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. 2018 May 4;18:328. doi: 10.1186/s12913-018-3110-1

Table 4.

Analyzed Internal Medicine ICD-9-CM Codes out of all ICD-9-CM Codes in Illinois Medicaid

Number of analyzed Codes
(N = 295)
Percent of total IL Medicaid diagnosis codes Reimbursement (dollars) and percent of total IL Medicaid Reimbursement
Information Loss 36
(12%)
1.1 $160,541 (0.6%)
Overlapping categories 54
(18%)
1.7 $2,718,281 (10.4%)
Inconsistent 39
(13%)
1.2 $920,140 (3.5%).
Consistent 166
(56%)
5.2 $7,875,660 (30% of total cost)