Minimum Data Set Frequency

Description

03/26/2024: An issue was identified with the Percent data contained in the Q1, 2020 - Q3, 2023 data files. Updated files containing the corrected data are now available.   The Minimum Data Set (MDS) Frequency data summarizes health status indicators for active residents currently in nursing homes. The MDS is part of the Federally-mandated process for clinical assessment of all residents in Medicare and Medicaid certified nursing homes. This process provides a comprehensive assessment of each resident's functional capabilities and helps nursing home staff identify health problems. Care Area Assessments (CAAs) are part of this process, and provide the foundation upon which a resident's individual care plan is formulated. MDS assessments are completed for all residents in certified nursing homes, regardless of source of payment for the individual resident. MDS assessments are required for residents on admission to the nursing facility, periodically, and on discharge. All assessments are completed within specific guidelines and time frames. In most cases, participants in the assessment process are licensed health care professionals employed by the nursing home. MDS information is transmitted electronically by nursing homes to the national MDS database at CMS.   When reviewing the MDS 3.0 Frequency files, some common software programs e.g., ‘Microsoft Excel’ might inaccurately strip leading zeros from designated code values (i.e., "01" becomes "1") or misinterpret code ranges as dates (i.e., O0600 ranges such as 02-04 are misread as 04-Feb). As each piece of software is unique, if you encounter an issue when reading the CSV file of Frequency data, please open the file in a plain text editor such as ‘Notepad’ or ‘TextPad’ to review the underlying data, before reaching out to CMS for assistance.

Resources

Name Format Description Link
21 https://data.cms.gov/data-api/v1/dataset/177fb523-d5a2-4038-946d-88f5fae0e6e0/data
8 Minimum_Data_Set_Frequency_Q4_2023.csv https://data.cms.gov/sites/default/files/2024-03/03ef1dcd-d22e-4f05-8c15-df274a5a8174/Minimum_Data_Set_Frequency_Q4_2023.csv
21 https://data.cms.gov/data-api/v1/dataset/f00aac86-4559-4bd6-8009-79d453b6f8c1/data
21 https://data.cms.gov/data-api/v1/dataset/f6a468d4-99e8-4b03-a854-5b2ef6b27571/data
8 MDS_Frequency_Q4_2020.csv https://data.cms.gov/sites/default/files/2024-03/44f9c6f1-73f8-48a2-82f9-2eb93ca10ad4/MDS_Frequency_Q4_2020.csv
21 https://data.cms.gov/data-api/v1/dataset/2300b091-0888-448f-b050-dc1a92e7ecf0/data
8 MDS_Frequency_Q1_2021.csv https://data.cms.gov/sites/default/files/2024-03/2bd3a0a6-a24d-4b0f-bd1e-a6d717d2834b/MDS_Frequency_Q1_2021.csv
21 latest https://data.cms.gov/data-api/v1/dataset/4b50bbe6-a496-4eda-b03b-5f835937f81b/data
8 MDS_Frequency_Q1_2024.csv https://data.cms.gov/sites/default/files/2024-04/cc21e4e2-073b-47d5-8157-63ca9b88f6d1/MDS_Frequency_Q1_2024.csv
8 MDS_Frequency_Q3_2020.csv https://data.cms.gov/sites/default/files/2024-03/dfd5b992-dee9-4626-9156-106711548cf4/MDS_Frequency_Q3_2020.csv
8 MDS_Frequency_Q2_2021.csv https://data.cms.gov/sites/default/files/2024-03/80d0fb12-f8dc-4ba2-97bb-0ed65a11dd77/MDS_Frequency_Q2_2021.csv
21 https://data.cms.gov/data-api/v1/dataset/931c4e73-37de-435f-ae93-2b23d935a58a/data
8 MDS_Frequency_Q3_2023.csv https://data.cms.gov/sites/default/files/2024-03/9e1d8de0-29ec-4ef0-affb-eac21c936ad5/MDS_Frequency_Q3_2023.csv
21 https://data.cms.gov/data-api/v1/dataset/fc364768-0c69-4ae9-9cfb-6d69ff8617c5/data
8 MDS_Frequency_Q2_2023.csv https://data.cms.gov/sites/default/files/2024-03/8214b53c-f535-4f69-a323-2ebefbdffc97/MDS_Frequency_Q2_2023.csv
21 https://data.cms.gov/data-api/v1/dataset/553a1017-3800-4885-8027-8aef473a77f7/data
8 MDS_Frequency_Q1_2023.csv https://data.cms.gov/sites/default/files/2024-03/9b2b5b4e-4ad5-4c6f-876a-40a86abc8abe/MDS_Frequency_Q1_2023.csv
21 https://data.cms.gov/data-api/v1/dataset/5f4f5f56-c183-44b7-b166-9fb1b77c074b/data
8 MDS_Frequency_Q4_2022.csv https://data.cms.gov/sites/default/files/2024-03/58ad1b9b-e5c1-4226-86c5-3061771c8a97/MDS_Frequency_Q4_2022.csv
21 https://data.cms.gov/data-api/v1/dataset/0ea741dd-50dc-4252-94d9-7522177da3d3/data
8 MDS_Frequency_Q3_2022.csv https://data.cms.gov/sites/default/files/2024-03/7f66a41d-188c-4000-92e0-767ef4ed500f/MDS_Frequency_Q3_2022.csv
8 MDS_Frequency_Q2_2022.csv https://data.cms.gov/sites/default/files/2024-03/0a30b93e-2e43-4472-84e6-80ec3678cdcf/MDS_Frequency_Q2_2022.csv
21 https://data.cms.gov/data-api/v1/dataset/b9007550-969f-4e67-bc78-fcdf2dea23af/data
8 MDS_Frequency_Q1_2022.csv https://data.cms.gov/sites/default/files/2024-03/82c4369f-09f7-40de-bb75-aeca34ab3a78/MDS_Frequency_Q1_2022.csv
21 https://data.cms.gov/data-api/v1/dataset/06c5bc57-8c3f-4f73-86cd-9a3b283a9157/data
8 MDS_Frequency_Q4_2021.csv https://data.cms.gov/sites/default/files/2024-03/1fac84ad-90e3-48b5-b2b5-48b5e1098d95/MDS_Frequency_Q4_2021.csv
21 https://data.cms.gov/data-api/v1/dataset/8471ac55-68e8-4fdd-b722-1da5f7d389ee/data
21 https://data.cms.gov/data-api/v1/dataset/943fda65-ec71-4113-bce7-639b745ade46/data
21 https://data.cms.gov/data-api/v1/dataset/db10caf4-fe43-493d-bc49-8a074fe838bb/data
8 MDS_Frequency_Q3_2021.csv https://data.cms.gov/sites/default/files/2024-03/e2f52fda-da68-4251-8794-441b65ac68e1/MDS_Frequency_Q3_2021.csv
8 MDS_Frequency_Q2_2020.csv https://data.cms.gov/sites/default/files/2024-03/786ea938-afb5-46d3-9181-310499b0a42f/MDS_Frequency_Q2_2020.csv
21 https://data.cms.gov/data-api/v1/dataset/d3b6d01f-1971-4fed-8014-d5f91da07693/data
8 MDS_Frequency_Q1_2020.csv https://data.cms.gov/sites/default/files/2024-03/35f9eedd-b477-4cf8-b342-4c95261c7dab/MDS_Frequency_Q1_2020.csv
21 https://data.cms.gov/data-api/v1/dataset/26f552e8-6ef0-4230-9703-29d18ae4d7e9/data
21 https://data.cms.gov/data-api/v1/dataset/b8d2e949-d589-40d5-a83f-f08a046562d6/data

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  • medicare
  • medicaid

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