In response, we have marked the metadata and catalog entries as "discontinued." Figures are 100 million Japanese yen (100 Mil. JPY) not seasonally adjusted (NSA). The series runs from 2009Q1 to 2014Q4.

The series resides in the historical catalog (Japan » Government » Central Government » Debt » Quarterly)  and is:

• GVLCBCXUQ.IJPN = [DISCONTINUED] Central Government Debt: Government Bonds converted from The Japan Expressway Holding and Debt Repayment Agency Bonds, (100 Mil. JPY, NSA)

Because catalog locations are subject to change, the upper-right search box on DataBuffet.com provides a "find in catalog" mode that accepts a mnemonic.