Description of Case Structure

The CalWIN case number is a seven character identifier, as defined in State regulation 23-253.13.

For cases converted from CDS into CalWIN, the case numbers will be assigned at the point of conversion and generated according to the following parameters:

First Byte (character) for all converted cases will be an “alpha” character (B thru Z) with the exception of vowels (A, E, I, O, U).
For EBT cases the EBT indicator will be used as the “First Byte” alpha character for the converted CalWIN case number.
For Non-EBT cases (cases that do not have an EBT Indicator), conversion will determine the next available alpha character and create the 7 character case number.

Household Composition Group

A “Household Composition Group” (previously known as an Assistance Unit [AU], CalFresh Household or a Medi-Cal Family Budget Unit [FBU]) can be one or more persons. Not more than one Cash or CalFresh program can be included in a single case.

Reminder: Currently in CDS, case numbers contain a FBU and Mult. The FBUs and Mults will NOT continue, as we know them in CDS (as part of the case number) in the CalWIN system.

Medi-Cal Budget Units (MBUs)

Medi-Cal MBUs are assigned specific FBU Numbers as required by program. They will be assigned by the CalWIN system during the EDBC process and will only be used to identify sub-groups within a Household Composition Group and by MEDS.

Note: For Medi-Cal, program type includes primary and secondary aid codes as well as MBUs. CalWIN will assign a default number as the FBU numbers when sending data to MEDS and other interface systems that require the single digit number.

CalWIN will be able to determine the MFBU, MBU and the primary and secondary aid codes for the persons in a single Household Composition Group.

Note: CalWIN will assign a one character FBU number to each Medi-Cal MBU for MEDS purposes.

Description of Case Structure

Household Composition Group

Medi-Cal Budget Units (MBUs)

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