Mississippi Administrative Code
Title 23 - Division of Medicaid
Part 101 - Coverage Groups and Processing Applications and Reviews Redetermination Processes
Chapter 7 - Combination Modified Adjusted Gross Income (MAGI) and Aged, Blind, Disabled (ABD) Applications
Rule 23-101-7.2 - Beginning Dates of CHIP Eligibility

A. The benefit start date for CHIP is generally a future month. Coverage authorized by the 3rd (third) day of the current month is effective the current month. Coverage authorized after the 3rd (third) day of the current is effective on the first (1st) of the following month.

B. There is one exception for limited retroactive coverage in CHIP. The start date for a CHIP-eligible newborn may be retroactive to the date of birth if the application for the newborn is filed within thirty-one (31) days of birth (start the thirty-one (31) day count the day following the date of birth).