper lip, chin)",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-37"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.OF.SV"
                }
            ]
        },
        {
            "code": "EV38",
            "display": "Extraoral photo,other face,close-up smile",
            "definition": "Extraoral, Other Face, Close-Up Smile (with lips)",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-38"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.OF.CS"
                }
            ]
        },
        {
            "code": "EV39",
            "display": "Extraoral photo,other face,occlusal cant",
            "definition": "Extraoral, Other Face, Occlusal Cant (e.g., tongue depressor between the teeth)",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-39"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.OF.OC"
                }
            ]
        },
        {
            "code": "EV40",
            "display": "Extraoral photo,other face,forensic interest",
            "definition": "Extraoral, Other Face, Forensic Interest (tattoos, jewelry, scars)",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-40"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.OF.FI"
                }
            ]
        },
        {
            "code": "EV41",
            "display": "Extraoral photo,other face,anomalies",
            "definition": "Extraoral, Other Face, Anomalies (ears, skin tags, etc.)",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-41"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.OF.AN"
                }
            ]
        },
        {
            "code": "EV42",
            "display": "Extraoral photo,full face,mouth open",
            "definition": "Extraoral, Full Face, Mouth Open",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-42"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.FF.MO"
                }
            ]
        },
        {
            "code": "EV43",
            "display": "Extraoral photo,full face,demonstrating nerve weakness",
            "definition": "Extraoral, Full Face, demonstrating Nerve Weakness",
            "designation": [
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EV-43"
                },
                {
                    "use": {
                        "system": "http://snomed.info/sct",
                        "code": "900000000000013009",
                        "display": "Synonym"
                    },
                    "value": "EO.FF.NW"
                }
            ]
        }
    ]
}