The following codes were added to the existing PT and PTT value sets in the 2016 annual update, effective for reporting in calendar year 2017. For 2016 data collection, organizations currently submitting measures using these value sets may need to map to codes contained within the value set. Partial Thromboplastin Time (2.16.840.1.113762.1.4.1045.25) Code Description 14979-9 aPTT in Platelet poor plasma by Coagulation assay 30323-0 aPTT.factor substitution in Platelet poor plasma by Coagulation assay --1H post incubation with normal plasma 33890-5 aPTT.factor substitution in Platelet poor plasma by Coagulation assay --2H post incubation with normal plasma 33891-3 aPTT.factor substitution in control Platelet poor plasma by Coagulation assay --2H post incubation with normal plasma 34189-1 aPTT.factor substitution in Platelet poor plasma --30M post incubation with normal plasma 38276-2 aPTT in Pooled Platelet poor plasma by Coagulation assay --1 hour post incubation 40100-0 aPTT in Platelet poor plasma by Coagulation assay --baseline 43734-3 aPTT in Platelet poor plasma by Coagulation 1:1 saline 52123-7 aPTT in Platelet poor plasma by Coagulation assay --post heparin adsorption 5946-9 aPTT.factor substitution in Platelet poor plasma by Coagulation assay --immediately after addition of normal plasma 5950-1 aPTT.factor substitution in Platelet poor plasma by Coagulation assay --20M post incubation with normal plasma Prothrombin Time ( 2.16.840.1.113762.1.4.1045.24​) Code Description 5902-2 Prothrombin time (PT)