> ## Documentation Index
> Fetch the complete documentation index at: https://help.elationhealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# The Lab Order Set Object

```json theme={null}
{
    "compendium_code": "DLO",
    "content": {
        "id": 140754512117861,
        "stat_method": "",
        "patient_instructions": "",
        "test_center_notes": "",
        "fasting_method": "fasting_random",
        "standing_order_frequency": "",
        "standing_order_end_date": null,
        "collection_datetime": null,
        "icd10_codes": [],
        "tests": [
            {
              "id": 140748306251838,
              "name": "TSH",
              "code": "",
              "procedure_class": null,
              "practice_created": null,
              "lab_vendor": null,
              "compendium": null,
              "cpts": [],
              "synonyms": [],
              "questions": [],
              "created_date": "2020-01-27T16:17:43Z",
              "deleted_date": null
            }
          ]
    },
    "created_date": "2021-05-11T21:16:23Z",
    "deleted_date": "2021-05-11T21:16:23Z",
    "id": 24507383904,
    "lab_vendor": 67191701750,
    "name": "Diabetes - Annual  (Order Set)",
    "practice": 1407566602
}
```

| | | | |
| :- | :- | :- | :- |
| compendium\_code | string | | |
| content.id | integer | | |
| content.stat\_method | string | 'wet\_reading\_phone',  'wet\_reading\_fax',  'stat\_phone',  <br />'stat\_fax',  'stat\_phone\_fax' | |
| content.patient\_instructions | string | | Notes for patient. |
| content.test\_center\_notes | string | | Notes for Lab. |
| content.fasting\_method | string | 'fasting\_12\_hour',  <br /> 'fasting\_8\_hours',  <br /> 'fasting\_2\_hours',  <br /> 'fasting\_none',  <br /> 'fasting\_random' | Instructions for patient and lab on how long they should fast before specimen collection. |
| content.standing\_order\_frequency | string(50) | | Number of times order should be performed on a standing basis. |
| content.standing\_order\_end\_date | date | | Date at which standing order should be canceled. |
| content.collection\_datetime | datetime | | If lab specimen collection is done onsite, this is the time at which the collection was taken. |
| content.icd10\_codes | List of ICD10 codes | | ICD10 diagnosis codes provided along with the order. |
| tests | List of Lab Order Tests | | The list of tests that should be performed by the lab.  <br />  <br />Must all be either from the same compendium or no compendium. |
| tests.id | integer | | The id of the Lab Order Test. |
| tests.name | string(255) | | The name of the Lab Order Test. |
| tests.code | string(50) | | Any code associated with the test, usually provided by the lab vendor's compendium. |
| tests.procedure\_class | string(50) | | Code provided by specific compendiums that indicate the "class" of test, e.g. histology vs cytology.  <br />  <br />Some lab vendors require that tests with specific procedure classes need to ordered separately. |
| tests.practice\_created | integer | | The id of the practice that created the test if practice created. |
| tests.lab\_vendor | integer | | The id of the lab vendor who provides the lab order test. |
| tests.compendium | integer | | The id of the compendium provided the lab vendor that provides the lab order test.  <br />  <br />All tests in the same order **MUST** share the same compendium. |
| tests.cpts | List\[integer] | | A list of CPT codes associated with the lab order test. |
| tests.synonyms | List\[string] | | A list of synonyms that are useful when searching for a specific test. |
| tests.questions | List\[AOEQuestion] | | A list of Ask on Entry (AOE) Questions that need to be answered by the orderer when creating the order. |
| tests.created\_date | datetime | | Time at which Elation created this Lab Order Test. |
| tests.deleted\_date | datetime | | Time at which this Lab Order Test was deleted.  <br />  <br />Can happen when a lab order compendium update deprecates a test. See [the Lab Order Test Object](/articles/rest/orders-api/lab-order-tests/the-lab-order-test-object) for compendium sync and test ID stability details. |
| created\_date | datetime | | Time at which elation created this order.  <br />  <br />Can be different from chart\_date when the order was imported into a chart from a different source and document\_date when documenting an order that happened at some other time. |
| document\_date | datetime | | Time at which this order was created in whichever system created it. Could be historical or same as the create\_date. |
| id | integer | | The id of the lab order set in Elation's systems.  <br />  <br />Will be unique. |
| lab\_vendor | integer | | |
| name | string | | The name of the lab order set. |
| practice | integer | | |