Metadata

Name Vitamin B12 deficiency anaemia
Type Disease or Syndrome
Group Haematological or immunological
Data Sources

Clinical Terminologies Read Version 2
ICD-10
Codelists kuan_b12_def_LWC57mbghEZhQ7TQCCEAXQ_Read2.csv kuan_b12_def_LWC57mbghEZhQ7TQCCEAXQ_ICD10.csv
Valid Event Data Range 01/01/1999 - 01/07/2016
Sex Female
Male
Authors Kuan V, Denaxas S, Gonzalez-Izquierdo A, Direk K, Bhatti O, Husain S, Sutaria S, Hingorani M, Nitsch D, Parisinos C, Lumbers T, Mathur R, Sofat R, Casas JP, Wong I, Hemingway H, Hingorani A
Agreement Date 20 May 2019
Version (UUID) 1 (LWC57mbghEZhQ7TQCCEAXQ)

Primary care

Disease Readcode Medcode ReadcodeDescr Category
Vitamin B12 deficiency anaemia 1452 54738 H/O: Anaemia vit.B12 deficient History of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia 66E1.00 11126 B12 defic. initial assessment Vitamin B12 deficiency
Vitamin B12 deficiency anaemia 66E2.00 8013 B12 defic.follow-up assessment Vitamin B12 deficiency
Vitamin B12 deficiency anaemia 66E3.00 31126 B12 injections started Vitamin B12 deficiency
Vitamin B12 deficiency anaemia 66E4.00 42928 B12 injections - at home Vitamin B12 deficiency
Vitamin B12 deficiency anaemia 66E5.00 12329 B12 injections - at surgery Vitamin B12 deficiency
Vitamin B12 deficiency anaemia 66E6.00 66935 Reticulcytosis after B12 Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia 66E..00 7403 B12 deficiency monitoring Vitamin B12 deficiency
Vitamin B12 deficiency anaemia 66E7.00 48714 B12 def.-dubious diag.criteria Vitamin B12 deficiency
Vitamin B12 deficiency anaemia 66E8.00 58599 B12 injections stopped Vitamin B12 deficiency
Vitamin B12 deficiency anaemia 66EZ.00 36840 B12 defic. monitoring NOS Vitamin B12 deficiency
Vitamin B12 deficiency anaemia C262100 2515 Vitamin B12 deficiency Vitamin B12 deficiency
Vitamin B12 deficiency anaemia D010.00 2464 Pernicious anaemia Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D010.11 2813 Addison's anaemia Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D010.12 55370 Biermer's congenital pernicious anaemia Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D010.13 46289 Congenital deficiency of intrinsic factor Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D011000 32953 Vitamin B12 deficiency anaemia due to dietary causes Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D011011 72895 Imerslund - Grasbeck syndrome Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D011013 69275 Vegan's anaemia Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D011100 2482 Vit B12 defic anaemia due to malabsorption with proteinuria Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D011200 62637 Transcobalamin II deficiency Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D011.00 29486 Other vitamin B12 deficiency anaemias Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D011.11 5271 Vitamin B12 deficiency anaemia Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D011X00 6028 Vitamin B12 deficiency anaemia, unspecified Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D011z00 31270 Other vitamin B12 deficiency anaemia NOS Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia D013000 22715 Combined B12 and folate deficiency anaemia Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia Dyu0100 47952 [X]Other dietary vitamin B12 deficiency anaemia Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia Dyu0200 35092 [X]Other vitamin B12 deficiency anaemias Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia Dyu0600 53846 [X]Vitamin B12 deficiency anaemia, unspecified Diagnosis of Vitamin B12 deficiency anaemia
Vitamin B12 deficiency anaemia F11x600 24581 Cerebral degeneration due to vitamin B12 deficiency Vitamin B12 deficiency
Vitamin B12 deficiency anaemia F162.00 7736 Subacute combined degeneration of spinal cord Vitamin B12 deficiency
Vitamin B12 deficiency anaemia F381500 56973 Myasthenic syndrome due to pernicious anaemia Diagnosis of Vitamin B12 deficiency anaemia

Secondary care

Diagnoses

Disease ICD10code ICD10codeDescr Category
Vitamin B12 deficiency anaemia D51 Vitamin B12 deficiency anaemia Diagnosis of Vitamin B12 deficiency anaemia

Implementation

At the specified date, a patient is defined as having had 'Vitamin B12 deficiency anaemia' IF they meet the criteria for any of the following on or before the specified date. The earliest date on which the individual meets any of the following criteria on or before the specified date is defined as the first event date:

Primary care
1. 'Vitamin B12 deficiency anaemia' diagnosis or history of diagnosis during a consultation 
OR
Secondary care (ICD10)
1. ALL diagnoses of 'Vitamin B12 deficiency anaemia' or history of diagnosis during a hospitalization

Publications

Kuan V., Denaxas S., Gonzalez-Izquierdo A. et al. A chronological map of 308 physical and mental health conditions from 4 million individuals in the National Health Service. The Lancet Digital Health - DOI 10.1016/S2589-7500(19)30012-3