LOINC code for sample storage?

We do longterm storage of clinical samples (plasma, serum, urine, …) in our laboratory upon request (such as sample storage for studies etc.).

The storage of the samples is documented in our LIS.

Is it appropriate at all to assign al LOINC code to stored samples (on could define sample storage as a kind of laboratory method)?

Is there a LOINC code available for sample storage?