The d ate of case detection for a case is defined to b e the earliest of the individual (qualifying) criteria dates for the case. [...] Scenario A Any of the following ICD-9 codes (including all sub-codes) in the B illing or Health Condition table: 4 91.2: OBSTRUCTIVE CHRONIC BRONCHITIS 492: EMPHYSEMA 496: CHRONIC AIRWAY OBSTRUCTION, NOT ELSEWHERE CLASSIFIED S cenario B Any of the following ATC codes (including all I f the H ealthCondition table contains the following sub-codes) in the Medication table: ICD-9 code (including all s. [...] C PCSSN Case Definitions 2021-Q4 Page 1 0 Diabetes Mellitus, Version 2 Scenario A The following ICD-9 code (including all sub-codes) in the Health Condition table OR at least two (identical or different) of the following ICD-9 code (including all sub-codes) in the Encounter Diagnosis table that are recorded on different dates that are ≤2 years apart: 250: DIABETES MELLITUS CPCSSN Case Definitions. [...] CPCSSN Case Definitions 2021-Q4 Page 1 2 D yslipidemia Scenario A The following ICD-9 code (including sub-codes) in the B illing , Encounter Diagnosis , or H ealth Condition table: 272: DISORDERS OF LIPOID METABOLISM Scenario B Any of the following ATC codes (including all I f the DiseaseCase table contains the following disease, sub-codes) in the Medication t able: the medications are insufficien. [...] S cenario A The following ICD-9 code (including all sub-codes) in the Health Condition table O R at least two (identical or different) of the following ICD-9 code (including all sub-codes) in the Billing table that are recorded o n different dates that are ≤ 2 years apart: 2 50: DIABETES MELLITUS Scenario B The following ATC code (including all s ub-codes) in the Medication table: A 10: DRUGS USED.
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