date that Mrs. Banning was eligible to apply for widow’s disability benefits. Claimant’s second issue is not properly before this court, as it was not raised in the district court. See Crow v. Shalala, 40 F.3d 323, 324 (10th Cir.1994). We therefore decline to address it. Moreover, were we to consider it, we would find it unpersuasive. As to issues one and three, the magistrate judge thoroughly reviewed the medical record and determined that, because Mrs. Banning’s first contact with Dr. Berger occurred after November 6, 1998, and there was no evidence of actual disability in the medical record before that date, any retrospective opinion she might have would be insufficient to establish disability. ApltApp. Vol. I at 104; see also Flint v. Sullivan, 951 F.2d 264, 267 (10th Cir.1991) (<HOLDING>). The magistrate judge further concluded that
holding that the filing of notice without motion is insufficient holding that retrospective diag nosis without evidence of actual disability in medical record is insufficient holding that a medical opinion is adequate where it is based upon the veterans medical history examinations and the also describes the disability in sufficient detail holding evidence legally insufficient holding evidence of a 13 permanent partial disability insufficient to establish disability for purposes of ada