Other Chronic or Potentially Disabling Conditions documentation contains first ever occurrence date and end year occurrence date for an additional 35 chronic or potentially disabling conditions not included in the above chronic conditions segment (e.g., mental health tobacco, alcohol and drug use developmental disorders disability related conditions behavioral health conditions) claims-based algorithms are available on the Chronic Conditions Warehouse website.The condition definitions were not intended to calculate population statistics. The flag definitions were intended to be broad, so that researchers could extract the data based on the flag definitions and then refine their specifications as needed for their specific analyses. It is important to note that the major objective for creating the flags was to allow for a quick, initial identification and extraction of beneficiaries with a given condition from the larger Medicare population. Thus, in order for the flag to indicate the presence of a condition, the claims for the beneficiary must indicate treatment for that condition and the beneficiary must also have had continuous Part A/B-FFS coverage during the specified time period. This limitation also applies to newly-eligible Medicare beneficiaries who may have only a partial year of FFS coverage.

Because the flags are determined using claims data it is not possible to ascertain the information for beneficiaries enrolled in managed care/HMOs. As a proxy of evidence for the presence of a condition, these flags are determined based on the presence of treatment for the conditions using claims-based algorithms that were created by CMS and are available on the Chronic Conditions Warehouse website. Chronic Conditions Flags Documentation contains first occurrence date, mid-year flag, and end year flag to indicate the presence or absence of 27 conditions, based on Medicare services provided beginning in 1999.Base (A/B/C/D) contains information on the person’s date of birth, date of death (if any), sex, race, state of residence, and monthly enrollment in Part A (inpatient), Part B (outpatient), Part C (Medicare Advantage/ managed care/ HMO) and Part D (prescription drug coverage).A more detailed explanation can be obtained here from the Centers for Medicare and Medicaid’s (CMS’s) Chronic Conditions Data Warehouse (CCW). This file has multiple segments, as briefly described below. The Centers for Medicare & Medicaid Services (CMS) maintains an annual Master Beneficiary Summary File (MBSF) that includes all Medicare beneficiaries. Multilevel Intervention Training Institute (MLTI).Healthcare Teams and Teamwork Processes.Cancer Moonshot℠ Efforts: Federal Cervical Cancer Collaborative.Advancing Rapid Cycle Research in Cancer Care Delivery.Population-based Research to Optimize the Screening Process (PROSPR).Improving the Management of Symptoms During and Following Cancer Treatment (IMPACT).NCI Community Oncology Research Program (NCORP) Cancer Care Delivery Research (CCDR).Accelerating Colorectal Cancer Screening and follow-up through Implementation Science (ACCSIS).Social Determinants of Health by US Census Tract.Adolescent & Young Adult Health Outcomes & Patient Experience Study (AYA HOPE).Interagency Consortium to Promote Health Economics Research on Cancer (HEROiC).Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE).National Health Interview Survey Cancer Control Supplement.SEER-Medicare Health Outcomes Survey (SEER-MHOS) Linked Data Resource.SEER-Consumer Assessment of Healthcare Providers and Systems (SEER-CAHPS) Linked Data Resource.Funding Opportunity Announcements (FOA).

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