LOINC categories
The official LOINC component hierarchy. For the consumer categories, see Categories.
4,391 categories · page 18 of 44 · all codes
pH | Urine | Chemistry - non-challenge · 2 biomarkers LP383455-5 pH | Urine | Urinalysis · 2 biomarkers LP402533-6 Phenylpropionylglycine · 2 biomarkers LP14517-4 Phenylpropionylglycine | Urine | Chemistry - non-challenge · 2 biomarkers LP383965-3 Phenylpyruvate · 2 biomarkers LP15794-8 Phenytoin · 2 biomarkers LP14732-9 Phosphate | Hair | Chemistry - non-challenge · 2 biomarkers LP386052-7 Phosphate crystals amorphous · 2 biomarkers LP18117-9 Phosphate crystals amorphous | Urine sediment | Urinalysis · 2 biomarkers LP402408-1 Phosphatidylglycerol · 2 biomarkers LP15798-9 Phosphatidylglycerol | Amniotic fluid | Chemistry - non-challenge · 2 biomarkers LP382373-1 Pipecolate · 2 biomarkers LP15808-6 Plasma cell precursor · 2 biomarkers LP31552-0 Plasma cell precursor | Blood | Hematology and Cell counts · 2 biomarkers LP393193-0 Plasma cells | Blood | Hematology and Cell counts · 2 biomarkers LP393190-6 Plasma cells | Body fluid | Hematology and Cell counts · 2 biomarkers LP393191-4 Plasma cells | Bone marrow | Hematology and Cell counts · 2 biomarkers LP393192-2 Plasma cells immature · 2 biomarkers LP15079-4 Plasma cells immature | Bone marrow | Hematology and Cell counts · 2 biomarkers LP393199-7 Plasma cells with abnormal marker pattern · 2 biomarkers LP281527-4 Plasma cells with abnormal marker pattern | Bone marrow | Hematology and Cell counts · 2 biomarkers LP407475-5 Platelet distribution width · 2 biomarkers LP29639-9 Platelet distribution width | Blood | Hematology and Cell counts · 2 biomarkers LP393240-9 Platelet factor · 2 biomarkers LP30937-4 Platelet factor 4 · 2 biomarkers LP16902-6 Platelet factor 4 | Platelet poor plasma | Coagulation · 2 biomarkers LP394309-1 Platelet indices · 2 biomarkers LP31668-4 Platelet-induced clot retraction · 2 biomarkers LP449128-0 Platelet-induced clot retraction | Blood | Coagulation · 2 biomarkers LP450584-0 Platelets Large · 2 biomarkers LP29640-7 Platelets Large | Blood | Hematology and Cell counts · 2 biomarkers LP393231-8 Polymorphonuclear cells · 2 biomarkers LP17840-7 Polymorphonuclear cells | Blood | Hematology and Cell counts · 2 biomarkers LP393160-9 Porphobilinogen | Urine | Chemistry - non-challenge · 2 biomarkers LP386503-9 Porphyrins | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP386409-9 Potassium | Blood | Chemistry - non-challenge · 2 biomarkers LP386601-1 Potassium | Red Blood Cells | Chemistry - non-challenge · 2 biomarkers LP386616-9 Potassium | Urine | Chemistry - non-challenge · 2 biomarkers LP386624-3 Prealbumin | Cerebral spinal fluid | Chemistry - non-challenge · 2 biomarkers LP384495-0 Pregnancy associated plasma protein A · 2 biomarkers LP28774-5 Pregnancy associated plasma protein A | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP384930-6 Pristanate (C15:0(CH3)4) · 2 biomarkers LP18151-8 Pristanate (C15:0(CH3)4) | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP382196-6 Procainamide · 2 biomarkers LP16261-7 Progesterone · 2 biomarkers LP14041-5 Progesterone | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP381487-0 Prolactin monomeric · 2 biomarkers LP68274-7 Prolactin monomeric | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP381391-4 Prolactin.dimeric · 2 biomarkers LP200141-2 Prolactin.dimeric | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP381389-8 Proline | DBS | Chemistry - non-challenge · 2 biomarkers LP384269-9 Prolymphocytes | Blood | Hematology and Cell counts · 2 biomarkers LP392935-5 Prolymphocytes | Body fluid | Hematology and Cell counts · 2 biomarkers LP392936-3 Promonocytes | Blood | Hematology and Cell counts · 2 biomarkers LP393040-3 Promonocytes | Body fluid | Hematology and Cell counts · 2 biomarkers LP393041-1 Promyelocytes | Blood | Hematology and Cell counts · 2 biomarkers LP392856-3 Promyelocytes | Body fluid | Hematology and Cell counts · 2 biomarkers LP392857-1 Promyelocytes | Cerebral spinal fluid | Hematology and Cell counts · 2 biomarkers LP392858-9 Protein Fractions | Urine | Chemistry - non-challenge · 2 biomarkers LP384938-9 Protein fractions.oligoclonal bands | Cerebral spinal fluid | Chemistry - non-challenge · 2 biomarkers LP384941-3 Protein fractions.oligoclonal bands | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP384942-1 Protein.monoclonal isotype | Urine | Chemistry - non-challenge · 2 biomarkers LP435281-3 Proteinase 3 · 2 biomarkers LP17259-0 Proteinase 3 | Serum | Serology - non-micro · 2 biomarkers LP403892-5 Protoporphyrin | Red Blood Cells | Chemistry - non-challenge · 2 biomarkers LP386507-0 Protoporphyrin Free · 2 biomarkers LP21411-1 Protoporphyrin Free | Red Blood Cells | Chemistry - non-challenge · 2 biomarkers LP386512-0 Pseudocasts · 2 biomarkers LP31539-7 Pseudocasts | Urine sediment | Urinalysis · 2 biomarkers LP402449-5 Pseudouridine · 2 biomarkers LP199589-5 Pyridoxal | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP385162-5 Pyridoxal phosphate | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP385165-8 Pyridoxine | Serum or Plasma | Chemistry - non-challenge · 2 biomarkers LP385168-2 R-beta aminoisobutyrate · 2 biomarkers LP201654-3 RBC casts | Urine sediment | Urinalysis · 2 biomarkers LP402451-1 Reducing substances | Stool | Chemistry - non-challenge · 2 biomarkers LP385610-3 Reducing substances | Urine | Urinalysis · 2 biomarkers LP402536-9 Reduction in clot strength · 2 biomarkers LP449134-8 Reduction in clot strength | Blood | Coagulation · 2 biomarkers LP450583-2 Renin · 2 biomarkers LP15273-3 Renin | Plasma | Chemistry - non-challenge · 2 biomarkers LP383227-8 Respiratory syncytial virus · 2 biomarkers LP14244-5 Respiratory syncytial virus | XXX | Microbiology · 2 biomarkers LP378922-1 Reticulocytes.mature · 2 biomarkers LP31816-9 Reticulocytes.mature | Blood | Hematology and Cell counts · 2 biomarkers LP392548-6 Reticulocytes.mid · 2 biomarkers LP31817-7 Reticulocytes.mid | Blood | Hematology and Cell counts · 2 biomarkers LP392551-0 Riboflavin · 2 biomarkers LP15853-2 S-adenosylhomocysteine · 2 biomarkers LP200579-3 S-adenosylmethionine · 2 biomarkers LP199517-6 S-beta aminoisobutyrate · 2 biomarkers LP201653-5 Saccharopine · 2 biomarkers LP201690-7 SaO2 | Blood arterial | Chemistry - non-challenge · 2 biomarkers LP383400-1 Segmented neutrophils | Blood | Hematology and Cell counts · 2 biomarkers LP392658-3 Segmented neutrophils | Body fluid | Hematology and Cell counts · 2 biomarkers LP392659-1 Segmented neutrophils | Cerebral spinal fluid | Hematology and Cell counts · 2 biomarkers LP392660-9 Segmented neutrophils | Peritoneal fluid | Hematology and Cell counts · 2 biomarkers LP392661-7 Segmented neutrophils | Pleural fluid | Hematology and Cell counts · 2 biomarkers LP392662-5 Segmented neutrophils | Synovial fluid | Hematology and Cell counts · 2 biomarkers LP392663-3 Siderocytes · 2 biomarkers LP65026-4