    <SEC-DOCUMENT>0001075415-22-000030-index.html : 20221102
    <SEC-HEADER>0001075415-22-000030.hdr.sgml : 20221102
    <ACCEPTANCE-DATETIME>20221102162454
    ACCESSION NUMBER:		0001075415-22-000030
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		62
    CONFORMED PERIOD OF REPORT:	20221102
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20221102
    DATE AS OF CHANGE:		20221102

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			DIVERSIFIED HEALTHCARE TRUST
    		CENTRAL INDEX KEY:			0001075415
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				043445278
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-15319
    		FILM NUMBER:		221354494

    	BUSINESS ADDRESS:
    		STREET 1:		C/O THE RMR GROUP
    		STREET 2:		TWO NEWTON PL., 255 WASH. ST., STE. 300
    		CITY:			NEWTON
    		STATE:			MA
    		ZIP:			02458
    		BUSINESS PHONE:		(617) 796-8350

    	MAIL ADDRESS:
    		STREET 1:		C/O THE RMR GROUP
    		STREET 2:		TWO NEWTON PL., 255 WASH. ST., STE. 300
    		CITY:			NEWTON
    		STATE:			MA
    		ZIP:			02458

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	SENIOR HOUSING PROPERTIES TRUST
    		DATE OF NAME CHANGE:	19981217
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>dhc-20221102.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: dhc-20221102.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a991_dhcx093022xearningsre.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: a991_dhcx093022xearningsre.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>dhc093022supplemental.htm
    <DESCRIPTION>EX-99.2
    <TEXT>
    Document 3 - file: dhc093022supplemental.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>4
    <FILENAME>dhc-20221102.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 4 - file: dhc-20221102.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>5
    <FILENAME>dhc-20221102_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: dhc-20221102_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>6
    <FILENAME>dhc-20221102_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 6 - file: dhc-20221102_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>7
    <FILENAME>dhc-20221102_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 7 - file: dhc-20221102_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>dhc093022supplemental001.jpg
    <TEXT>
    Document 8 - file: dhc093022supplemental001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>dhc093022supplemental002.jpg
    <TEXT>
    Document 9 - file: dhc093022supplemental002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>dhc093022supplemental003.jpg
    <TEXT>
    Document 10 - file: dhc093022supplemental003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>dhc093022supplemental004.jpg
    <TEXT>
    Document 11 - file: dhc093022supplemental004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>dhc093022supplemental005.jpg
    <TEXT>
    Document 12 - file: dhc093022supplemental005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>dhc093022supplemental006.jpg
    <TEXT>
    Document 13 - file: dhc093022supplemental006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>dhc093022supplemental007.jpg
    <TEXT>
    Document 14 - file: dhc093022supplemental007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>dhc093022supplemental008.jpg
    <TEXT>
    Document 15 - file: dhc093022supplemental008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>dhc093022supplemental009.jpg
    <TEXT>
    Document 16 - file: dhc093022supplemental009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>dhc093022supplemental010.jpg
    <TEXT>
    Document 17 - file: dhc093022supplemental010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>dhc093022supplemental011.jpg
    <TEXT>
    Document 18 - file: dhc093022supplemental011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>dhc093022supplemental012.jpg
    <TEXT>
    Document 19 - file: dhc093022supplemental012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>dhc093022supplemental013.jpg
    <TEXT>
    Document 20 - file: dhc093022supplemental013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>dhc093022supplemental014.jpg
    <TEXT>
    Document 21 - file: dhc093022supplemental014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>dhc093022supplemental015.jpg
    <TEXT>
    Document 22 - file: dhc093022supplemental015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>dhc093022supplemental016.jpg
    <TEXT>
    Document 23 - file: dhc093022supplemental016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>dhc093022supplemental017.jpg
    <TEXT>
    Document 24 - file: dhc093022supplemental017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>dhc093022supplemental018.jpg
    <TEXT>
    Document 25 - file: dhc093022supplemental018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>dhc093022supplemental019.jpg
    <TEXT>
    Document 26 - file: dhc093022supplemental019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>dhc093022supplemental020.jpg
    <TEXT>
    Document 27 - file: dhc093022supplemental020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>dhc093022supplemental021.jpg
    <TEXT>
    Document 28 - file: dhc093022supplemental021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>dhc093022supplemental022.jpg
    <TEXT>
    Document 29 - file: dhc093022supplemental022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>dhc093022supplemental023.jpg
    <TEXT>
    Document 30 - file: dhc093022supplemental023.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>dhc093022supplemental024.jpg
    <TEXT>
    Document 31 - file: dhc093022supplemental024.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>dhc093022supplemental025.jpg
    <TEXT>
    Document 32 - file: dhc093022supplemental025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>dhc093022supplemental026.jpg
    <TEXT>
    Document 33 - file: dhc093022supplemental026.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>dhc093022supplemental027.jpg
    <TEXT>
    Document 34 - file: dhc093022supplemental027.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>dhc093022supplemental028.jpg
    <TEXT>
    Document 35 - file: dhc093022supplemental028.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>dhc093022supplemental029.jpg
    <TEXT>
    Document 36 - file: dhc093022supplemental029.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>dhc093022supplemental030.jpg
    <TEXT>
    Document 37 - file: dhc093022supplemental030.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>dhc093022supplemental031.jpg
    <TEXT>
    Document 38 - file: dhc093022supplemental031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>dhc093022supplemental032.jpg
    <TEXT>
    Document 39 - file: dhc093022supplemental032.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>dhc093022supplemental033.jpg
    <TEXT>
    Document 40 - file: dhc093022supplemental033.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>dhc093022supplemental034.jpg
    <TEXT>
    Document 41 - file: dhc093022supplemental034.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>dhc093022supplemental035.jpg
    <TEXT>
    Document 42 - file: dhc093022supplemental035.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>dhc093022supplemental036.jpg
    <TEXT>
    Document 43 - file: dhc093022supplemental036.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>dhc093022supplemental037.jpg
    <TEXT>
    Document 44 - file: dhc093022supplemental037.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>dhc093022supplemental038.jpg
    <TEXT>
    Document 45 - file: dhc093022supplemental038.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>dhc093022supplemental039.jpg
    <TEXT>
    Document 46 - file: dhc093022supplemental039.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>47
    <FILENAME>dhc093022supplemental040.jpg
    <TEXT>
    Document 47 - file: dhc093022supplemental040.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>48
    <FILENAME>dhc093022supplemental041.jpg
    <TEXT>
    Document 48 - file: dhc093022supplemental041.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>49
    <FILENAME>dhc093022supplemental042.jpg
    <TEXT>
    Document 49 - file: dhc093022supplemental042.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>50
    <FILENAME>dhc093022supplemental043.jpg
    <TEXT>
    Document 50 - file: dhc093022supplemental043.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>51
    <FILENAME>dhc093022supplemental044.jpg
    <TEXT>
    Document 51 - file: dhc093022supplemental044.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>52
    <FILENAME>dhc093022supplemental045.jpg
    <TEXT>
    Document 52 - file: dhc093022supplemental045.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>53
    <FILENAME>dhcfooterimagea07a.jpg
    <TEXT>
    Document 53 - file: dhcfooterimagea07a.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>54
    <FILENAME>header1a02a.jpg
    <TEXT>
    Document 54 - file: header1a02a.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>55
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 55 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>56
    <FILENAME>dhc-20221102_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 56 - file: dhc-20221102_htm.html

    Document 56 - RAW XML: dhc-20221102_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>57
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 57 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>58
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 58 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>59
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 59 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>60
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 60 - file: FilingSummary.html

    Document 60 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>62
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 62 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>63
    <FILENAME>0001075415-22-000030-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 63 - file: 0001075415-22-000030-xbrl.zip

    </DOCUMENT>
    </SEC-DOCUMENT>