Assessing data quality from the Clinical Practice Research Datalink: a methodological approach applied to the full blood count blood test

Virdee, Pradeep S.; Fuller, Alice; Jacobs, Michael; Holt, Tim; Birks, Jacqueline

doi:10.1186/s40537-020-00375-w

Journal of Big Data

Table 1 Entity and medical codes in CPRD corresponding to the FBC

From: Assessing data quality from the Clinical Practice Research Datalink: a methodological approach applied to the full blood count blood test

FBC parameter	Entity code	Entity term	Medical code	Medical term
Red blood cell count	194	Red blood cell count	17	Red blood cell (RBC) count
			13,788	Nucleated red blood cell count
			26,931	RBC count NOS
			26,932	RBC count normal
			26,933	RBC count low
			44,213	RBC count abnormal
			50,182	Red cell mass
			57,136	RBC count raised
			58,853	RBC count borderline low
			70,079	RBC count borderline raised
White blood cell count	207	Total White Blood cell count	15	Total white cell count
			1955	Leucopenia
			3372	Leucopenia
			4760	Leucocytosis
			4996	White cell count abnormal
			13,817	White blood count
			13,818	White cell count
			18,516	Leucocytosis
			22,293	Leucocytosis -high white count
			26,325	Leucopenia—low white count
			26,946	Total white cell count NOS
			26,947	Total white blood count
			26,948	White cell count normal
			38,198	Leucocyte count
			45,115	Diff. white cell count normal
			48,015	Total WBC (IMM)
			48,341	Polymorphonuclear leukocyte count
			53,865	Leucocytosis
			92,372	Leukocytosis
Haemoglobin	173	Haemoglobin	4	Haemoglobin estimation
			739	Anaemia unspecified
			795	Iron deficiency anaemias
			3942	Haemoglobin low
			10,404	Hb estimation
			13,755	Haemoglobin—sample sent
			26,272	Haemoglobin borderline high
			26,908	Haemoglobin abnormal
			26,909	Haemoglobin normal
			26,910	Haemoglobin borderline low
			26,912	Haemoglobin estimation NOS
			26,913	Haemoglobin high
			33,284	Haemoglobin requested
			35,749	Haemoglobin very low
			39,601	Haemoglobin not estimated
			41,531	Haemoglobin very high
Haematocrit/packed cell volume	312	Packed cell volume	40	Haematocrit
			99	Haematocrit—PCV
			14,240	Packed cell volume
			19,836	Packed cell volume—PCV
			23,476	Haematocrit—PCV—high
			27,143	Haematocrit—PCV—NOS
			27,144	Haematocrit—PCV—normal
			27,145	Haematocrit—PCV—low
			41,478	Haematocrit—PCV—abnormal
			55,365	Haematocrit—borderline low
			62,347	Haematocrit—borderline high
Mean corpuscular volume	182	Mean corpuscular volume	10	Mean corpuscular volume (MCV)
			2480	MCV—raised
			13,774	Mean cell volume
			26,920	MCV—NOS
			26,921	MCV—normal
			26,922	MCV—low
			41,160	MCV—borderline raised
			52,874	MCV—borderline low
Mean corpuscular haemoglobin	180	Mean corpuscular haemoglobin	20	Mean corpusc. haemoglobin(MCH)
			23,214	Mean cell haemoglobin
			26,917	MCH—normal
			26,918	MCH—low
			40,170	MCH—NOS
			47,174	MCH—borderline raised
			49,225	MCH—abnormal
			51,616	MCH—borderline low
			61,951	MCH—raised
Mean corpuscular haemoglobin concentration	181	MCH Hb Concentration	30	Mean corpusc. Hb. conc. (MCHC)
			26,919	MCHC—raised
			39,202	MCHC—NOS
			47,345	MCHC—normal
			55,183	MCHC—low
			64,474	MCHC—borderline low
			72,488	MCHC—borderline raised
Red blood cell distribution width	361	RBC red blood cell size	64	Red blood cell distribution width
			1191	RBC's—anisocytosis
			1962	RBC's—macrocytic
			9933	RBC's—microcytic
			19,837	RBC—red blood cell size
			51,484	Red blood cell size normal
			52,050	Red blood cell size NOS
Platelets	189	Platelets	7	Platelet count
			3320	Thrombocythaemia
			4006	Thrombocytopenia
			4415	Platelet count abnormal
			26,926	Platelet count NOS
			26,927	Platelet count normal
			37,666	Platelet aggregation test
Mean platelet volume	–	–	14,166	Mean platelet volume
Basophil count	313	Basophil count	25	Basophil count
			27,146	Basophil count NOS
			27,147	Basophil count normal
			27,148	Basophil count abnormal
			53,404	Basophilia
Basophil proportion	–	–	14,096	Percentage basophils
Eosinophil count	168	Eosinophil count	22	Eosinophil count
			13,742	Eosinopenia
			18,531	Eosinophil count raised
			26,905	Eosinophil count NOS
			26,906	Eosinophil count normal
Eosinophil proportion	–	–	19,760	Percentage eosinophils
Lymphocyte count	208	Lymphocyte count	19	Lymphocyte count
			3189	Lymphocytosis
			11,240	Lymphopenia
			23,120	Lymphocyte count normal
			23,121	Lymphocytosis—absolute
			26,949	Lymphocyte count NOS
			26,950	Lymphocyte count abnormal
			32,932	Reactive lymphocyte count
			34,551	Total lymphocyte count (IMM)
			37,677	Lymphocytosis—relative
			42,346	Abnormal lymphocytes
			74,019	Lymphocyte function test
Lymphocyte proportion	–	–	17,621	Percentage lymphocytes
Monocyte count	183	Monocyte count	21	Monocyte count
			9248	Monocytosis
			13,776	Monocyte count NOS
			26,923	Abnormal monocytes
			26,924	Monocyte count normal
			26,925	Monocyte count raised
			44,189	Monocyte count abnormal
			72,849	Monocytopenia
Monocyte proportion	–	–	13,775	Percentage monocytes
Neutrophil count	184	Neutrophil count	18	Neutrophil count
			4463	Neutropenia
			13,777	Neutrophil count NOS
			15,725	Neutrophilia
			23,112	Neutrophil count normal
			23,113	Neutrophil function test
			31,382	Neutrophil count abnormal
			105,211	Band neutrophil count
Neutrophil proportion	–	–	17,622	Percentage neutrophils

FBC full blood count

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