loinc_code,loinc_desc,category,unit_desc
14646-4,HDLc SerPl-sCnc,HDL,
2085-9,HDLc SerPl-mCnc,HDL,
26017-4,HDL3c SerPl-sCnc,HDL,
9833-5,HDL3c SerPl-mCnc,HDL,
2089-1,LDLc SerPl-mCnc,LDL,
22748-8,LDLc SerPl-sCnc,LDL,
18262-6,LDLc SerPl Direct AssaymCnc,LDL,
2091-7,VLDLc SerPl-mCnc,VLDL,
25371-6,VLDLc SerPl-sCnc,VLDL,
4548-4,Hgb A1c % Bld,Hemoglobin,
17856-6,Hgb A1c % Bld HPLC,Hemoglobin,

loinc,desc,category,unit_desc
14646-4,HDLc SerPl-sCnc,HDL,
2085-9,HDLc SerPl-mCnc,HDL,
26017-4,HDL3c SerPl-sCnc,HDL,
9833-5,HDL3c SerPl-mCnc,HDL,
2089-1,LDLc SerPl-mCnc,LDL,
22748-8,LDLc SerPl-sCnc,LDL,
18262-6,LDLc SerPl Direct AssaymCnc,LDL,
2091-7,VLDLc SerPl-mCnc,VLDL,
25371-6,VLDLc SerPl-sCnc,VLDL,
4548-4,Hgb A1c % Bld,Hemoglobin,
17856-6,Hgb A1c % Bld HPLC,Hemoglobin,

Rename key to just loinc.
Rename key to just loinc.

Do this to match the existing documentation.