Table 1 EMR-based Case Definitions for Identification of Eczema

Case definition 1

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM code starting with 691.xx or 692.xx

Case definition 1b

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM code 691 or 692

Case definition 2

≥ 1 health condition for 3-digit ICD-9-CM code 691, 692

OR

≥ 2 billing/Encounter Diagnosis for 3-digit ICD-9-CM code 691, 692

Case definition 3

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM code starting with 691.xx or 692.xx

OR

≥ 1 medication for ATC code starting with D07, D02A, D11AH

Case definition 4

≥ 1 health condition for ICD-9-CM code starting with 691.xx, 692.xx

OR

≥ 2 billing encounter diagnosis for ICD-9-CM starting with 691.xx, 692.xx

OR

≥ 1 medication for ATC code starting with D07, D02A, D11AH

Case definition 5

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM 691

Case definition 6

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM 692

Case definition 7

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8

Case definition 8

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8

OR

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM 691, 692

Case definition 9

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8

OR

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM 691, 692

AND

≥ 1 medication for ATC code starting with D07, D02A, D11AH

Case definition 10

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8

OR

≥ 1 medication for ATC code starting with D07, D02A, D11AH

Case definition 11

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8 or 692.9

OR

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM 691, 692

AND

≥ 1 medication for ATC code starting with D07, D02A, D11AH

Case definition 12

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8 or 692.9

OR

≥ 1 medication for ATC code starting with D07, D02A, D11AH

Case definition 13

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8 or 692.9

Case definition 14

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8 or 692.9

OR

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM 691 or 692

Case definition 15

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM code starting with 691.xx or 692.xx

AND

≥ 1 health condition, billing or encounter diagnosis for atopy condition ICD-9-CM starting with 493.xx (asthma) or 472.xx/477.xx (rhinitis/hay fever)

OR

≥ 1 allergy documented in the allergy table of the EMR

Case definition 16

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM code starting with 691.xx or 692.xx

AND

≥ 1 health condition, billing or encounter diagnosis for atopy condition ICD-9-CM starting with 493.xx (asthma) or 472.xx/477.xx (rhinitis/hay fever)

OR

≥ 1 food allergy documented in the allergy table of the EMR

Case definition 17

≥ 1 health condition for 3-digit ICD-9-CM code 691 or 692

OR

≥ 2 billing/Encounter Diagnosis for 3-digit ICD-9-CM code 691 or 692

OR

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8 or 692.9

Case definition 18

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8 or 692.9

OR

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM code starting with 691.xx or 692.xx

AND

≥ 1 health condition, billing or encounter diagnosis for atopy condition ICD-9-CM starting with 493.xx (asthma) or 472.xx/477.xx (rhinitis/hay fever)

OR

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM code starting with 691.xx or 692.xx

AND

≥ 1 allergy documented in the allergy table of the EMR

Case definition 19

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM code 691 or 692

AND

≥ 1 health condition, billing or encounter diagnosis for atopy condition ICD-9-CM starting with 493.xx (asthma), or 472.xx/477.xx (rhinitis/hay fever)

OR

≥ 1 allergy documented in the allergy table of the EMR

Case definition 20

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM code 691 or 692

AND

≥ 1 health condition, billing or encounter diagnosis for atopy condition ICD-9-CM starting with 493.xx (asthma), or 472.xx/477.xx (rhinitis/hay fever)

OR

≥ 1 food allergy documented in the allergy table of the EMR

Case definition 21

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8 or 692.9

OR

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM code 691 or 692

AND

≥ 1 health condition, billing or encounter diagnosis for atopy condition ICD-9-CM starting with 493.xx (asthma), or 472.xx/477.xx (rhinitis/hay fever)

OR

≥ 1 allergy documented in the allergy table of the EMR

Case definition 22

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM code 691 or 692

AND

≥ 1 health condition, billing or encounter diagnosis for atopy condition ICD-9-CM starting with 493.xx (asthma), or 472.xx/477.xx (rhinitis/hay fever)

OR

≥ 1 allergy documented in the allergy table of the EMR

OR

≥ 1 medication for ATC code starting with D07, D02A, D11AH

Case definition 23

≥ 1 health condition, billing or encounter diagnosis for ICD-9-CM 691.8 or 692.9

OR

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM code 691 or 692

AND

≥ 1 health condition, billing or encounter diagnosis for atopy condition ICD-9-CM starting with 493.xx (asthma), or 472.xx/477.xx (rhinitis/hay fever)

OR

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM code 691 or 692

AND

≥ 1 allergy documented in the allergy table of the EMR

OR

≥ 1 health condition, billing or encounter diagnosis for 3-digit ICD-9-CM code 691 or 692

AND

≥ 1 medication for ATC code starting with D07, D02A, D11AH