Metadata

Name Lichen planus
Type Disease or Syndrome
Group Skin
Data Sources

Clinical Terminologies Read Version 2
ICD-10
Codelists kuan_lichen_planus_YqGNu4ojGFcpbvSUBkptXf_Read2.csv kuan_lichen_planus_YqGNu4ojGFcpbvSUBkptXf_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 (YqGNu4ojGFcpbvSUBkptXf)

Primary care

Disease Readcode Medcode ReadcodeDescr Category
Lichen planus M170000 43912.0 Lichen planus actinicus Diagnosis of Lichen planus
Lichen planus M170100 38610.0 Lichen planus annularis Diagnosis of Lichen planus
Lichen planus M170200 18954.0 Lichen planus atrophicus Diagnosis of Lichen planus
Lichen planus M170300 22154.0 Lichen planus bullosus Diagnosis of Lichen planus
Lichen planus M170400 7983.0 Lichen planus hypertrophicus Diagnosis of Lichen planus
Lichen planus M170500 40455.0 Lichen planus linearis Diagnosis of Lichen planus
Lichen planus M170700 67900.0 Lichen planus obtusus Diagnosis of Lichen planus
Lichen planus M170800 57469.0 Subacute active lichen planus Diagnosis of Lichen planus
Lichen planus M170900 43358.0 Follicular lichen planus Diagnosis of Lichen planus
Lichen planus M170.00 1621.0 Lichen planus Diagnosis of Lichen planus
Lichen planus M170z00 38416.0 Lichen planus NOS Diagnosis of Lichen planus
Lichen planus M240R00 16628.0 Lichen planopilaris Diagnosis of Lichen planus
Lichen planus Myu3200 53843.0 [X]Other lichen planus Diagnosis of Lichen planus

Secondary care

Diagnoses

Disease ICD10code ICD10codeDescr Category
Lichen planus L43 Lichen planus Diagnosis of Lichen planus
Lichen planus L66.1 Lichen planopilaris Diagnosis of Lichen planus

Implementation

At the specified date, a patient is defined as having had 'Lichen planus' 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. 'Lichen planus' diagnosis or history of diagnosis during a consultation 
OR
Secondary care (ICD10)
1. ALL diagnoses of 'Lichen planus' 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