WHCF10ENV – ICD-10 Medical Claim Form Envelope – Small Self Seal Right Window (500 Ct)ICD-10 Window envelopes specifically designed for HCFA/CMS formsSmall SELF-SEAL inside tint Medical Claim Form envelope with inside tint.Window location is 4″ from left and 1-5/8″ from bottom.Size is 9-1/2″ x 4-1/8″. Window size is 4 1/2″ x 1-1/8″.