---
type: "codesystem"
title: "Week Of Month"
codesystem: "week-of-month"
---
# Week Of Month

- **Official URL**: http://hl7.org/fhir/week-of-month
- **Version**: 6.0.0
- **Status**: active
- **Name**: WeekOfMonth
- **Title**: Week Of Month
- **Publisher**: HL7 (FHIR Project)
- **Description**: The set of weeks with in a month.
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| first | First | First week of the month. |
| second | Second | Second week of the month. |
| third | Third | Third week of the month. |
| fourth | Fourth | Fourth week of the month. |
| last | Last | Last week of the month. |

## CodeSystem XML



```xml
<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="week-of-month"/>
  <meta>
    <lastUpdated value="2021-01-05T10:01:24.148+11:00"/>
  </meta>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="pa"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/>
  </extension>
  <url value="http://hl7.org/fhir/week-of-month"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.1906"/>
  </identifier>
  <version value="6.0.0"/>
  <name value="WeekOfMonth"/>
  <title value="Week Of Month"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2022-06-14"/>
  <publisher value="HL7 (FHIR Project)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="fhir@lists.hl7.org"/>
    </telecom>
  </contact>
  <description value="The set of weeks with in a month."/>
  <caseSensitive value="true"/>
  <valueSet value="http://hl7.org/fhir/ValueSet/week-of-month"/>
  <content value="complete"/>
  <concept>
    <code value="first"/>
    <display value="First"/>
    <definition value="First week of the month."/>
  </concept>
  <concept>
    <code value="second"/>
    <display value="Second"/>
    <definition value="Second week of the month."/>
  </concept>
  <concept>
    <code value="third"/>
    <display value="Third"/>
    <definition value="Third week of the month."/>
  </concept>
  <concept>
    <code value="fourth"/>
    <display value="Fourth"/>
    <definition value="Fourth week of the month."/>
  </concept>
  <concept>
    <code value="last"/>
    <display value="Last"/>
    <definition value="Last week of the month."/>
  </concept>
</CodeSystem>
```