Why do most diabetic meters have to be coded to their strips? Bonus question: Why can't I find the answer on google? Ha-ha?

Coding: Since test strips may vary from batch to batch, some models require the user to enter in a code that may be found on the vial of test strips, or a chip that comes with the test strip. By entering the coding or chip into the glucose meter, the meter will be calibrated to that batch of test strips. However, if this process is carried out incorrectly, the meter reading can be up to 4mmol/L inaccurate.

The implications of an incorrectly coded meter can be serious for patients actively managing their diabetes. For miscoded meters, the probability of making an insulin dose error of 2 units is 50%. The probability of making an insulin dose error of 3 units is 24%, compared to 0.49% when using a no coding meter.

This may place patients at increased risk of hypoglycaemia. You didn't search under blood glucose meter.

The test strip chemical property vary from one manufacturing batch to another, manufacturer studied it and correct the error by providing a code. Now a day's most of the diabetes meter or glucometer or glucose monitor are come with non coding type. That is you are not required to enter the code, so many errors are avoided.So it is always better to choose a meter with non coding.

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