MedicationStatement

Overview

The MedicationStatement resource provides a snapshot in time of known medications taken by the patient now or in the past, which were reported by the patient, a significant other, or a provider. Future orders are not returned.

Historical, past, or home medications are commonly captured when documenting the patient’s medical history. Prescriptions without documented compliance are considered intended because whether the patient is actively taking the medication or has filled the prescription is unknown. Medications are assumed to be taken unless documented otherwise.

The following fields are returned if valued:

Querying for Active Medications

To get all possible current medications, an application should query the MedicationStatement resource with the status query parameter set to active,intended. Because the MedicationStatement resource provides a snapshot in time, the reponse includes only the information that was in the system as of the last contact with the patient. Changes in medications that occurred after the patient last visited their provider are not included.

To get the list of current medications that would likely be shown by default to a practitioner, use the [MedicationOrder] resource and the query above to ensure that draft orders are included. You can use the MedicationStatement.supportingInformation reference to remove duplicates. A duplicate is identified when the MedicationOrder.id is equivalent to the MedicationOrder/[id] in the supportingInformation reference.

Note: The examples provided here are non-normative and replaying them in the public sandbox is not guaranteed to yield the results shown on the site.

Errors

The common errors and OperationOutcomes may be returned.

Terminology Bindings

MedicationStatement.reasonForUse[x]
  • Description
    • A reason for why the medication is being/was taken.
  • Details: SNOMED CT
    System: http://snomed.info/sct

  • Details: ICD-9
    System: http://hl7.org/fhir/sid/icd-9

  • Details: ICD-10
    System: http://hl7.org/fhir/sid/icd-10

MedicationStatement.medication[x]
  • Description
    • A code that defines the type of medication.
  • Details: RxNorm
    System: http://www.nlm.nih.gov/research/umls/rxnorm

MedicationStatement.dosage.timing.code
  • Description
    • Code for a known / defined timing pattern.
  • Details: TimingAbbreviation
    System: http://hl7.org/fhir/timing-abbreviation

  • Details: SNOMED CT
    System: http://snomed.info/sct

MedicationStatement.dosage.asNeeded[x]
  • Description
    • A coded concept identifying the precondition that should be met or evaluated prior to consuming or administering a medication dose.
  • Details: SNOMED CT
    System: http://snomed.info/sct

MedicationStatement.dosage.siteCodeableConcept
  • Description
    • Where on the body the medication is/was administered.
  • Details: SNOMED CT
    System: http://snomed.info/sct

MedicationStatement.dosage.route
  • Description
    • A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.
  • Details: SNOMED CT
    System: http://snomed.info/sct

  • Details: NCI Metathesaurus
    System: http://ncimeta.nci.nih.gov

Contained Medication Bindings

Medication.code
  • Description
    • A code that defines the type of medication.
  • Details: RxNorm
    System: http://www.nlm.nih.gov/research/umls/rxnorm

Medication.product.form
  • Description
    • Describes the form of the item.
  • Details: NCI Metathesaurus
    System: http://ncimeta.nci.nih.gov

Contained Practitioner Bindings

Practitioner.practitionerRole.role
  • Description
    • The roles which this practitioner is authorized to perform for the organization.
  • Details: Practitioner Role
    System: http://hl7.org/fhir/practitioner-role

Extensions

Custom Extensions

All URLs for custom extensions are defined as https://fhir-ehr.cerner.com/dstu2/StructureDefinition/{id}

ID Value[x] Type Description
patient-friendly-display string Extension to MedicationRequest.dosageInstruction. The display name that can be used for this field when producing a view suitable for a patient.
medication-statement-category CodeableConcept The category of the order, for example: patientspecified, outpatient, and so on.

Search for medication statements that meet supplied query parameters.

GET /MedicationStatement?:parameters

Authorization Types

Parameters

Name Required? Type Description
_id Conditionally token The logical resource ID associated with the resource. It may be a list separated by commas. This parameter is required if the patient parameter is not used. Example: _id=1234
patient Conditionally reference The specific patient to return medication statements for. This parameter is required if the _id parameter is not used. Example: patient=5678
status No token The status of the medication statement. It may be a list separated by commas. Example: status=active,completed
_count No number The maximum number of results to return. Defaults to _count=50.

Notes

Headers

Accept: application/json+fhir
Authorization: <OAuth2 Bearer Token>

Example

Request

GET https://fhir-open.cerner.com/dstu2/ec2458f2-1e24-41c8-b71b-0e701af7583d/MedicationStatement?patient=12724067

Response

Status: 200 OK
{
  "resourceType": "Bundle",
  "id": "07ff213c-cc9d-4a68-9969-737045211516",
  "type": "searchset",
  "total": 2,
  "link": [
    {
      "relation": "self",
      "url": "https://fhir-open.cerner.com/dstu2/ec2458f2-1e24-41c8-b71b-0e701af7583d/MedicationStatement?patient=12724067"
    }
  ],
  "entry": [
    {
      "fullUrl": "https://fhir-open.cerner.com/dstu2/ec2458f2-1e24-41c8-b71b-0e701af7583d/MedicationStatement/309799821",
      "resource": {
        "resourceType": "MedicationStatement",
        "id": "309799821",
        "meta": {
          "versionId": "1",
          "lastUpdated": "2020-03-20T01:00:37.000Z"
        },
        "text": {
          "status": "generated",
          "div": "<div><p><b>Medication Statement</b></p><p><b>Patient Name</b>: SMART, JOE</p><p><b>Medication Name</b>: levoFLOXacin</p><p><b>Dosage Instructions</b>: 728 mg = 145.6 mL, IV Piggyback, Daily</p><p><b>Status</b>: Active</p><p><b>Taken</b>: Yes</p></div>"
        },
        "extension": [
          {
            "url": "https://fhir-ehr.cerner.com/dstu2/StructureDefinition/medication-statement-category",
            "valueCodeableConcept": {
              "coding": [
                {
                  "system": "http://hl7.org/fhir/medication-statement-category",
                  "code": "inpatient",
                  "display": "Inpatient"
                }
              ],
              "text": "Inpatient"
            }
          }
        ],
        "patient": {
          "reference": "Patient/12724067",
          "display": "SMART, JOE"
        },
        "informationSource": {
          "reference": "Practitioner/4122622",
          "display": "Cerner Test, Physician - Hospitalist Cerner"
        },
        "dateAsserted": "2020-03-05T11:26:02.000-06:00",
        "status": "active",
        "wasNotTaken": false,
        "effectivePeriod": {
          "start": "2020-03-05T11:26:00.000-06:00"
        },
        "supportingInformation": [
          {
            "reference": "MedicationOrder/309799821"
          }
        ],
        "medicationCodeableConcept": {
          "coding": [
            {
              "system": "http://www.nlm.nih.gov/research/umls/rxnorm",
              "code": "82122",
              "display": "Levofloxacin",
              "userSelected": false
            }
          ],
          "text": "levoFLOXacin"
        },
        "dosage": [
          {
            "text": "728 mg = 145.6 mL, IV Piggyback, Daily",
            "_text": {
              "extension": [
                {
                  "url": "https://fhir-ehr.cerner.com/dstu2/StructureDefinition/patient-friendly-display",
                  "valueString": "IV Piggyback every day. Refills: 0."
                }
              ]
            },
            "timing": {
              "repeat": {
                "boundsPeriod": {
                  "start": "2020-03-05T11:26:00.000-06:00"
                }
              },
              "code": {
                "coding": [
                  {
                    "system": "http://hl7.org/fhir/timing-abbreviation",
                    "code": "QD",
                    "display": "QD",
                    "userSelected": false
                  }
                ],
                "text": "Daily"
              }
            },
            "route": {
              "coding": [
                {
                  "system": "http://ncimeta.nci.nih.gov",
                  "code": "C38279",
                  "display": "INTRAVENOUS DRIP",
                  "userSelected": false
                },
                {
                  "system": "http://snomed.info/sct",
                  "code": "47625008",
                  "display": "Intravenous route (qualifier value)",
                  "userSelected": false
                }
              ],
              "text": "IV Piggyback"
            },
            "quantityQuantity": {
              "value": 728.0,
              "unit": "mg",
              "system": "http://unitsofmeasure.org",
              "code": "mg"
            }
          }
        ]
      }
    },
    {
      "fullUrl": "https://fhir-open.cerner.com/dstu2/ec2458f2-1e24-41c8-b71b-0e701af7583d/MedicationStatement/309799757",
      "resource": {
        "resourceType": "MedicationStatement",
        "id": "309799757",
        "meta": {
          "versionId": "1",
          "lastUpdated": "2020-03-20T01:00:37.000Z"
        },
        "text": {
          "status": "generated",
          "div": "<div><p><b>Medication Statement</b></p><p><b>Patient Name</b>: SMART, JOE</p><p><b>Medication Name</b>: vancomycin</p><p><b>Dosage Instructions</b>: 2,275 mg, IV Piggyback, Once</p><p><b>Status</b>: Active</p><p><b>Taken</b>: Yes</p></div>"
        },
        "extension": [
          {
            "url": "https://fhir-ehr.cerner.com/dstu2/StructureDefinition/medication-statement-category",
            "valueCodeableConcept": {
              "coding": [
                {
                  "system": "http://hl7.org/fhir/medication-statement-category",
                  "code": "inpatient",
                  "display": "Inpatient"
                }
              ],
              "text": "Inpatient"
            }
          }
        ],
        "patient": {
          "reference": "Patient/12724067",
          "display": "SMART, JOE"
        },
        "informationSource": {
          "reference": "Practitioner/4122622",
          "display": "Cerner Test, Physician - Hospitalist Cerner"
        },
        "dateAsserted": "2020-03-05T11:26:02.000-06:00",
        "status": "active",
        "wasNotTaken": false,
        "effectivePeriod": {
          "start": "2020-03-05T11:26:00.000-06:00",
          "end": "2020-03-05T11:26:00.000-06:00"
        },
        "supportingInformation": [
          {
            "reference": "MedicationOrder/309799757"
          }
        ],
        "medicationCodeableConcept": {
          "coding": [
            {
              "system": "http://www.nlm.nih.gov/research/umls/rxnorm",
              "code": "11124",
              "display": "Vancomycin",
              "userSelected": false
            }
          ],
          "text": "vancomycin"
        },
        "dosage": [
          {
            "text": "2,275 mg, IV Piggyback, Once",
            "_text": {
              "extension": [
                {
                  "url": "https://fhir-ehr.cerner.com/dstu2/StructureDefinition/patient-friendly-display",
                  "valueString": "IV Piggyback once. Refills: 0."
                }
              ]
            },
            "timing": {
              "repeat": {
                "boundsPeriod": {
                  "start": "2020-03-05T11:26:00.000-06:00",
                  "end": "2020-03-05T11:26:00.000-06:00"
                }
              },
              "code": {
                "text": "Once"
              }
            },
            "route": {
              "coding": [
                {
                  "system": "http://ncimeta.nci.nih.gov",
                  "code": "C38279",
                  "display": "INTRAVENOUS DRIP",
                  "userSelected": false
                },
                {
                  "system": "http://snomed.info/sct",
                  "code": "47625008",
                  "display": "Intravenous route (qualifier value)",
                  "userSelected": false
                }
              ],
              "text": "IV Piggyback"
            },
            "quantityQuantity": {
              "value": 2275.0,
              "unit": "mg",
              "system": "http://unitsofmeasure.org",
              "code": "mg"
            }
          }
        ]
      }
    }
  ]
}

Retrieve by ID

List an individual medication statement by its ID.

GET /MedicationStatement/:id

Authorization Types

Headers

Accept: application/json+fhir
Authorization: <OAuth2 Bearer Token>

Example

Request

GET https://fhir-open.cerner.com/dstu2/ec2458f2-1e24-41c8-b71b-0e701af7583d/MedicationStatement/309799821

Response

Status: 200 OK
{
  "resourceType": "MedicationStatement",
  "id": "309799821",
  "meta": {
    "versionId": "1",
    "lastUpdated": "2020-03-20T01:00:37.000Z"
  },
  "text": {
    "status": "generated",
    "div": "<div><p><b>Medication Statement</b></p><p><b>Patient Name</b>: SMART, JOE</p><p><b>Medication Name</b>: levoFLOXacin</p><p><b>Dosage Instructions</b>: 728 mg = 145.6 mL, IV Piggyback, Daily</p><p><b>Status</b>: Active</p><p><b>Taken</b>: Yes</p></div>"
  },
  "extension": [
    {
      "url": "https://fhir-ehr.cerner.com/dstu2/StructureDefinition/medication-statement-category",
      "valueCodeableConcept": {
        "coding": [
          {
            "system": "http://hl7.org/fhir/medication-statement-category",
            "code": "inpatient",
            "display": "Inpatient"
          }
        ],
        "text": "Inpatient"
      }
    }
  ],
  "patient": {
    "reference": "Patient/12724067",
    "display": "SMART, JOE"
  },
  "informationSource": {
    "reference": "Practitioner/4122622",
    "display": "Cerner Test, Physician - Hospitalist Cerner"
  },
  "dateAsserted": "2020-03-05T11:26:02.000-06:00",
  "status": "active",
  "wasNotTaken": false,
  "effectivePeriod": {
    "start": "2020-03-05T11:26:00.000-06:00"
  },
  "supportingInformation": [
    {
      "reference": "MedicationOrder/309799821"
    }
  ],
  "medicationCodeableConcept": {
    "coding": [
      {
        "system": "http://www.nlm.nih.gov/research/umls/rxnorm",
        "code": "82122",
        "display": "Levofloxacin",
        "userSelected": false
      }
    ],
    "text": "levoFLOXacin"
  },
  "dosage": [
    {
      "text": "728 mg = 145.6 mL, IV Piggyback, Daily",
      "_text": {
        "extension": [
          {
            "url": "https://fhir-ehr.cerner.com/dstu2/StructureDefinition/patient-friendly-display",
            "valueString": "IV Piggyback every day. Refills: 0."
          }
        ]
      },
      "timing": {
        "repeat": {
          "boundsPeriod": {
            "start": "2020-03-05T11:26:00.000-06:00"
          }
        },
        "code": {
          "coding": [
            {
              "system": "http://hl7.org/fhir/timing-abbreviation",
              "code": "QD",
              "display": "QD",
              "userSelected": false
            }
          ],
          "text": "Daily"
        }
      },
      "route": {
        "coding": [
          {
            "system": "http://ncimeta.nci.nih.gov",
            "code": "C38279",
            "display": "INTRAVENOUS DRIP",
            "userSelected": false
          },
          {
            "system": "http://snomed.info/sct",
            "code": "47625008",
            "display": "Intravenous route (qualifier value)",
            "userSelected": false
          }
        ],
        "text": "IV Piggyback"
      },
      "quantityQuantity": {
        "value": 728.0,
        "unit": "mg",
        "system": "http://unitsofmeasure.org",
        "code": "mg"
      }
    }
  ]
}

Create

Create a new medication statement.

POST /MedicationStatement

Notes

Authorization Types

Headers

Authorization: <OAuth2 Bearer Token>
Accept: application/json+fhir
Content-Type: application/json+fhir

Body Fields

Name Required Type
resourceType Yes string
  • Description
    • The type of the FHIR resource.
  • Example
    • {
        "resourceType: "MedicationStatement"
      }
      
  • Notes
    • resourceType must be MedicationStatement.
patient Yes Reference (Patient)
  • Description
    • Who is/was taking the medication.
  • Example
    • {
        "patient": {
          "reference": "Patient/5366327"
        }
      }
      
status Yes code
  • Description
    • A code representing the patient or other source's judgment about the state of the medication that this statement is about.
  • Example
    • {
        "status": "active"
      }
      
  • Notes
      • When creating a medication statement, only the active status is supported.
      • When updating a medication statement, only the completed status is supported.
effectivePeriod No Period
  • Description
    • The interval of time during which it is being asserted that the patient was taking the medication.
  • Example
    • {
        "effectivePeriod": {
          "start": "2015-05-05T14:00:00.000Z",
          "end": "2015-05-06T01:00:00.000Z"
        }
      }
      
  • Notes
    • If effectivePeriod and dosage.timing.repeat.boundsPeriod are both populated, they must be the same value.
note No string
  • Description
    • Provides extra information about the medication statement that is not conveyed by the other attributes.
  • Example
    • {
        "note": "do not take with alcohol"
      }
      
medication[x] Yes CodeableConcept | contained Reference (Medication)
  • Description
    • Identifies the medication being administered.
  • Example
    • {
        "medicationReference": {
          "reference": "#456235",
          "display": "Ibuprofen"
        }
      }
      
      {
        "medicationCodeableConcept": {
          "coding": [
            {
              "system": "http://www.nlm.nih.gov/research/umls/rxnorm",
               "code": "2551",
               "display": "Ciprofloxacin",
               "userSelected": false
            }
          ],
          "text": "ciprofloxacin"
        }
      }
      
dosage No List of BackboneElement
  • Description
    • How the medication is/was used by the patient.
  • Notes
    • At most one dosage can be populated.
dosage.text No string
  • Description
    • Free text dosage information as reported about a patient's medication use.
  • Example
    • {
        "text": "2, Oral, 2x/Wk, first dose 05/05/15 10:00:00 EDT"
      }
      
dosage.timing No Timing
  • Description
    • The timing schedule for giving the medication to the patient.
dosage.timing.repeat No Element
  • Description
    • A set of rules that describe when the event should occur.
dosage.timing.repeat.bounds[x] No Period | Duration
  • Description
    • Either the length of timing schedule or the outer bounds for start and/or end limits of the timing schedule.
  • Example
    • {
        "boundsPeriod": {
          "start": "2014-11-03T14:38:00.000-05:00"
        }
      }
      
  • Example
    • {
        "boundsQuantity": {
          "value": 10,
          "unit": "days",
          "system": "http://unitsofmeasure.org",
          "code": "d"
        }
      }
      
  • Notes
    • If effectivePeriod and dosage.timing.repeat.boundsPeriod are both populated, they must be the same value.
dosage.timing.repeat.count No integer
  • Description
    • A total count of the desired number of repetitions.
  • Example
    • {
        "count": 5
      }
      
dosage.timing.code No CodeableConcept
  • Description
    • A code for the timing pattern.
  • Example
    • {
        "code": {
          "coding": [
            {
              "system": "http://hl7.org/fhir/v3/vs/GTSAbbreviation",
              "code": "TID",
              "display": "TID"
            }
          ],
          "text": "TID"
        }
      }
      
dosage.asNeeded[x] No boolean | CodeableConcept
  • Description
    • Whether the Medication is only taken when needed within a specific dosing schedule.
  • Example
    • {
        "asNeededCodeableConcept": {
          "coding": [
            {
              "system": "http://snomed.info/sct",
              "code": "25064002",
              "display": "for headache"
            }
          ]
        }
      }
      
  • Example
    • {
        "asNeededBoolean" : true
      }
      
dosage.siteCodeableConcept No CodeableConcept
  • Description
    • Where on the body the medication is/was administered.
  • Example
    • {
        "siteCodeableConcept": {
          "coding": [
            {
              "system": "http://snomed.info/sct",
              "code": "368208006",
              "display": "left upper arm structure (body structure)"
            }
          ],
          "text": "Left Arm"
        }
      }
      
dosage.route No CodeableConcept
  • Description
    • A code specifying the route or physiological path of administration of a therapeutic agent into or onto a subject.
  • Example
    • {
        "route": {
          "coding": [
            {
              "system": "http://snomed.info/sct",
              "code": "41974700",
              "display": "Chew (qualifier value)"
            }
          ],
          "text": "Chewed"
        }
      }
      
dosage.quantityQuantity No SimpleQuantity
  • Description
    • The amount of therapeutic or other substance given at one administration event.
  • Example
    • {
        "quantityQuantity": {
          "value": 2,
          "unit": "tabs",
          "system": "http://unitsofmeasure.org",
          "code": "tbl"
        }
      }
      

Contained Medication Body Fields

Name Required Type
code No CodeableConcept
  • Description
    • Codes that identify this medication.
  • Example
    • {
        "code": {
          "coding": [
            {
              "system": "http://www.nlm.nih.gov/research/umls/rxnorm",
              "code": "2551",
              "display": "Ciprofloxacin",
              "userSelected": false
            }
          ],
          "text": "ciprofloxacin"
        }
      }
      
product No List of BackboneElement
  • Description
    • Information that applies only to products (not packages).
product.form No CodeableConcept
  • Description
    • Describes the form of the item.

Example

Request

POST https://fhir-ehr-code.cerner.com/dstu2/ec2458f2-1e24-41c8-b71b-0e701af7583d/MedicationStatement/

Body

{
  "resourceType": "MedicationStatement",
  "contained": [
    {
      "resourceType": "Medication",
      "id": "123",
      "code": {
        "text": "FHIR Test Medication"
      }
    }
  ],
  "patient": {
    "reference": "Patient/12724067"
  },
  "status": "active",
  "medicationReference": {
    "reference": "#123"
  },
  "dosage": [
    {
      "timing": {
        "code": {
          "coding": [
            {
              "system": "http://hl7.org/fhir/v3/vs/GTSAbbreviation",
              "code": "BID"
            }
          ],
          "text": "BID"
        }
      },
      "quantityQuantity": {
        "value": 60.0,
        "units": "mg",
        "system": "http://unitsofmeasure.org",
        "code": "mg"
      }
    }
  ]
}

Response

Status: 201 Created
Connection: Keep-Alive
Content-Encoding: gzip
Content-Length: 20
Content-Type: text/html; charset=UTF-8
Date: Wed, 13 Jan 2016 21:45:47 GMT
Keep-Alive: timeout=15, max=100
Last-Modified: Tue, 15 Dec 2015 19:13:20 GMT
access-control-allow-methods: DELETE, GET, POST, PUT, OPTIONS, HEAD
access-control-allow-origin: *
access-control-expose-headers: ETag, Content-Location, Location, X-Request-Id, WWW-Authenticate, Date
access-control-max-age: 0
cache-control: no-cache
etag: W/"0"
location: https://fhir-ehr-code.cerner.com/dstu2/ec2458f2-1e24-41c8-b71b-0e701af7583d/MedicationStatement/20465903
strict-transport-security: max-age=631152000
vary: Origin,User-Agent,Accept-Encoding
opc-request-id: /11111111111111111111111111111111/11111111111111111111111111111111
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-request-id: 11111111-1111-1111-1111-111111111111
x-xss-protection: 1; mode=block

The ETag response header indicates the current If-Match version to use on subsequent updates.

Update

Update a medication statement.

PUT /MedicationStatement/:id

Notes

Authorization Types

Headers

Authorization: <OAuth2 Bearer Token>
Accept: application/json+fhir
Content-Type: application/json+fhir
If-Match: W/"<Current version of the MedicationStatement resource>"

Body fields

Name Required Type
resourceType Yes string
  • Description
    • The type of the FHIR resource.
  • Example
    • {
        "resourceType: "MedicationStatement"
      }
      
  • Notes
    • resourceType must be MedicationStatement.
id Yes id
  • Description
    • The logical ID of the resource to update.
  • Example
    • {
        "id": "123412"
      }
      
patient Yes Reference (Patient)
  • Description
    • Who is/was taking the medication.
  • Example
    • {
        "patient": {
          "reference": "Patient/5366327"
        }
      }
      
status Yes code
  • Description
    • A code representing the patient or other source's judgment about the state of the medication that this statement is about.
  • Example
    • {
        "status": "active"
      }
      
  • Notes
      • When creating a medication statement, only the active status is supported.
      • When updating a medication statement, only the completed status is supported.
medication[x] Yes CodeableConcept | contained Reference (Medication)
  • Description
    • Identifies the medication being administered.
  • Example
    • {
        "medicationReference": {
          "reference": "#456235",
          "display": "Ibuprofen"
        }
      }
      
      {
        "medicationCodeableConcept": {
          "coding": [
            {
              "system": "http://www.nlm.nih.gov/research/umls/rxnorm",
               "code": "2551",
               "display": "Ciprofloxacin",
               "userSelected": false
            }
          ],
          "text": "ciprofloxacin"
        }
      }
      
  • Notes
    • This must be the current medication. It cannot be modified.

Example

Request

PUT https://fhir-ehr-code.cerner.com/dstu2/ec2458f2-1e24-41c8-b71b-0e701af7583d/MedicationStatement/309799821

Body

{
  "resourceType": "MedicationStatement",
  "id": "309799821",
  "status": "completed",
  "patient": {
    "reference": "Patient/12724067"
  },
  "medicationCodeableConcept": {
    "coding": [
      {
        "system": "http://www.nlm.nih.gov/research/umls/rxnorm",
        "code": "82122",
        "display": "Levofloxacin",
        "userSelected": false
      }
    ],
    "text": "levoFLOXacin"
  }
}

Response

Status: 200 OK
Connection: Keep-Alive
Content-Encoding: gzip
Content-Length: 20
Content-Type: text/html; charset=UTF-8
Date: Wed, 13 Jan 2016 21:50:53 GMT
Keep-Alive: timeout=15, max=100
Last-Modified: Tue, 15 Dec 2015 19:13:20 GMT
access-control-allow-methods: DELETE, GET, POST, PUT, OPTIONS, HEAD
access-control-allow-origin: *
access-control-expose-headers: ETag, Content-Location, Location, X-Request-Id, WWW-Authenticate, Date
access-control-max-age: 0
cache-control: no-cache
etag: W/"1"
strict-transport-security: max-age=631152000
vary: Origin,User-Agent,Accept-Encoding
opc-request-id: /11111111111111111111111111111111/11111111111111111111111111111111
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-request-id: 11111111-1111-1111-1111-111111111111
x-xss-protection: 1; mode=block

The ETag response header indicates the current If-Match version to use on subsequent updates.