Source: dcmtk Version: 3.6.5-1 dcmtk source package is compiled against libicu. However there is a false sense of support for Character Encoding. It seems the general support is written for libiconv specific implementation, and some effort has been made to support partially libicu.
For reference: * https://forum.dcmtk.org/viewtopic.php?t=4566 [...] for ex atm dcmtk/libicu generates errors on ISO 2022 IR 87/ISO 2022 IR 159 dicoms conversion [...] It would make sense to indicate that sort of information in the Debian package binary README file.