Availability.xml
1 <?xml version="1.0" encoding="utf-8"?>
2 <StructureDefinition xmlns="http://hl7.org/fhir">
3 <id value="Availability" />
4 <meta>
5 <lastUpdated value="2023-03-26T06:21:02.749+02:00" />
6 </meta>
7 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
8 <valueCode value="trial-use" />
9 </extension>
10 <url value="http://hl7.org/fhir/StructureDefinition/Availability" />
11 <version value="5.0.0" />
12 <name value="Availability" />
13 <status value="draft" />
14 <experimental value="false" />
15 <date value="2023-03-26T06:21:02.0000000+02:00" />
16 <publisher value="HL7 FHIR Standard" />
17 <contact>
18 <telecom>
19 <system value="url" />
20 <value value="http://hl7.org/fhir" />
21 </telecom>
22 </contact>
23 <description value="Availability Type: Availability data for an {item}." />
24 <jurisdiction>
25 <coding>
26 <system value="http://unstats.un.org/unsd/methods/m49/m49.htm" />
27 <code value="001" />
28 <display value="World" />
29 </coding>
30 </jurisdiction>
31 <fhirVersion value="5.0.0" />
32 <mapping>
33 <identity value="rim" />
34 <uri value="http://hl7.org/v3" />
35 <name value="RIM Mapping" />
36 </mapping>
37 <kind value="complex-type" />
38 <abstract value="false" />
39 <type value="Availability" />
40 <baseDefinition value="http://hl7.org/fhir/StructureDefinition/DataType" />
41 <derivation value="specialization" />
42 <snapshot>
43 <element id="Availability">
44 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
45 <valueCode value="trial-use" />
46 </extension>
47 <path value="Availability" />
48 <short value="Availability data for an {item}" />
49 <definition value="Availability data for an {item}." />
50 <min value="0" />
51 <max value="*" />
52 <base>
53 <path value="Availability" />
54 <min value="0" />
55 <max value="*" />
56 </base>
57 <constraint>
58 <key value="ele-1" />
59 <severity value="error" />
60 <human value="All FHIR elements must have a @value or children" />
61 <expression value="hasValue() or (children().count() > id.count())" />
62 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
63 </constraint>
64 <isModifier value="false" />
65 <mapping>
66 <identity value="rim" />
67 <map value="n/a" />
68 </mapping>
69 </element>
70 <element id="Availability.id">
71 <path value="Availability.id" />
72 <representation value="xmlAttr" />
73 <short value="Unique id for inter-element referencing" />
74 <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
75 <min value="0" />
76 <max value="1" />
77 <base>
78 <path value="Element.id" />
79 <min value="0" />
80 <max value="1" />
81 </base>
82 <type>
83 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
84 <valueUrl value="id" />
85 </extension>
86 <code value="http://hl7.org/fhirpath/System.String" />
87 </type>
88 <condition value="ele-1" />
89 <isModifier value="false" />
90 <isSummary value="false" />
91 <mapping>
92 <identity value="rim" />
93 <map value="n/a" />
94 </mapping>
95 </element>
96 <element id="Availability.extension">
97 <path value="Availability.extension" />
98 <slicing>
99 <discriminator>
100 <type value="value" />
101 <path value="url" />
102 </discriminator>
103 <description value="Extensions are always sliced by (at least) url" />
104 <rules value="open" />
105 </slicing>
106 <short value="Additional content defined by implementations" />
107 <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
108 <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
109 <alias value="extensions" />
110 <alias value="user content" />
111 <min value="0" />
112 <max value="*" />
113 <base>
114 <path value="Element.extension" />
115 <min value="0" />
116 <max value="*" />
117 </base>
118 <type>
119 <code value="Extension" />
120 </type>
121 <constraint>
122 <key value="ele-1" />
123 <severity value="error" />
124 <human value="All FHIR elements must have a @value or children" />
125 <expression value="hasValue() or (children().count() > id.count())" />
126 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
127 </constraint>
128 <constraint>
129 <key value="ext-1" />
130 <severity value="error" />
131 <human value="Must have either extensions or value[x], not both" />
132 <expression value="extension.exists() != value.exists()" />
133 <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
134 </constraint>
135 <isModifier value="false" />
136 <isSummary value="false" />
137 <mapping>
138 <identity value="rim" />
139 <map value="n/a" />
140 </mapping>
141 </element>
142 <element id="Availability.availableTime">
143 <path value="Availability.availableTime" />
144 <short value="Times the {item} is available" />
145 <definition value="Times the {item} is available." />
146 <requirements value="A collection of times that the {item} is available." />
147 <min value="0" />
148 <max value="*" />
149 <base>
150 <path value="Availability.availableTime" />
151 <min value="0" />
152 <max value="*" />
153 </base>
154 <type>
155 <code value="Element" />
156 </type>
157 <constraint>
158 <key value="av-1" />
159 <severity value="error" />
160 <human value="Cannot include start/end times when selecting all day availability." />
161 <expression value="allDay.exists().not() or (allDay implies availableStartTime.exists().not() and availableEndTime.exists().not())" />
162 <source value="http://hl7.org/fhir/StructureDefinition/Availability" />
163 </constraint>
164 <constraint>
165 <key value="ele-1" />
166 <severity value="error" />
167 <human value="All FHIR elements must have a @value or children" />
168 <expression value="hasValue() or (children().count() > id.count())" />
169 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
170 </constraint>
171 <isModifier value="false" />
172 <isSummary value="true" />
173 </element>
174 <element id="Availability.availableTime.id">
175 <path value="Availability.availableTime.id" />
176 <representation value="xmlAttr" />
177 <short value="Unique id for inter-element referencing" />
178 <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
179 <min value="0" />
180 <max value="1" />
181 <base>
182 <path value="Element.id" />
183 <min value="0" />
184 <max value="1" />
185 </base>
186 <type>
187 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
188 <valueUrl value="string" />
189 </extension>
190 <code value="http://hl7.org/fhirpath/System.String" />
191 </type>
192 <condition value="ele-1" />
193 <isModifier value="false" />
194 <isSummary value="false" />
195 <mapping>
196 <identity value="rim" />
197 <map value="n/a" />
198 </mapping>
199 </element>
200 <element id="Availability.availableTime.extension">
201 <path value="Availability.availableTime.extension" />
202 <slicing>
203 <discriminator>
204 <type value="value" />
205 <path value="url" />
206 </discriminator>
207 <description value="Extensions are always sliced by (at least) url" />
208 <rules value="open" />
209 </slicing>
210 <short value="Additional content defined by implementations" />
211 <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
212 <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
213 <alias value="extensions" />
214 <alias value="user content" />
215 <min value="0" />
216 <max value="*" />
217 <base>
218 <path value="Element.extension" />
219 <min value="0" />
220 <max value="*" />
221 </base>
222 <type>
223 <code value="Extension" />
224 </type>
225 <constraint>
226 <key value="ele-1" />
227 <severity value="error" />
228 <human value="All FHIR elements must have a @value or children" />
229 <expression value="hasValue() or (children().count() > id.count())" />
230 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
231 </constraint>
232 <constraint>
233 <key value="ext-1" />
234 <severity value="error" />
235 <human value="Must have either extensions or value[x], not both" />
236 <expression value="extension.exists() != value.exists()" />
237 <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
238 </constraint>
239 <isModifier value="false" />
240 <isSummary value="false" />
241 <mapping>
242 <identity value="rim" />
243 <map value="n/a" />
244 </mapping>
245 </element>
246 <element id="Availability.availableTime.daysOfWeek">
247 <path value="Availability.availableTime.daysOfWeek" />
248 <short value="mon | tue | wed | thu | fri | sat | sun" />
249 <definition value="mon | tue | wed | thu | fri | sat | sun." />
250 <requirements value="Indicates which days of the week are available between the start and end Times." />
251 <min value="0" />
252 <max value="*" />
253 <base>
254 <path value="Availability.availableTime.daysOfWeek" />
255 <min value="0" />
256 <max value="*" />
257 </base>
258 <type>
259 <code value="code" />
260 </type>
261 <constraint>
262 <key value="ele-1" />
263 <severity value="error" />
264 <human value="All FHIR elements must have a @value or children" />
265 <expression value="hasValue() or (children().count() > id.count())" />
266 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
267 </constraint>
268 <isModifier value="false" />
269 <isSummary value="true" />
270 <binding>
271 <extension url="http://hl7.org/fhir/tools/StructureDefinition/binding-definition">
272 <valueString value="The purpose for which an extended contact detail should be used." />
273 </extension>
274 <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
275 <valueString value="DaysOfWeek" />
276 </extension>
277 <strength value="required" />
278 <description value="The purpose for which an extended contact detail should be used." />
279 <valueSet value="http://hl7.org/fhir/ValueSet/days-of-week|5.0.0" />
280 </binding>
281 </element>
282 <element id="Availability.availableTime.allDay">
283 <path value="Availability.availableTime.allDay" />
284 <short value="Always available? i.e. 24 hour service" />
285 <definition value="Always available? i.e. 24 hour service." />
286 <requirements value="Is this always available? (hence times are irrelevant) i.e. 24 hour service." />
287 <min value="0" />
288 <max value="1" />
289 <base>
290 <path value="Availability.availableTime.allDay" />
291 <min value="0" />
292 <max value="1" />
293 </base>
294 <type>
295 <code value="boolean" />
296 </type>
297 <condition value="av-1" />
298 <constraint>
299 <key value="ele-1" />
300 <severity value="error" />
301 <human value="All FHIR elements must have a @value or children" />
302 <expression value="hasValue() or (children().count() > id.count())" />
303 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
304 </constraint>
305 <isModifier value="false" />
306 <isSummary value="true" />
307 </element>
308 <element id="Availability.availableTime.availableStartTime">
309 <path value="Availability.availableTime.availableStartTime" />
310 <short value="Opening time of day (ignored if allDay = true)" />
311 <definition value="Opening time of day (ignored if allDay = true)." />
312 <comment value="The timezone is expected to be specified or implied by the context this datatype is used." />
313 <requirements value="The opening time of day. Note: If the AllDay flag is set, then this time is ignored." />
314 <min value="0" />
315 <max value="1" />
316 <base>
317 <path value="Availability.availableTime.availableStartTime" />
318 <min value="0" />
319 <max value="1" />
320 </base>
321 <type>
322 <code value="time" />
323 </type>
324 <condition value="av-1" />
325 <constraint>
326 <key value="ele-1" />
327 <severity value="error" />
328 <human value="All FHIR elements must have a @value or children" />
329 <expression value="hasValue() or (children().count() > id.count())" />
330 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
331 </constraint>
332 <isModifier value="false" />
333 <isSummary value="true" />
334 </element>
335 <element id="Availability.availableTime.availableEndTime">
336 <path value="Availability.availableTime.availableEndTime" />
337 <short value="Closing time of day (ignored if allDay = true)" />
338 <definition value="Closing time of day (ignored if allDay = true)." />
339 <comment value="The timezone is expected to be specified or implied by the context this datatype is used." />
340 <requirements value="The closing time of day. Note: If the AllDay flag is set, then this time is ignored." />
341 <min value="0" />
342 <max value="1" />
343 <base>
344 <path value="Availability.availableTime.availableEndTime" />
345 <min value="0" />
346 <max value="1" />
347 </base>
348 <type>
349 <code value="time" />
350 </type>
351 <condition value="av-1" />
352 <constraint>
353 <key value="ele-1" />
354 <severity value="error" />
355 <human value="All FHIR elements must have a @value or children" />
356 <expression value="hasValue() or (children().count() > id.count())" />
357 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
358 </constraint>
359 <isModifier value="false" />
360 <isSummary value="true" />
361 </element>
362 <element id="Availability.notAvailableTime">
363 <path value="Availability.notAvailableTime" />
364 <short value="Not available during this time due to provided reason" />
365 <definition value="Not available during this time due to provided reason." />
366 <requirements value="The {item} is not available during this period of time due to the provided reason." />
367 <min value="0" />
368 <max value="*" />
369 <base>
370 <path value="Availability.notAvailableTime" />
371 <min value="0" />
372 <max value="*" />
373 </base>
374 <type>
375 <code value="Element" />
376 </type>
377 <constraint>
378 <key value="ele-1" />
379 <severity value="error" />
380 <human value="All FHIR elements must have a @value or children" />
381 <expression value="hasValue() or (children().count() > id.count())" />
382 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
383 </constraint>
384 <isModifier value="false" />
385 <isSummary value="true" />
386 </element>
387 <element id="Availability.notAvailableTime.id">
388 <path value="Availability.notAvailableTime.id" />
389 <representation value="xmlAttr" />
390 <short value="Unique id for inter-element referencing" />
391 <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
392 <min value="0" />
393 <max value="1" />
394 <base>
395 <path value="Element.id" />
396 <min value="0" />
397 <max value="1" />
398 </base>
399 <type>
400 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
401 <valueUrl value="string" />
402 </extension>
403 <code value="http://hl7.org/fhirpath/System.String" />
404 </type>
405 <condition value="ele-1" />
406 <isModifier value="false" />
407 <isSummary value="false" />
408 <mapping>
409 <identity value="rim" />
410 <map value="n/a" />
411 </mapping>
412 </element>
413 <element id="Availability.notAvailableTime.extension">
414 <path value="Availability.notAvailableTime.extension" />
415 <slicing>
416 <discriminator>
417 <type value="value" />
418 <path value="url" />
419 </discriminator>
420 <description value="Extensions are always sliced by (at least) url" />
421 <rules value="open" />
422 </slicing>
423 <short value="Additional content defined by implementations" />
424 <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
425 <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
426 <alias value="extensions" />
427 <alias value="user content" />
428 <min value="0" />
429 <max value="*" />
430 <base>
431 <path value="Element.extension" />
432 <min value="0" />
433 <max value="*" />
434 </base>
435 <type>
436 <code value="Extension" />
437 </type>
438 <constraint>
439 <key value="ele-1" />
440 <severity value="error" />
441 <human value="All FHIR elements must have a @value or children" />
442 <expression value="hasValue() or (children().count() > id.count())" />
443 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
444 </constraint>
445 <constraint>
446 <key value="ext-1" />
447 <severity value="error" />
448 <human value="Must have either extensions or value[x], not both" />
449 <expression value="extension.exists() != value.exists()" />
450 <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
451 </constraint>
452 <isModifier value="false" />
453 <isSummary value="false" />
454 <mapping>
455 <identity value="rim" />
456 <map value="n/a" />
457 </mapping>
458 </element>
459 <element id="Availability.notAvailableTime.description">
460 <path value="Availability.notAvailableTime.description" />
461 <short value="Reason presented to the user explaining why time not available" />
462 <definition value="Reason presented to the user explaining why time not available." />
463 <comment value="The reason will generally be provided to give the textual reason for displaying when the {item} is not available, e.g. 'Closed public holidays' or 'Independence Day'. In cases such as this, the `during` might not be included and local knowledge would be required in such cases (as don't desire to keep updating when the holiday occurs each year).
e.g.2: 'Closed for maintenance over the summer' for this example you would want to include the `during` period, unless this was a university hospital and the "summer" period was well known, but would recommend its inclusion anyway." />
464 <requirements value="The reason that can be presented to the user as to why this time is not available." />
465 <min value="0" />
466 <max value="1" />
467 <base>
468 <path value="Availability.notAvailableTime.description" />
469 <min value="0" />
470 <max value="1" />
471 </base>
472 <type>
473 <code value="string" />
474 </type>
475 <constraint>
476 <key value="ele-1" />
477 <severity value="error" />
478 <human value="All FHIR elements must have a @value or children" />
479 <expression value="hasValue() or (children().count() > id.count())" />
480 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
481 </constraint>
482 <isModifier value="false" />
483 <isSummary value="true" />
484 </element>
485 <element id="Availability.notAvailableTime.during">
486 <path value="Availability.notAvailableTime.during" />
487 <short value="Service not available during this period" />
488 <definition value="Service not available during this period." />
489 <requirements value="The {item} is not available (seasonally or for a public holiday) during this period." />
490 <min value="0" />
491 <max value="1" />
492 <base>
493 <path value="Availability.notAvailableTime.during" />
494 <min value="0" />
495 <max value="1" />
496 </base>
497 <type>
498 <code value="Period" />
499 </type>
500 <constraint>
501 <key value="ele-1" />
502 <severity value="error" />
503 <human value="All FHIR elements must have a @value or children" />
504 <expression value="hasValue() or (children().count() > id.count())" />
505 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
506 </constraint>
507 <isModifier value="false" />
508 <isSummary value="true" />
509 </element>
510 </snapshot>
511 <differential>
512 <element id="Availability">
513 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
514 <valueCode value="trial-use" />
515 </extension>
516 <path value="Availability" />
517 <short value="Availability data for an {item}" />
518 <definition value="Availability data for an {item}." />
519 <min value="0" />
520 <max value="*" />
521 </element>
522 <element id="Availability.availableTime">
523 <path value="Availability.availableTime" />
524 <short value="Times the {item} is available" />
525 <definition value="Times the {item} is available." />
526 <requirements value="A collection of times that the {item} is available." />
527 <min value="0" />
528 <max value="*" />
529 <type>
530 <code value="Element" />
531 </type>
532 <constraint>
533 <key value="av-1" />
534 <severity value="error" />
535 <human value="Cannot include start/end times when selecting all day availability." />
536 <expression value="allDay.exists().not() or (allDay implies availableStartTime.exists().not() and availableEndTime.exists().not())" />
537 <source value="http://hl7.org/fhir/StructureDefinition/Availability" />
538 </constraint>
539 <isSummary value="true" />
540 </element>
541 <element id="Availability.availableTime.daysOfWeek">
542 <path value="Availability.availableTime.daysOfWeek" />
543 <short value="mon | tue | wed | thu | fri | sat | sun" />
544 <definition value="mon | tue | wed | thu | fri | sat | sun." />
545 <requirements value="Indicates which days of the week are available between the start and end Times." />
546 <min value="0" />
547 <max value="*" />
548 <type>
549 <code value="code" />
550 </type>
551 <isSummary value="true" />
552 <binding>
553 <extension url="http://hl7.org/fhir/tools/StructureDefinition/binding-definition">
554 <valueString value="The purpose for which an extended contact detail should be used." />
555 </extension>
556 <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
557 <valueString value="DaysOfWeek" />
558 </extension>
559 <strength value="required" />
560 <description value="The purpose for which an extended contact detail should be used." />
561 <valueSet value="http://hl7.org/fhir/ValueSet/days-of-week|5.0.0" />
562 </binding>
563 </element>
564 <element id="Availability.availableTime.allDay">
565 <path value="Availability.availableTime.allDay" />
566 <short value="Always available? i.e. 24 hour service" />
567 <definition value="Always available? i.e. 24 hour service." />
568 <requirements value="Is this always available? (hence times are irrelevant) i.e. 24 hour service." />
569 <min value="0" />
570 <max value="1" />
571 <type>
572 <code value="boolean" />
573 </type>
574 <condition value="av-1" />
575 <isSummary value="true" />
576 </element>
577 <element id="Availability.availableTime.availableStartTime">
578 <path value="Availability.availableTime.availableStartTime" />
579 <short value="Opening time of day (ignored if allDay = true)" />
580 <definition value="Opening time of day (ignored if allDay = true)." />
581 <comment value="The timezone is expected to be specified or implied by the context this datatype is used." />
582 <requirements value="The opening time of day. Note: If the AllDay flag is set, then this time is ignored." />
583 <min value="0" />
584 <max value="1" />
585 <type>
586 <code value="time" />
587 </type>
588 <condition value="av-1" />
589 <isSummary value="true" />
590 </element>
591 <element id="Availability.availableTime.availableEndTime">
592 <path value="Availability.availableTime.availableEndTime" />
593 <short value="Closing time of day (ignored if allDay = true)" />
594 <definition value="Closing time of day (ignored if allDay = true)." />
595 <comment value="The timezone is expected to be specified or implied by the context this datatype is used." />
596 <requirements value="The closing time of day. Note: If the AllDay flag is set, then this time is ignored." />
597 <min value="0" />
598 <max value="1" />
599 <type>
600 <code value="time" />
601 </type>
602 <condition value="av-1" />
603 <isSummary value="true" />
604 </element>
605 <element id="Availability.notAvailableTime">
606 <path value="Availability.notAvailableTime" />
607 <short value="Not available during this time due to provided reason" />
608 <definition value="Not available during this time due to provided reason." />
609 <requirements value="The {item} is not available during this period of time due to the provided reason." />
610 <min value="0" />
611 <max value="*" />
612 <type>
613 <code value="Element" />
614 </type>
615 <isSummary value="true" />
616 </element>
617 <element id="Availability.notAvailableTime.description">
618 <path value="Availability.notAvailableTime.description" />
619 <short value="Reason presented to the user explaining why time not available" />
620 <definition value="Reason presented to the user explaining why time not available." />
621 <comment value="The reason will generally be provided to give the textual reason for displaying when the {item} is not available, e.g. 'Closed public holidays' or 'Independence Day'. In cases such as this, the `during` might not be included and local knowledge would be required in such cases (as don't desire to keep updating when the holiday occurs each year).
e.g.2: 'Closed for maintenance over the summer' for this example you would want to include the `during` period, unless this was a university hospital and the "summer" period was well known, but would recommend its inclusion anyway." />
622 <requirements value="The reason that can be presented to the user as to why this time is not available." />
623 <min value="0" />
624 <max value="1" />
625 <type>
626 <code value="string" />
627 </type>
628 <isSummary value="true" />
629 </element>
630 <element id="Availability.notAvailableTime.during">
631 <path value="Availability.notAvailableTime.during" />
632 <short value="Service not available during this period" />
633 <definition value="Service not available during this period." />
634 <requirements value="The {item} is not available (seasonally or for a public holiday) during this period." />
635 <min value="0" />
636 <max value="1" />
637 <type>
638 <code value="Period" />
639 </type>
640 <isSummary value="true" />
641 </element>
642 </differential>
643 </StructureDefinition>