ok, please try this
mysql -u root -p openemr -e "INSERT INTO supported_external_dataloads (load_type, load_source, load_release_date, load_filename, load_checksum) VALUES ('ICD10', 'CMS', '2017-10-01', '2018-ICD-10-PCS-Order-File.zip', '264b342310236f2b3927062d2c72cfe3'); INSERT INTO supported_external_dataloads (load_type, load_source, load_release_date, load_filename, load_checksum) VALUES ('ICD10', 'CMS', '2017-10-01', '2018-ICD-10-CM-General-Equivalence-Mappings.zip', '787a025fdcf6e1da1a85be779004f670'); INSERT INTO supported_external_dataloads (load_type, load_source, load_release_date, load_filename, load_checksum) VALUES ('ICD10', 'CMS', '2017-10-01', '2018-ICD-10-Code-Descriptions.zip', '6f9c77440132e30f565222ca9bb6599c'); INSERT INTO supported_external_dataloads (load_type, load_source, load_release_date, load_filename, load_checksum) VALUES ('ICD10', 'CMS', '2017-10-01', '2018-ICD-10-PCS-General-Equivalence-Mappings.zip', 'bb73c80e272da28712887d7979b1cebf');"
and please make sure to copy the downloaded 2018 files to the contrib/icd10 folder