Table 3 Sources of discordance for diagnoses detected by case finding algorithms but not chart review

ICD-9 codes present without diagnosis

24(77)

6(46)

8(89)

19(86)

7(100)

64(78)

Used for unrelated visit

1(3)

3(23)

5(56)

12(55)

2(29)

23(28)

Used for visit for a related condition

3(10)

-

1(11)

3(14)

1(14)

8(10)

Used for visits with queried unconfirmed diagnosis

1(3)

3(23)

2(22)

4(18)

4(57)

14(17)

Inappropriate COPD codes at single site

19(61)

-

-

-

-

19(23)

Medications/Lab

Medications prescribed for other indications

8(26)

7(54)

-

3(14)

-

18(22)

Aberrant Labs

-

-

1(11)

-

-

1(1)

Total Discordant Cases (Chart -/CPCSSN +)*

31(100)

13(100)

9(100)

22(100)

7(100)

82(100)