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Domain

Laboratory

Lab results, specimens, LOINC codes and pathology

901 laboratory terms

hematology targethem_tgt

The intended destination system, receiving facility, or clinical threshold target associated with a hematology study. Used in data routing workflows and clinical decision support to direct blood panel results to the appropriate care team or to define therapeutic targets for hematologic parameters such as hemoglobin levels.

hematology taxonomy codehem_tax_cd

The NUCC taxonomy code identifying the clinical specialty of the ordering or performing clinician associated with a hematology study, such as a hematologist or oncologist. Used in claims processing and credentialing to validate that blood panel services were rendered by appropriately classified clinical specialists.

hematology temperaturehem_temp

The patient's body temperature recorded at the time of a hematology study or specimen collection. Used as a clinical contextual variable in blood panel interpretation, particularly relevant in fever workups, infectious disease evaluations, and monitoring conditions such as neutropenic fever or sepsis.

hematology termination datehem_term_dt

The calendar date on which a hematology study protocol, treatment course, or monitoring program was concluded or discontinued. Used in clinical data systems to define the endpoint of a patient's hematologic evaluation period and support longitudinal outcome analysis and treatment duration reporting.

hematology timehem_tm

The specific time of day associated with a hematology event, such as specimen collection, result release, or clinician review. Used in laboratory workflows to sequence blood study activities, calculate processing intervals, and ensure accurate temporal documentation within the patient's clinical encounter record.

hematology timestamphem_ts

The combined date and time value capturing when a hematology study event occurred, such as specimen collection, laboratory processing, or result finalization. Used in clinical data warehouses and laboratory systems to establish precise chronological records for blood panel auditing, reporting, and patient safety review.

hematology titlehem_ttl

The formal name or descriptive label assigned to a hematology study, panel, or protocol, such as Complete Blood Count, Comprehensive Metabolic Panel with Differential, or Bone Marrow Biopsy. Used in clinical documentation and reporting to clearly identify the type of blood study ordered or performed.

hematology totalhem_tot

The aggregate sum of values associated with a hematology study, such as total white blood cell count, total billed charges, or total number of component results within a blood panel. Used in clinical reporting and financial analytics to summarize hematology encounter data at the study or encounter level.

hematology total counthem_tot_cnt

The total number of discrete hematology study records, individual blood panel components, or specimen events within a defined dataset or reporting period. Used in population health analytics and laboratory management reporting to quantify the volume of hematologic testing activity across patients or time intervals.

hematology typehem_typ

Classifies the category of hematology study performed, such as complete blood count, peripheral blood smear, coagulation panel, or bone marrow evaluation. Used in laboratory information systems and clinical data repositories to organize and filter blood study records by diagnostic purpose and panel composition.

hematology updated datehem_upd_dt

The timestamp recording when a hematology lab result or blood study record was last modified in the clinical system. Tracks changes to CBC, coagulation panels, or other blood test results, ensuring audit trails and data integrity in laboratory information systems.

hematology urgencyhem_urg

The priority classification assigned to a hematology laboratory order or blood study, indicating required turnaround time. Values typically include STAT, urgent, or routine, guiding laboratory staff in processing CBC, coagulation, or blood typing tests within clinically appropriate timeframes.

hematology valuehem_val

The numeric or coded result of a hematology laboratory measurement, such as hemoglobin level, platelet count, white blood cell count, or hematocrit percentage. Represents the actual quantitative finding returned from blood analysis performed in the clinical laboratory.

hematology versionhem_ver

The sequential version number assigned to a hematology lab result record, incrementing each time the result is amended or corrected. Supports audit tracking and ensures clinicians reference the most current blood study interpretation, particularly for corrected or addended laboratory reports.

hematology ziphem_zip

The postal zip code associated with the facility, patient, or ordering location linked to a hematology laboratory record. Used to support geographic reporting, lab routing decisions, and population-level analysis of blood disorder prevalence across service regions.

hemoglobinhgb

A laboratory measurement of hemoglobin protein concentration in blood, expressed in g/dL, used to diagnose and monitor anemia, polycythemia, and treatment response to erythropoiesis-stimulating agents. Hemoglobin is a component of the Complete Blood Count and is used in HEDIS and Star Ratings measures for anemia management in patients with chronic kidney disease, and in quality metrics for appropriate use of blood transfusions.

hemoglobin A1chba1c

A laboratory measurement of glycated hemoglobin reflecting average blood glucose concentration over the preceding two to three months, expressed as a percentage of total hemoglobin. HbA1c is the primary diagnostic and monitoring test for diabetes mellitus and is a key HEDIS quality measure component for Comprehensive Diabetes Care, with targets typically below 7-8% for most patients and above 9% defining poor glycemic control for quality measure reporting.

hepatitis B surface antigenhbsag

A laboratory serologic marker indicating active hepatitis B virus infection, present in both acute and chronic hepatitis B. HBsAg positivity for more than 6 months confirms chronic hepatitis B infection requiring antiviral therapy consideration and HCC surveillance. HBsAg screening is required before initiating immunosuppressive therapy or certain chemotherapy regimens to detect occult hepatitis B at risk for reactivation.

hepatitis C RNAhcv_rna

A laboratory measurement of hepatitis C virus RNA in blood plasma, expressed in IU/mL, used to confirm active HCV infection following reactive antibody screening, assess viral load before antiviral therapy, and monitor treatment response. Undetectable HCV RNA at 12 weeks after completing direct-acting antiviral therapy confirms sustained virologic response considered a functional cure of HCV infection.

hepatitis C antibodyhcv_ab

A laboratory serologic test detecting antibodies to hepatitis C virus in blood, used as the initial screening test for HCV infection. A reactive HCV antibody result requires confirmatory HCV RNA testing to distinguish active infection from prior resolved infection. HCV antibody screening is recommended for all adults age 18-79 at least once and screening completion is a preventive care quality measure in several payer quality programs.

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