eGFR Cystatin C based formula clarification

General
1

Hi Experts,

  1. I would like to clarify the LOINC code: 50210-4 is specific indicating CKD-EPI formula?

eGFR =
133 x
min(Scys/0.8, 1)-0.499 x
max (Scys/0.8, 1)-1.328 x
0.996Age x
0.932 [if female]

  1. The below equation is also Cystatin C based formula but for paediatrics. As LOINC user guide recommend to create new LOINC concept for different eGFR equation, should I submit a new LOINC concept for below equation? [Reference]

eGFR =
70.69 x (cysC)-0.931

Regards,

Eddie Chong

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