The fact that the beneficiary did not have Medicare Part B for the backdated period does not constitute a break in CHAMPVA coverage.
CHAMPVA is secondary payer to Medicare, Medicare supplemental plans, Medicare Health Maintenance Organization (HMO) plans, and any Other Health Insurance (OHI) coverage.
To determine CHAMPVA eligibility, documentation from the Social Security Administration (SSA) verifying enrollment in both Medicare Part A and Medicare B is required.
Beneficiaries, who are otherwise eligible for CHAMPVA, entitled to Medicare Part A and who have Medicare Part B as of June 5, 2001, must continue to carry Medicare Part B to retain CHAMPVA eligibility as secondary payer.
Eligibility for CHAMPVA will be effective for services received on or after October 1, 2001.
This information can also be obtained from the Medicare Web site
A beneficiary over age 65 who is not Medicare Part A eligible may be eligible to purchase Medicare Part A, Premium-HI coverage.An individual begins a regular course of dialysis more than twelve (12) months after the previous course ended; Medicare entitlement is immediately re-established if the individual files an application and still meets the insured status requirements.Under the Medicare ESRD program period of entitlement, all services or supplies directly related to the program or the individual's dialysis is covered.However, CHAMPVA coverage is effective October 1, 2001, based on a legal interpretation of the intent of the law.[GC opinion dated June 9, 2001] Prior to June 5, 2001, CHAMPVA eligibility could be re-established by submitting documentation from the SSA certifying exhaustion of Medicare Part A benefits.If the beneficiary is not eligible for Medicare Part A under their own or former spouse's Social Security Number, a Social Security Administration "Notice of Disallowance" must be submitted with the application for benefits.