ASSESSMENT OF OVERALL DATA QUALITY AND COMPLETENESS

*WASHINGTON DC* 1999 TABLES

Nine tables for each State show the use of mental health and other
services by Medicaid beneficiaries with mental health diagnoses in 1999.
Enrollment and claims data from the Medicaid Analytic eXtract (MAX)
files from the Centers for Medicare & Medicaid Services (CMS) are the
source for these analyses. Because Medicaid programs differ across the
States, and because administrative data vary in completeness and
quality, caveats about the State's data should be considered in
interpreting the information contained in these tables.

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  **District of Columbia Data Comments**
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  **Diagnosis Codes:** Diagnosis codes were missing on nearly all
  crossover claims, which may account for the extremely low rate (3
  percent) of identification of mental illness among aged beneficiaries
  and the low rate (18 percent) among disabled beneficiaries.

  **Dual Eligibles:** Washington DC did not include dual eligibles with
  restricted benefits in its MAX data, so total enrollment is
  understated.
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+-----------------------+-------+------+----------+-------+----------+
| **Percent of          |       |      |          |       |          |
| Beneficiaries         |       |      |          |       |          |
| Excluded in District  |       |      |          |       |          |
| of Columbia           |       |      |          |       |          |
| Eligibility Group**   |       |      |          |       |          |
+-----------------------+-------+------+----------+-------+----------+
|                       | **    | **Ag | **Di     | **Ad  | **Ch     |
|                       | All** | ed** | sabled** | ult** | ildren** |
+-----------------------+-------+------+----------+-------+----------+
| **Beneficiaries**     | 91795 | 9894 | 28140    | 17332 | 36429    |
|                       |       |      |          |       |          |
| **Included**          |       |      |          |       |          |
+-----------------------+-------+------+----------+-------+----------+
| **Beneficiaries**     | 54838 | 0    | 1667     | 15723 | 37448    |
|                       |       |      |          |       |          |
| **Excluded Because**  |       |      |          |       |          |
|                       |       |      |          |       |          |
| **of Managed Care**   |       |      |          |       |          |
+-----------------------+-------+------+----------+-------+----------+
| **Percent of**        | 37%   | 0%   | 6%       | 48%   | 51%      |
|                       |       |      |          |       |          |
| **Beneficiaries**     |       |      |          |       |          |
|                       |       |      |          |       |          |
| **Excluded Because    |       |      |          |       |          |
| of**                  |       |      |          |       |          |
|                       |       |      |          |       |          |
| **Managed Care**      |       |      |          |       |          |
+-----------------------+-------+------+----------+-------+----------+