Abstract: The present invention relates to an immunochromatographic test strip (1) which can be encoded such that the test result cannot be understood by the user who performs the test. The test strip (1) subject of invention, includes at least one sample pad (2) in which the samples are loaded, at least one conjugate pad (3) having analyte-specific labeled antibodies present in the sample, at least one membrane (4) wherein the antibodies bound or unbound to the analyte moves forward and at least one absorption pad (5) providing movement of the sample and a two-dimensional barcode (6) on the membrane (4) that provides the authorities to interpret the results and avoids one who takes test image after test so that the test taker does not immediately understand the test result.