Dual Status Code (occurs 12 times)

Short SAS Name: 
DUAL_&ltmonth&gt

This variable indicates whether the beneficiary was eligible for both Medicare and Medicaid in a give month.

Codes: 
The original source for this variable is the State Medicare Modernization Act (MMA) files that states submit to CMS. Those files are considered the “gold standard” for identifying dual eligibles because the information in them is used to determine the level of Medicare Part D low-income subsidies. Dual eligibles are often divided into “full duals” and “partial duals” based on the level of Medicaid benefits they receive. CMS generally considers beneficiaries to be full duals if they have values of 02, 04, or 08, and to be partial duals if they have values of 01, 03, 05, or 06. Partial duals sometimes divided into the QMB-only population (01) and all other partial duals (03, 05, or 06). There are different ways to classify dually elgible beneficiaries. Additional information regarding various ways to identify dually enrolled populations, refer to a CCW Technical Guidance document entitled: "Options in Determining Dual Eligibles". There are 12 monthly variables - where the 01 through 12 at the end of the variable name correspond with the month (e.g., 01 is January and 12 is December).
CodeCode value
**
Enrolled in Medicare A and/or B, but no Part D enrollment data for the beneficiary. (This status was indicated as 'XX' for 2006-2009)
NA
Non-Medicaid
00
Not Medicare enrolled for the month
01
Qualified Medicare Beneficiary (QMB)-only
02
QMB and full Medicaid coverage, including prescription drugs
03
Specified Low-Income Medicare Beneficiary (SLMB)-only
04
SLMB and full Medicaid coverage, including prescription drugs
05
Qualified Disabled Working Individual (QDWI)
06
Qualifying individuals (QI)
08
Other dual eligible (not QMB, SLMB, QWDI, or QI) with full Medicaid coverage, including prescription drugs
09
Other dual eligible, but without Medicaid coverage
99
Unknown

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This variable is contained in the following files: