| Code | Display | Definition | V2 Concept Comment | V2 Concept Comment As Published | V2 Concept Comment | V2 Concept Comment As Published |
| F10 | 10% Formalin | 10% Formalin | Tissue preservative, Tissue preservative | Tissue preservative, Tissue preservative | Tissue preservative, Tissue preservative | Tissue preservative, Tissue preservative |
| C32 | 3.2% Citrate | 3.2% Citrate | Blue top tube, Blue top tube | Blue top tube, Blue top tube | Blue top tube, Blue top tube | Blue top tube, Blue top tube |
| C38 | 3.8% Citrate | 3.8% Citrate | Blue top tube, Blue top tube | Blue top tube, Blue top tube | Blue top tube, Blue top tube | Blue top tube, Blue top tube |
| HCL6 | 6N HCL | 6N HCL | 24 HR Urine Additive, 24 HR Urine Additive | 24 HR Urine Additive, 24 HR Urine Additive | 24 HR Urine Additive, 24 HR Urine Additive | 24 HR Urine Additive, 24 HR Urine Additive |
| ACDA | ACD Solution A | ACD Solution A | Yellow top tube, Yellow top tube | Yellow top tube, Yellow top tube | Yellow top tube, Yellow top tube | Yellow top tube, Yellow top tube |
| ACDB | ACD Solution B | ACD Solution B | Yellow top tube, Yellow top tube | Yellow top tube, Yellow top tube | Yellow top tube, Yellow top tube | Yellow top tube, Yellow top tube |
| ACET | Acetic Acid | Acetic Acid | Urine preservative, Urine preservative | Urine preservative, Urine preservative | Urine preservative, Urine preservative | Urine preservative, Urine preservative |
| AMIES | Amies transport medium | Amies transport medium | Protozoa, Protozoa | Protozoa, Protozoa | Protozoa, Protozoa | Protozoa, Protozoa |
| HEPA | Ammonium heparin | Ammonium heparin | Green top tube, Green top tube | Green top tube, Green top tube | Green top tube, Green top tube | Green top tube, Green top tube |
| BACTM | Bacterial Transport medium | Bacterial Transport medium | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture |
| BOR | Borate Boric Acid | Borate Boric Acid | 24HR Urine Additive, 24HR Urine Additive | 24HR Urine Additive, 24HR Urine Additive | 24HR Urine Additive, 24HR Urine Additive | 24HR Urine Additive, 24HR Urine Additive |
| BOUIN | Bouin's solution | Bouin's solution | Tissue, Tissue | Tissue, Tissue | Tissue, Tissue | Tissue, Tissue |
| BF10 | Buffered 10% formalin | Buffered 10% formalin | Tissue, Tissue | Tissue, Tissue | Tissue, Tissue | Tissue, Tissue |
| WEST | Buffered Citrate (Westergren Sedimentation Rate) | Buffered Citrate (Westergren Sedimentation Rate) | Black top tube, Black top tube | Black top tube, Black top tube | Black top tube, Black top tube | Black top tube, Black top tube |
| BSKM | Buffered skim milk | Buffered skim milk | Viral isolation, Viral isolation | Viral isolation, Viral isolation | Viral isolation, Viral isolation | Viral isolation, Viral isolation |
| CARS | Carson's Modified 10% formalin | Carson's Modified 10% formalin | Tissue, Tissue | Tissue, Tissue | Tissue, Tissue | Tissue, Tissue |
| CARY | Cary Blair Medium | Cary Blair Medium | Stool Cultures, Stool Cultures | Stool Cultures, Stool Cultures | Stool Cultures, Stool Cultures | Stool Cultures, Stool Cultures |
| CHLTM | Chlamydia transport medium | Chlamydia transport medium | Chlamydia culture, Chlamydia culture | Chlamydia culture, Chlamydia culture | Chlamydia culture, Chlamydia culture | Chlamydia culture, Chlamydia culture |
| CTAD | CTAD (this should be spelled out if not universally understood) | CTAD (this should be spelled out if not universally understood) | Blue top tube, Blue top tube | Blue top tube, Blue top tube | Blue top tube, Blue top tube | Blue top tube, Blue top tube |
| ENT | Enteric bacteria transport medium | Enteric bacteria transport medium | Bacterial culture, Bacterial culture | Bacterial culture, Bacterial culture | Bacterial culture, Bacterial culture | Bacterial culture, Bacterial culture |
| ENT+ | Enteric plus | Enteric plus | Stool Cultures, Stool Cultures | Stool Cultures, Stool Cultures | Stool Cultures, Stool Cultures | Stool Cultures, Stool Cultures |
| JKM | Jones Kendrick Medium | Jones Kendrick Medium | Bordetella pertussis, Bordetella pertussis | Bordetella pertussis, Bordetella pertussis | Bordetella pertussis, Bordetella pertussis | Bordetella pertussis, Bordetella pertussis |
| KARN | Karnovsky's fixative | Karnovsky's fixative | Tissue, Tissue | Tissue, Tissue | Tissue, Tissue | Tissue, Tissue |
| LIA | Lithium iodoacetate | Lithium iodoacetate | Gray top tube, Gray top tube | Gray top tube, Gray top tube | Gray top tube, Gray top tube | Gray top tube, Gray top tube |
| HEPL | Lithium/Li Heparin | Lithium/Li Heparin | Green top tube, Green top tube | Green top tube, Green top tube | Green top tube, Green top tube | Green top tube, Green top tube |
| M4 | M4 | M4 | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture |
| M4RT | M4-RT | M4-RT | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture |
| M5 | M5 | M5 | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture | Microbiological culture, Microbiological culture |
| MICHTM | Michel's transport medium | Michel's transport medium | IF tests, IF tests | IF tests, IF tests | IF tests, IF tests | IF tests, IF tests |
| MMDTM | MMD transport medium | MMD transport medium | Immunofluorescence, Immunofluorescence | Immunofluorescence, Immunofluorescence | Immunofluorescence, Immunofluorescence | Immunofluorescence, Immunofluorescence |
| HNO3 | Nitric Acid | Nitric Acid | Urine, Urine | Urine, Urine | Urine, Urine | Urine, Urine |
| NONE | None | None | Red or Pink top tube, Red or Pink top tube | Red or Pink top tube, Red or Pink top tube | Red or Pink top tube, Red or Pink top tube | Red or Pink top tube, Red or Pink top tube |
| PAGE | Pages's Saline | Pages's Saline | Acanthaoemba, Acanthaoemba | Acanthaoemba, Acanthaoemba | Acanthaoemba, Acanthaoemba | Acanthaoemba, Acanthaoemba |
| PHENOL | Phenol | Phenol | 24 Hr Urine Additive, 24 Hr Urine Additive | 24 Hr Urine Additive, 24 Hr Urine Additive | 24 Hr Urine Additive, 24 Hr Urine Additive | 24 Hr Urine Additive, 24 Hr Urine Additive |
| KOX | Potassium Oxalate | Potassium Oxalate | Gray top tube, Gray top tube | Gray top tube, Gray top tube | Gray top tube, Gray top tube | Gray top tube, Gray top tube |
| EDTK | Potassium/K EDTA | Potassium/K EDTA | Deprecated. Replaced by EDTK15 and EDTK75, Deprecated. Replaced by EDTK15 and EDTK75 | Deprecated. Replaced by EDTK15 and EDTK75, Deprecated. Replaced by EDTK15 and EDTK75 | Deprecated. Replaced by EDTK15 and EDTK75, Deprecated. Replaced by EDTK15 and EDTK75 | Deprecated. Replaced by EDTK15 and EDTK75, Deprecated. Replaced by EDTK15 and EDTK75 |
| EDTK15 | Potassium/K EDTA 15% | Potassium/K EDTA 15% | Purple top tube, Purple top tube | Purple top tube, Purple top tube | Purple top tube, Purple top tube | Purple top tube, Purple top tube |
| EDTK75 | Potassium/K EDTA 7.5% | Potassium/K EDTA 7.5% | Purple top tube, Purple top tube | Purple top tube, Purple top tube | Purple top tube, Purple top tube | Purple top tube, Purple top tube |
| PVA | PVA (polyvinylalcohol) | PVA (polyvinylalcohol) | O&P, O&P | O&P, O&P | O&P, O&P | O&P, O&P |
| RLM | Reagan Lowe Medium | Reagan Lowe Medium | Bordetella pertussis cultures, Bordetella pertussis cultures | Bordetella pertussis cultures, Bordetella pertussis cultures | Bordetella pertussis cultures, Bordetella pertussis cultures | Bordetella pertussis cultures, Bordetella pertussis cultures |
| SST | Serum Separator Tube (Polymer Gel) | Serum Separator Tube (Polymer Gel) | 'Tiger' Top tube, 'Tiger' Top tube | 'Tiger' Top tube, 'Tiger' Top tube | 'Tiger' Top tube, 'Tiger' Top tube | 'Tiger' Top tube, 'Tiger' Top tube |
| SILICA | Siliceous earth, 12 mg | Siliceous earth, 12 mg | Gray top tube, Gray top tube | Gray top tube, Gray top tube | Gray top tube, Gray top tube | Gray top tube, Gray top tube |
| NAF | Sodium Fluoride | Sodium Fluoride | Gray top tube, Gray top tube | Gray top tube, Gray top tube | Gray top tube, Gray top tube | Gray top tube, Gray top tube |
| FL100 | Sodium Fluoride, 100mg | Sodium Fluoride, 100mg | Urine, Urine | Urine, Urine | Urine, Urine | Urine, Urine |
| FL10 | Sodium Fluoride, 10mg | Sodium Fluoride, 10mg | Urine, Urine | Urine, Urine | Urine, Urine | Urine, Urine |
| NAPS | Sodium polyanethol sulfonate 0.35% in 0.85% sodium chloride | Sodium polyanethol sulfonate 0.35% in 0.85% sodium chloride | Yellow (Blood Culture), Yellow (Blood Culture) | Yellow (Blood Culture), Yellow (Blood Culture) | Yellow (Blood Culture), Yellow (Blood Culture) | Yellow (Blood Culture), Yellow (Blood Culture) |
| HEPN | Sodium/Na Heparin | Sodium/Na Heparin | Green top tube, Green top tube | Green top tube, Green top tube | Green top tube, Green top tube | Green top tube, Green top tube |
| EDTN | Sodium/Na EDTA | Sodium/Na EDTA | Dark Blue top tube, Dark Blue top tube | Dark Blue top tube, Dark Blue top tube | Dark Blue top tube, Dark Blue top tube | Dark Blue top tube, Dark Blue top tube |
| SPS | SPS(this should be spelled out if not universally understood) | SPS(this should be spelled out if not universally understood) | Anticoagulant w/o bacteriocidal properties, Anticoagulant w/o bacteriocidal properties | Anticoagulant w/o bacteriocidal properties, Anticoagulant w/o bacteriocidal properties | Anticoagulant w/o bacteriocidal properties, Anticoagulant w/o bacteriocidal properties | Anticoagulant w/o bacteriocidal properties, Anticoagulant w/o bacteriocidal properties |
| STUTM | Stuart transport medium | Stuart transport medium | Bacterial culture, Bacterial culture | Bacterial culture, Bacterial culture | Bacterial culture, Bacterial culture | Bacterial culture, Bacterial culture |
| THROM | Thrombin | Thrombin | Orange or Grey/Yellow (STAT Chem), Orange or Grey/Yellow (STAT Chem) | Orange or Grey/Yellow (STAT Chem), Orange or Grey/Yellow (STAT Chem) | Orange or Grey/Yellow (STAT Chem), Orange or Grey/Yellow (STAT Chem) | Orange or Grey/Yellow (STAT Chem), Orange or Grey/Yellow (STAT Chem) |
| FDP | Thrombin NIH; soybean trypsin inhibitor (Fibrin Degradation Products) | Thrombin NIH; soybean trypsin inhibitor (Fibrin Degradation Products) | Dark Blue top tube, Dark Blue top tube | Dark Blue top tube, Dark Blue top tube | Dark Blue top tube, Dark Blue top tube | Dark Blue top tube, Dark Blue top tube |
| THYMOL | Thymol | Thymol | 24 Hr Urine Additive, 24 Hr Urine Additive | 24 Hr Urine Additive, 24 Hr Urine Additive | 24 Hr Urine Additive, 24 Hr Urine Additive | 24 Hr Urine Additive, 24 Hr Urine Additive |
| THYO | Thyoglycollate broth | Thyoglycollate broth | Bacterial Isolation, Bacterial Isolation | Bacterial Isolation, Bacterial Isolation | Bacterial Isolation, Bacterial Isolation | Bacterial Isolation, Bacterial Isolation |
| TOLU | Toluene | Toluene | 24 Hr Urine Additive, 24 Hr Urine Additive | 24 Hr Urine Additive, 24 Hr Urine Additive | 24 Hr Urine Additive, 24 Hr Urine Additive | 24 Hr Urine Additive, 24 Hr Urine Additive |
| URETM | Ureaplasma transport medium | Ureaplasma transport medium | Ureaplasma culture, Ureaplasma culture | Ureaplasma culture, Ureaplasma culture | Ureaplasma culture, Ureaplasma culture | Ureaplasma culture, Ureaplasma culture |
| VIRTM | Viral Transport medium | Viral Transport medium | Virus cultures, Virus cultures | Virus cultures, Virus cultures | Virus cultures, Virus cultures | Virus cultures, Virus cultures |