Incidence of Psychological Comorbidities in Paediatric and Young Adults With Inflammatory Bowel Disease, and the Impacts on Quality-of-life, Disease Severity and Resource Utilisation: A Population-based Cohort Study in the United Kingdom
Conditions: Inflammatory Bowel Diseases, Depressive Episode, Recurrent Depressive Disorder, Anxiety Disorder, Psychological Disorder, Self Harm, Suicide, Attempted, Parasuicide, Eating Disorders, Body Image Disorder, Attention Deficit Hyperactivity Disorder, Behavioral Disorder, Adjustment Disorders, Acute Stress Disorder, Schizophrenia, Bipolar Disorder, Post-traumatic Stress Disorder, Sleep Disturbance
Sponsor: Momentum Data

 
 
1 
 
 
 
The incidence of psychological comorbidities  
in paediatric and young adults with inflammatory bowel 
disease, and the impacts of mental health conditions on 
quality of life, disease severity and resource utilisation:  
a population-based cohort study in the UK 
 
 
 
Protocol  
 
 
NCT number: NCT05206734 
Study ID: P043 
Document Date: 24th January, 2022 
 
Project highlights 
 This study will provide the first UK-based population level analysis of the 
risk of psychological comorbidities in children, adolescents, and young 
adults with IBD. The data resulting from this project will provide a measure 
of the magnitude of any associations. These insights will be valuable for 
clinicians managing people IBD in this age range; allowing early 
interventions to be targeted to those most at risk, and potentially reducing 
the likelihood of more serious future mental health problems. 
 
 The dataset available for use in this project is one of the highest quality 
primary care data sources available world-wide. It provides the complete 
coded primary care record with robust data on comorbidities and 
treatments. In the paediatric population complete records since birth are 
available for the majority of people. 

 
 
2 
 
 
 Our in-house matching algorithm ensures a higher quality of case-control 
matching than is available using any other existing statistical software or 
tools. This is vital to produce reliable data and satisfy external peer review. 
Matching within a population-based sample has additional advantages 
over the use of secondary care cohorts, US claim-based datasets, or disease 
registry datasets. These advantages include minimisation of bias in the 
control group and the opportunity to select a comparator group affected by 
another chronic condition. 
 
Background 
Inflammatory bowel disease (IBD) comprises 3 main subtypes; ulcerative colitis 
(UC), Crohn’s disease (CD) and IBD unclassified (IBDU). IBD develops at any age; 
with around 10% diagnosed in childhood.(1) Whilst UC is the most common 
subtype of IBD in adults, CD is more common in the paediatric IBD (PIBD) 
population. International trends have confirmed a global rise in the incidence of 
PIBD; in particular, a steep rise in the incidence of CD.(2) In Scotland, data shows 
a dramatic increase in PIBD, especially in incidence of CD which has risen 500% 
over just 40 years.(3) 
  
PIBD is associated with more extensive disease compared to adult onset IBD, with 
additional considerations which include growth failure, delayed puberty, poor 
bone density and psychosocial impact during a vulnerable period of life.(1, 4) The 
goals of treating IBD are to induce and maintain remission and to avoid disease 
complications, 
drug-related 
complications 
and 
unnecessary 
surgery, 
psychological health, promoting a return to, and maintenance of, a normal lifestyle 
that includes education, family, social function and physical activity.(1, 5) Other 
essential goals in children include optimizing growth, puberty, and psychological 
health and promoting a return to, and maintenance of, a normal lifestyle that 
includes education, family, social function, and physical activity.(1) 

 
 
3 
 
 
Psychological comorbidities associated with PIBD include anxiety; which may be 
related to the perceived or actual side effects of IBD therapies, altered body image 
and a feeling of lack of control over their lives, and depression; associated with 
severe/active disease, current steroid use and the need for an ostomy.(6) 
Conflicting results and methodological constraints have limited previous 
understanding of psychosocial functioning in PIBD.(7) Reported rates of clinically 
significant symptoms of depression and anxiety have ranged from 25% to 73% in 
children and adolescents with PIBD.(6) However, recent studies highlight growing 
concerns for psychiatric morbidity in IBD in children and young adults. A US 
study(8) of 58,020 IBD patients aged 5-24 reported a prevalence of psychiatric 
disorders of 21.6%; mainly comprising depression and anxiety disorders. IBD was 
found to be 5 times more likely associated with psychiatric disorders than with 
controls, and the incidence of these disorders was associated with a steady 
increase in trend over time (2% in 2006 compared to 15% in 2017).(8) Similarly, 
Swedish data(9) from 6464 PIBD patients, indicate an association of IBD with 
psychiatric morbidity of 17.3%. Most concerningly, this study reported IBD to be 
significantly associated with suicide attempt and as well as mood disorders, 
anxiety 
disorders, 
eating 
disorders, 
personality 
disorders, 
attention-
deficit/hyperactivity disorder, and autism spectrum disorders. Results for each 
sex were similar. A correlation of age and development of psychiatric disorders 
was indicated for patients with very early-onset IBD (<6 years).  
 
Furthering our understanding of the psychosocial sequalae of IBD in children and 
young adults is particularly important in light of evidence suggesting that 
symptoms of anxiety and depression may decrease adherence to treatment, thus 
impacting on longer term disease outcomes,(6) and has been emphasized in a 
recent call to action issued within gastroenterology to improve understanding and 
early identification of comorbidities associated with IBD.(10) 
 
To the best of our knowledge, there have not been any large population-based 
studies assessing the association between psychosocial comorbidities in IBD in 

 
 
4 
 
children and young adults and disease related outcomes. The aim of this study is 
therefore to fill this data gap, and to examine the following objectives. 
 
Such new insights will be valuable for clinicians in optimising patient care for 
IBD patients; allowing early interventions to be targeted to those most at risk, 
and potentially preventing the development of more serious mental health 
problems such as depression; linked to difficulties with medication adherence, 
and anxiety; which may exacerbate future disease activity.(7, 10) 
 
Ultimately, we anticipate that these data will be useful in understanding the 
potential cycle and interrelationship between IBD and mental health in children 
and young adults. 
 
Objectives: Stream 1 – Incidence of mental health conditions 
Primary Objectives 
 Compare the risk and cumulative incidence of mental health conditions in 
children and young adults with IBD compared to matched population 
controls in the primary care setting, stratified by IBD type 
 
Secondary Objectives 
 Determine severity of mental health conditions in those with and without 
IBD (e.g. evidence of self-harm, suicide attempt, behavioural disorders)  
 
Objectives: Stream 2 – Impacts of mental health conditions 
Primary Objective: 
 Determine the association of mental health conditions in children and 
young adults with IBD on quality-of-life indicators 
Secondary Objectives: 
 Compare IBD severity/disease markers in children and young adults 
with IBD with and without mental health illness 

 
 
5 
 
 Compare healthcare resource utilisation in children and young adults 
with IBD with and without mental health illness 
 
 

 
 
6 
 
Methods 
The study protocol was specified a priori and registered with ClinicalTrials.gov 
(Study identifier: NCT05206734). 
Data source 
The Optimum Patient Care Research Database (OPCRD). This database 
incorporates pseudonymised primary care records from 700 GP practices 
distributed across England, Wales, Scotland and Northern Ireland. The current 
OPCRD cohort size is over 5 million actively registered people, and historic 
records available for 10.1 million people. The cohort dataset can be enhanced 
through direct-to-patient and direct-to-care provider questionnaires at additional 
cost if required. 
 
Study design  
The proposed study will use the retrospectively collected data of all eligible 
patients within the database at the date of data extraction. Within this primary 
care cohort, all patients with IBD comprising of the three main subtypes; 
ulcerative colitis (UC), Crohn’s disease (CD) and IBD unclassified (IBDU), 
excluding microscopic colitis, radiation induced enterocolitis and drug-induced 
enterocolitis, will be identified using diagnostic codes and prescription records. A 
diagnostic algorithm will be developed to facilitate robust case identification of 
IBD and IBD subtypes, as well as mental health outcomes. 
 
Statistical methods 
We will use standard descriptive statistics (mean, standard deviations, etc) to 
describe the characteristics of the study cohort.  

 
 
7 
 
 
Recorded sociodemographic characteristics and clinical features 
Sociodemographic data will comprise by age group, age at diagnosis, gender, 
ethnicity, and socioeconomic status. Ethnicity will be categorised as follows to be 
consistent with the UK official census categories: White, Asian, Black 
African/Caribbean, Mixed, and Other. The index of multiple deprivation (IMD) will 
be used as a measure of socioeconomic status. This is derived from patient 
postcode at the point of data extraction. 
 
Stream 1: Study Cohort 
Stream 1: Definition of people with new onset IBD 
The eligible PIBD cases will comprise all incident cases of PIBD over the last 
decade, we will not follow patients up beyond 01/01/2020 due to changes in 
patient health behaviour and primary care interactions due to COVID-19. We will 
extract sociodemographic details for all these cases and matched controls 
(described below). Sociodemographic data will comprise by age group, gender, 
ethnicity, and socioeconomic status. Ethnicity will be categorised as follows to be 
consistent with the UK official census categories: White, Asian, Black 
African/Caribbean, Mixed, and Other. The index of multiple deprivation (IMD) 
will be used as a measure of socioeconomic status. This is derived from patient 
postcode at the point of data extraction. 
 
Stream 1: Definition of matched controls without IBD 
We will match each incident case of PIBD with controls (children without IBD) 
using propensity score matching (matching on the sociodemographic variables 
list above and matching within primary care practice if numbers allow). People 
with a known diagnosis of irritable bowel syndrome (IBS) will be excluded from 
the potential pool of controls. We will compare the incidence of new onset 
mental health conditions in PIBD and controls using a similar approach to that 
used by Butwick et al. (2019) in their paper exploring psychiatric disorders in a 

 
 
8 
 
PIBD cohort in Sweden.(9) The mental health conditions to be examined are 
listed in table 1 although there is scope to add to or modify these in discussion 
with the study authors. For a composite ‘any psychological condition’ outcome 
(see Table 1), risk will be stratified by age of PIBD onset and sex. 
 
We will then go beyond the analysis of the Swedish study to estimate the 
cumulative risk of the ‘any psychological condition’ composite outcome in PIBD 
patients compared with controls. This will provide a unique, robust, estimate of 
the overall mental health burden (prevalence) in PIBD. 
 
Condition 
Description 
Primary outcomes 
Any psychological 
condition  
A composite of all the chronic psychiatric conditions listed 
below* (depression, anxiety, eating disorders, body image 
disorder, attention-deficit disorder, behavioural disorders, 
adjustment disorder, acute stress disorder, and post-traumatic 
stress disorder) 
Depression 
Major recurrent depression or treated depressive episode 
Anxiety 
Non-phobia related anxiety episodes or disorder 
Secondary outcomes 
Self-harm 
Any coded episode of deliberate self-harm of any type 
Suicide attempt 
Any episode of suicide attempt and suicide related codes, 
including deliberate medication overdose 
Other chronic psychiatric 
conditions 
Eating disorders, body image disorder, attention-deficit 
disorder (ADHD), behavioural disorders, adjustment disorder, 
acute stress disorder, schizophrenia, bipolar disorder and post-
traumatic stress disorder (PTSD) 
Others 
Problems with sleep 
 
*this excludes conditions which are potentially single events i.e. self-harm or 
suicide attempt. (See Appendix 1 – Table s3 for Read Codes and SNOMED Codes 

 
 
9 
 
for mental health conditions, Table s4 for mental health condition algorithms and 
Table s5 for WHO ICD-10 mental health conditions). 
 
Stream 1: Incidence of mental health conditions  
The study will report the incidence of each mental health condition overall in the 
PIBD cases and controls, and adjusted hazard ratios to test the association 
between PIBD and risk of the same mental health conditions. Within the PIBD 
cohort we will examine the relationship between PIBD age of onset, sex, 
ethnicity, and social deprivation and the ‘any psychological condition’ composite 
outcome. 
 
Cox proportional hazards models will be used to compare disease incidence in 
PIBD cases and controls and also when comparing the associations of baseline 
features and outcomes within the PIBD cohort. The study start date will be the 
date of diagnosis of PIBD or, for controls, the date of diagnosis of their matched 
counterpart. The end of follow-up will be the first of; the point of data extraction 
(exact date TBC), the patient’s 25th birthday, date of loss to follow-up (either GP 
practice deregistration or death). All individuals contributing at least six months 
of follow-up time in the analysis will be included. Those with existing evidence of 
the mental health condition prior to baseline will be excluded for analysis of that 
particular outcome where it would not reoccur, for example if individual has 
already received a diagnosis of recurrent depressive disorder they would not 
receive this diagnosis again, although conditions at baseline that can reoccur, 
such as suicide attempt, would not be excluded. Models will be adjusted for age, 
gender, socioeconomic status, ethnicity, and other childhood conditions (asthma, 
atopic dermatitis, allergic rhinitis, thyroid disease, epilepsy, diabetes, cancer, 
juvenile idiopathic arthritis (JIA) including systemic JIA, systemic lupus 
erythematosus (lupus), ankylosing spondylitis (AS) and psoriatic arthritis). 
Statistical significance for analyses will be reported using P values and 95% 
confidence intervals as appropriate. 
 

 
 
10 
 
Cumulative risk (i.e. prevalence) of the ‘any psychological condition’ composite 
outcome will be evaluated up to age 25. Cumulative incidence will be calculated 
by using methods to estimate risk similar to those recently published when 
assessing lifetime risk of other chronic conditions in the Lancet.(11, 12) Key 
outputs will be cumulative risk plots, presenting the cumulative incidence of the 
outcome by age for PIBD patients compared to controls. At a particular age, the 
cumulative incidence estimate can be interpreted as the lifetime incidence of the 
outcome up until the year of age in question. Childhood cumulative risk will be 
defined as the cumulative incidence at age 18.  
 
Stream 1: Sensitivity analysis 
To evaluate the magnitude of potential bias from including, as matched controls, 
people who are registered with GP practices but who do not attend their practice, 
we also repeated the primary analysis including only controls with a least one 
primary care consultation in the year preceding their index date.  
 
All statistical analyses were performed using R statistical package software 
version 3.4.1. The study was conducted in line with the RECORD (Reporting of 
studies conducted using observational routinely collected data) guidelines.(13)  
 
 
Stream 2:  
Stream 2: Study design 
The proposed study will use the retrospectively collected data of all eligible 
patients within the database at the date of data extraction. Within this primary 
care cohort, all patients with IBD will be identified using diagnostic codes and 
prescription records. A diagnostic algorithm will be developed to facilitate robust 
case identification of IBD and IBD subtypes as well as mental health outcomes. 

 
 
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Stream 2: Study cohort 
The eligible IBD cases will comprise all prevalent cases of IBD aged under 25 at 
01/01/2015 (index date) comprising of the three main subtypes; ulcerative colitis 
(UC), Crohn’s disease (CD) and IBD unclassified (IBDU), excluding microscopic 
colitis, radiation induced enterocolitis and drug-induced enterocolitis. We will 
extract sociodemographic details for all individuals. Sociodemographic data will 
comprise by age group, age at diagnosis, sex, ethnicity, and socioeconomic status. 
Ethnicity will be categorised as follows to be consistent with the UK official census 
categories: White, Asian, Black African/Caribbean, Mixed, and Other. The index of 
multiple deprivation (IMD) will be used as a measure of socioeconomic status. 
This is derived from patient postcode at the point of data extraction. 
 
We will identify comorbid psychological condition groups in all people with PIBD. 
These will comprise 3 composite phenotypes; anxiety/panic disorders, major 
depression or depressive episodes, and other psychological conditions. Other 
psychological conditions will be a composite of; eating disorders, body image 
disorder, attention-deficit disorder (ADHD), behavioural disorders, adjustment 
disorder, acute stress disorder, schizophrenia, bipolar disorder and post-
traumatic stress disorder (PTSD). Where numbers are sufficient, subgroups of the 
broad ‘other psychological conditions’ composite may be examined. 
 
At the index date, we will define groups in the IBD case population based on 
mental health phenotype, including a comparator group without mental health 
comorbidity at the index date, and compare the sociodemographic characteristics 
of these groups. 
 
Stream 2: Follow-up 
We will then describe incidence of each study outcome in the five years after the 
index date for each group, and the relative incidence of each outcome in those 
with and without mental health comorbidity. 

 
 
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Stream 2: Study outcomes 
These will comprise the following. 
Quality of life indicators: 
Affective symptoms (depression, low mood, deliberate self-harm, suicidal ideation 
or parasuicide), IBD symptoms, absence from school, absence from work, 
unemployment, substance abuse, and sleep problems. IBD symptoms will 
comprise; abdominal pain, discomforts or bloating, diarrhoea, weight loss, growth 
retardation and tiredness/fatigue. (See Appendix 1 – Table s1 for Read Codes and 
SNOMED codes). 
 
IBD severity indicators: 
Medication use, surgical intervention, nutritional supplement use, and markers of 
nutritional status. Surgical intervention will comprise any abdominal surgery, and 
stoma formation (as a separate outcome). Medication use will comprise use of: 
rectal 5-aminosalicylic acid (5-ASA), oral 5-ASA, rectal steroids, oral steroids, 
antimetabolites, tumour necrosis factor inhibitors (TNFi) and other biologic 
therapies. The latter of these groups may not be well captured in primary care and 
if so this will be reported in the limitations section of the final study manuscript. 
Nutritional supplements will comprise the five most prescribed nutritional 
supplements: Modulen, Fortisip, Ensure, Osmolite, and Neocate. Nutritional 
markers will comprise; being underweight (under the 5th centile of weight for 
height or BMI < 18.5 kg/m2 after age 18) and growth retardation related codes. 
(See Appendix 1 – Table s2 for Read Codes and SNOMED codes). 
 
 
Healthcare resource utilisation: 
Primary care attendances and hospital admissions. Hospital admissions will be 
separated into general admissions (including those for IBD) and psychiatric 
admissions. (See Appendix 1 – Table s2 for Read Codes and SNOMED codes). 
 
 

 
 
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Stream 2: Statistical methods 
We will use standard descriptive statistics (mean, standard deviations, etc) to 
describe the characteristics of the study cohort overall and by mental health 
phenotype. Across mental health condition phenotypes we will describe the 
incidence of recording of all the quality-of-life indicators, IBD severity markers, 
and healthcare resource utilisation outcomes up to five years after the index date 
(01/01/2015), compared to incidence in the group without mental health 
conditions. The end of follow-up will be the first of; 01/01/2020 (5 years after the 
index date) we will not follow patients up into 2020/21 due to changes in patient 
health behaviour and primary care interactions due to COVID-19, the patient’s 25th 
birthday, date of loss to follow-up (either deregistration or death). All individuals 
contributing at least six months of follow-up time in the analysis will be included. 
We will not follow patients up into 2020/21 due to changes in patient health 
behaviour and primary care interactions due to COVID-19.  
 
Relative incidence between those with and without mental health conditions will 
be estimated for repeated events (e.g. number of hospital admissions) and binary 
events (e.g. quality of life indicators) using, as appropriate, Poisson regression, 
negative binomial regression (if we need to account for overdispersion), or zero-
inflated Poisson regression (if we need to model rare events). To account for 
variable duration of follow-up, we will include the natural logarithm of person-
years of follow-up as a model offset. Confidence intervals will be estimated using 
robust SEs. Models will be adjusted for age, gender, socioeconomic status, 
ethnicity, and other childhood conditions (asthma, atopic dermatitis, allergic 
rhinitis, thyroid disease, epilepsy, diabetes, cancer, juvenile idiopathic arthritis 
(JIA) including systemic JIA, systemic lupus erythematosus (lupus), ankylosing 
spondylitis (AS) and psoriatic arthritis). Statistical significance for analyses will be 
reported using P values and 95% confidence intervals as appropriate. 
 
Where numbers allow, we will report absolute and relative incidence in subgroups 
by, mental health condition group, age group (5-<12; 12-<16; 16-<18; 18-<25) 
(child, adolescent, young adult), and sex.  

 
 
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References 
1. 
Wilson DC, Russell RK. Overview of paediatric IBD. Seminars in Pediatric 
Surgery. 2017;26(6):344-8. 
2. 
Benchimol EI, Fortinsky KJ, Gozdyra P, Van Den Heuvel M, Van Limbergen J, 
Griffiths AM. Epidemiology of pediatric inflammatory bowel disease: A 
systematic review of international trends. Inflammatory Bowel Diseases. 
2011;17(1):423-39. 
3. 
Henderson P, Hansen R, Cameron FL, Gerasimidis K, Rogers P, Bisset MW, 
et al. Rising incidence of pediatric inflammatory bowel disease in Scotland*. 
Inflammatory Bowel Diseases. 2012;18(6):999-1005. 
4. 
Grover Z, De Nardi A, Lewindon PJ. Inflammatory bowel disease in 
adolescents. Aust Fam Physician. 2017;46(8):565-71. 
5. 
Turner D, Ricciuto A, Lewis A, D'Amico F, Dhaliwal J, Griffiths AM, et al. 
STRIDE-II: An Update on the Selecting Therapeutic Targets in Inflammatory 
Bowel Disease (STRIDE) Initiative of the International Organization for the 
Study of IBD (IOIBD): Determining Therapeutic Goals for Treat-to-Target 
strategies in IBD. Gastroenterology. 2021;160(5):1570-83. 
6. 
Nasiri S, Kuenzig ME, Benchimol EI. Long-term outcomes of pediatric 
inflammatory bowel disease. Semin Pediatr Surg. 2017;26(6):398-404. 
7. 
Ross SC, Strachan J, Russell RK, Wilson SL. Psychosocial functioning and 
health-related quality of life in paediatric inflammatory bowel disease. J 
Pediatr Gastroenterol Nutr. 2011;53(5):480-8. 
8. 
Thavamani A, Umapathi KK, Khatana J, Gulati R. Burden of Psychiatric 
Disorders among Pediatric and Young Adults with Inflammatory Bowel 
Disease: A Population-Based Analysis. Pediatric Gastroenterology, 
Hepatology & Nutrition. 2019;22(6):527. 
9. 
Butwicka A, Olén O, Larsson H, Halfvarson J, Almqvist C, Lichtenstein P, et 
al. Association of Childhood-Onset Inflammatory Bowel Disease With Risk 
of Psychiatric Disorders and Suicide Attempt. JAMA Pediatrics. 
2019;173(10):969-78. 
10. 
Argollo M, Gilardi D, Peyrin-Biroulet C, Chabot J-F, Peyrin-Biroulet L, 
Danese S. Comorbidities in inflammatory bowel disease: a call for action. 
The Lancet Gastroenterology & Hepatology. 2019;4(8):643-54. 
11. 
Gershon AS, Warner L, Cascagnette P, Victor JC, To T. Lifetime risk of 
developing chronic obstructive pulmonary disease: a longitudinal 
population study. Lancet (London, England). 2011;378(9795):991-6. 
12. 
Rapsomaniki E, Timmis A, George J, Pujades-Rodriguez M, Shah AD, 
Denaxas S, et al. Blood pressure and incidence of twelve cardiovascular 
diseases: lifetime risks, healthy life-years lost, and age-specific associations 
in 1·25 million people. Lancet (London, England). 2014;383(9932):1899-
911. 

 
 
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13. 
Benchimol EI, Smeeth L, Guttmann A, Harron K, Moher D, Petersen I, et al. 
The REporting of studies Conducted using Observational Routinely-
collected health Data (RECORD) statement. PLoS Med. 
2015;12(10):e1001885. 
 

 
 
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Appendices 
Appendix 1  
sTable 1.1. Read and SNOMED codes to be used to identify cases of IBD and IBD subtypes     
 
Ulcerative Colitis (UC) 
Read V2 Code 
Term ID 
Description 
J41.. 
All 
Ulcerative colitis and/or proctitis 
J410. 
All 
Ulcerative proctocolitis 
J4100 
All 
Ulcerative ileocolitis 
J4101 
All 
Ulcerative colitis 
J4102 
All 
Ulcerative rectosigmoiditis 
J4103 
All 
Ulcerative proctitis 
J4104 
All 
Exacerbation of ulcerative colitis 
J410z 
All 
Ulcerative proctocolitis NOS 
J411. 
All 
Ulcerative (chronic) enterocolitis 
J412. 
All 
Ulcerative (chronic) ileocolitis 
J413. 
All 
Ulcerative pancolitis 
N0454 
All 
Juvenile arthritis in ulcerative colitis 
N0310 
All 
Arthropathy in ulcerative colitis 
Read CTV3 Code 
Term ID 
Description 
XE0ag 
All 
Ulcerative colitis 
XaZ2j 
All 
Left sided ulcerative colitis 
XaYzX 
All 
Ulcerative pancolitis 

 
 
17 
 
XaK6E 
All 
Exacerbation of ulcerative colitis 
J410. 
All 
Ulcerative proctocolitis 
J4100 
All 
Ulcerative ileocolitis 
J410z 
All 
Ulcerative proctocolitis NOS 
J4103 
Y30D7 
Ulcerative proctitis 
Jyu41 
All 
[X]Other ulcerative colitis 
SNOMED Code 
Term ID 
Description 
13470001 
 
Chronic ulcerative ileocolitis (disorder)  
14311001 
 
Severe chronic ulcerative colitis (disorder)  
15342002 
 
Chronic ulcerative enterocolitis (disorder) 
24829000 
 
Eosinophilic ulcerative colitis (disorder)  
43752006 
 
Ulcerative colitis and/or proctitis 
52231000 
 
Chronic ulcerative proctitis (disorder)  
52506002 
 
Chronic ulcerative rectosigmoiditis (disorder)  
64766004 
 
Ulcerative colitis (disorder) 
78324009 
 
Mild chronic ulcerative colitis (disorder)  
78712000 
 
Moderate chronic ulcerative colitis (disorder)  
128600008 
 
Acute ulcerative colitis (disorder)  
155764007 
 
Ulcerative colitis 
196986004 
 
Ulcerative proctocolitis 
196987008 
 
Ulcerative ileocolitis 
196988003 
 
Ulcerative colitis 
196989006 
 
Ulcerative proctocolitis 
196990002 
 
Ulcerative proctocolitis NOS 
196991003 
 
Ulcerative enterocolitis 
196992005 
 
Ulcerative ileocolitis 
197535008 
 
[X]Other ulcerative colitis 
201727001 
 
Arthropathy in ulcerative colitis (disorder)  

 
 
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201807008 
 
Juvenile arthritis in ulcerative colitis (disorder)  
235714007 
 
Ulcerative enterocolitis (disorder)  
266447004 
 
Ulcerative colitis 
275549008 
 
History of ulcerative colitis (situation)  
295046003 
 
Ulcerative proctocolitis (disorder)  
404908004 
 
Toxic megacolon due to ulcerative colitis (disorder)  
410484008 
 
Iritis with ulcerative colitis (disorder)  
414156000 
 
Exacerbation of ulcerative colitis (disorder)  
441971007 
 
Chronic left-sided ulcerative colitis (disorder)  
442159003 
 
Chronic ulcerative pancolitis (disorder) 
444546002 
 
Chronic ulcerative colitis (disorder)  
444548001 
 
Ulcerative pancolitis (disorder)  
445243001 
 
Left sided ulcerative colitis (disorder)  
697969008 
 
Ulcerative colitis in remission (disorder)  
732966008 
 
Secondary autoimmune hemolytic anemia co-occurrent and due to ulcerative 
colitis (disorder)  
1085131000119105' 
 
Abscess of intestine co-occurrent and due to chronic ulcerative pancolitis 
(disorder) 
1085141000119101' 
 
Complication due to chronic ulcerative pancolitis (disorder)  
1085151000119104' 
 
Fistula of intestine due to chronic ulcerative pancolitis (disorder)  
1085161000119102' 
 
Intestinal obstruction due to chronic ulcerative pancolitis (disorder)  
1085171000119108' 
 
Rectal hemorrhage due to chronic ulcerative pancolitis (disorder)  
1085181000119106' 
 
Abscess of intestine co-occurrent and due to chronic ulcerative proctitis 
(disorder) 
1085191000119109' 
 
Complication due to chronic ulcerative proctitis (disorder) 
1085201000119107' 
 
Fistula of intestine due to chronic ulcerative proctitis 
1085211000119105' 
 
Intestinal obstruction due to chronic ulcerative proctitis (disorder) 
1085221000119103' 
 
Rectal hemorrhage due to chronic ulcerative proctitis 

 
 
19 
 
1085231000119100' 
 
Abscess of intestine co-occurrent and due to chronic ulcerative rectosigmoiditis 
(disorder)  
1085241000119109' 
 
Complication due to chronic ulcerative rectosigmoiditis (disorder)  
1085251000119106' 
 
Fistula of large intestine due to chronic ulcerative rectosigmoiditis (disorder)  
1085261000119108' 
 
Intestinal obstruction due to chronic ulcerative rectosigmoiditis (disorder)  
1085271000119102' 
 
Rectal hemorrhage due to chronic ulcerative rectosigmoiditis (disorder)  
1092841000119100' 
 
Abscess of intestine co-occurrent and due to ulcerative colitis (disorder)  
1092851000119103' 
 
Complication due to ulcerative colitis (disorder)  
1092861000119101' 
 
Fistula of intestine due to ulcerative colitis (disorder)  
1092871000119107' 
 
Intestinal obstruction due to ulcerative colitis (disorder)  
1092881000119105' 
 
Rectal hemorrhage due to ulcerative colitis (disorder)  
Crohn’s Disease (CD) 
Read V2 Code 
Term ID 
Description 
J40.. 
All 
Regional enteritis- Crohn's disease 
J400. 
All 
Regional enteritis of the small bowel 
J4000 
All 
Regional enteritis of the duodenum 
J4001 
All 
Regional enteritis of the jejunum 
J4002 
All 
Crohn's disease of the termnal ileum 
J4003 
All 
Crohn's disease of the ileum unspecified 
J4004 
All 
Crohn's disease of the ileum NOS 
J4005 
All 
Exacerbation of Crohn's disease of small intestine 
J400z 
All 
Crohn's disease of the small bowel NOS 
J4010 
All 
Regional enteritis of the colon 
J4011 
All 
Regional enteritis of the rectum 
J4012 
All 
Exacerbation of Crohn's disease of large intestine 
J401z 
All 
Crohn's disease of the largel bowel NOS 
J40z. 
All 
Crohn's disease NOS 
Read CTV3 Code 
Term ID 
Description 

 
 
20 
 
XE2QL 
All 
Crohn's disease 
Xa0lh 
All 
Regional enteritis 
X302r 
All 
Crohn's jejunitis 
X302t 
All 
Crohn's ileitis 
J4003 
All 
Crohn's disease of the ileum unspecified 
J4004 
All 
Crohn's disease of the ileum NOS 
J4002 
All 
Crohn's disease of terminal ileum 
J400. 
All 
Regional enteritis of small bowel 
XaK6C 
All 
Exacerbation of Crohn's disease of small intestine 
J400z 
All 
Crohn's disease of the small bowel NOS 
J401. 
All 
Regional enteritis of the large bowel 
XE0af 
All 
Crohn's disease of the large bowel NOS 
XaK6D 
All 
Exacerbation of Crohn's disease of large intestine 
J40z. 
All 
Regional enteritis NOS 
J4010 
All 
Crohn's colitis 
J4011 
All 
Crohn's proctitis 
X3050 
All 
Perianal Crohn's disease 
J4001 
Y30Fy 
Regional enteritis of the jejunum 
Jyu40 
All 
[X]Other Crohn's disease 
SNOMED Code 
Term ID 
Description 
3815005 
 
Crohn's disease of rectum (disorder)  
7620006 
 
Crohn's disease of large bowel (disorder)  
34000006 
 
Crohn's disease (disorder) 
38106008 
 
Crohn's disease of ileum (disorder)  
50440006 
 
Crohn's disease of colon (disorder)  
56287005 
 
Crohn's disease of duodenum (disorder) 
56689002 
 
Crohn's disease of small intestine (disorder)  
61424003 
 
Crohn's disease of pylorus (disorder)  

 
 
21 
 
70622003 
 
Crohn's disease of pyloric antrum (disorder)  
71833008 
 
Crohn's disease of small AND large intestines (disorder) 
91390005 
 
Crohn's disease of jejunum (disorder)  
155761004 
 
Regional enteritis of small bowel 
155762006 
 
Regional enteritis of the large bowel 
155763001 
 
Regional enteritis NOS 
196578009 
 
Crohn's disease of oral soft tissues (disorder) 
196975001 
 
Regional enteritis - Crohn's disease 
196976000 
 
Regional enteritis of the jejunum 
196977009 
 
Crohn's disease of terminal ileum (disorder)  
196978004 
 
Crohn's disease of the ileum unspecified 
196979007 
 
Crohn's disease of the ileum NOS 
196980005 
 
Crohn's disease of the small bowel NOS 
196981009 
 
Regional enteritis of the large bowel 
196982002 
 
(Crohn's colitis) or (Crohn's disease of the large bowel NOS) 
197534007 
 
[X]Other Crohn's disease 
201728006 
 
Arthropathy in Crohn's disease (disorder) 
201805000 
 
Juvenile arthritis in Crohn's disease (disorder) 
234999001 
 
Crohn's disease of gingivae (disorder) 
235607002 
 
Crohn's disease of esophagus (disorder)  
235664007 
 
Crohn's disease of stomach (disorder)  
235796008 
 
Perianal Crohn's disease (disorder) 
266446008 
 
Crohn's disease of the large bowel NOS 
266517004 
 
Regional enteritis - Crohn 
273364009 
 
Crohn's disease activity index (assessment scale_ 
278522007 
 
Regional enteritis 
397172008 
 
Gastrointestinal Crohn's disease (disorder) 
397173003 
 
Crohn's disease of intestine (disorder)  

 
 
22 
 
399946006 
 
Crohn's disease of skin (disorder) 
402375009 
 
Crohn's disease of vulva (disorder) 
402376005 
 
Crohn's disease of penis (disorder) 
402377001 
 
Crohn's disease of scrotum (disorder) 
402378006 
 
Metastatic Crohn's disease of skin (disorder) 
410485009 
 
Iritis with Crohn's disease (disorder) 
413276006 
 
Crohn's stricture of colon (disorder) 
414153008 
 
Exacerbation of Crohn's disease of large intestine (disorder) 
414154002 
 
Exacerbation of Crohn's disease of small intestine (disorder) 
426549001 
 
Crohn's disease in remission (disorder) 
721702009 
 
Crohn disease of anal canal (disorder) 
722850002 
 
Crohn's disease of gastrointestinal anastomosis (disorder) 
726101009 
 
Extraintestinal Crohn's (disorder) | 
733157003 
 
Crohn disease of appendix (disorder)  
733533008 
 
Perianal fistula due to Crohn's disease (disorder) 
737195007 
 
Crohn disease of upper gastrointestinal tract (disorder) 
8161000119106' 
 
Arthritis co-occurrent and due to Crohn's disease (disorder)  
112561000119108' 
 
History of Crohns disease (situation) 
1085751000119100' 
 
Abscess of intestine co-occurrent and due to Crohn's disease of large intestine 
(disorder) 
1085761000119103' 
 
Complication due to Crohn's disease of large intestine (disorder) 
1085771000119109' 
 
Fistula of large intestine due to Crohn's disease (disorder) 
1085781000119107' 
 
Intestinal obstruction due to Crohn's disease of large intestine (disorder) 
1085791000119105' 
 
Rectal hemorrhage due to Crohn's disease of large intestine (disorder) 
1085801000119106' 
 
Abscess of intestine co-occurrent and due to Crohn's disease of small and large 
intestine (disorder) 
1085811000119109' 
 
Complication due to Crohn's disease of small and large intestines (disorder) 
1085821000119102' 
 
Fistula of intestine due to Crohn's disease of small and large intestine (disorder) 

 
 
23 
 
1085831000119104' 
 
Intestinal obstruction due to Crohn's disease of small and large intestine 
(disorder) 
1085841000119108' 
 
Rectal hemorrhage due to Crohn's disease of small and large intestines (disorder) 
1085851000119105' 
 
Abscess of intestine co-occurrent and due to Crohn's disease of small intestine 
(disorder) 
1085861000119107' 
 
Complication due to Crohn's disease of small intestine (disorder) 
1085871000119101' 
 
Fistula of small intestine due to Crohn's disease (disorder) 
1085881000119103' 
 
Intestinal obstruction due to Crohn's disease of small intestine (disorder) 
1085891000119100' 
 
Rectal hemorrhage due to Crohn's disease of small intestine (disorder) 
1085901000119101' 
 
Abscess of intestine co-occurrent and due to Crohn's disease (disorder)  
1085911000119103' 
 
Complication due to Crohn's disease (disorder)  
1085931000119108' 
 
Intestinal obstruction due to Crohn's disease (disorder)  
1085941000119104' 
 
Rectal hemorrhage due to Crohn's disease (disorder) 
10743231000119101' 
 
Stenosis of small intestine co-occurrent and due to Crohn's disease (disorder) 
 
 
 
Inflammatory Bowel Disease unclassified (IBDU) 
Read V2 Code 
Term ID 
Description 
J4... 
All 
Inflammatory bowel disease 
J402. 
All 
Regional ileocolitis 
J41y. 
All 
Other idiopathic proctocolitis 
J41y1 
All 
Toxic megacolon 
J41yz 
All 
Other idiopathic proctocolitis NOS 
J41z. 
All 
Idiopathic proctocolitis NOS 
J43.. 
All 
Other non-infective inflammatory gastroenteritis and colitis 
J435. 
All 
Pouchitis 

 
 
24 
 
J437. 
All 
Colitis 
J438. 
All 
Left sided colitis 
J4z2. 
All 
Non-infective ileitis NOS 
J4z3. 
All 
Non-infective colitis NOS 
J4z4. 
All 
Non-infective sigmoiditis NOS 
J4z5. 
All 
Exacerbation of non-infective colitis 
J4z6. 
All 
Indeterminate colitis 
Read CTV3 Code 
Term ID 
Description 
XE0ae 
All 
Inflammatory bowel disease 
J402. 
All 
Regional ileocolitis 
X303k 
All 
Indeterminate colitis 
J41y1 
All 
Toxic megacolon 
XaB5z 
All 
Enterocolitis 
XE0aj 
All 
Other non-infective inflammatory gastroenteritis and colitis 
Xa3fm 
All 
Non-infective gastrointestinal inflammation, NOS 
XaB5x 
All 
Non-infective enteritis and colitis 
XaK6F 
All 
Exacerbation of non-infective colitis 
X303f 
All 
Colitis 
XaRD4 
All 
Eosinophilic colitis 
X303j 
All 
Non-Crohn's granulomatous colitis 
Xa7nY 
All 
Non-infective colitis 
J4z3. 
All 
Non-infective colitis NOS 
X304G 
All 
Sigmoiditis 
J4z4. 
All 
Non-infective sigmoiditis NOS 
X3047 
All 
Proctitis 
J574C 
All 
Proctitis NOS 
X303e 
All 
Proctocolitis 
J41y. 
All 
Other idiopathic proctocolitis 

 
 
25 
 
J41yz 
All 
Other idiopathic proctocolitis NOS 
J41z. 
All 
Idiopathic proctocolitis NOS 
X304F 
All 
Caecitis 
SNOMED Code 
Term ID 
Description 
24526004 
 
Inflammatory bowel disease (disorder) 
721686000 
 
Inflammatory polyps co-occurrent and due to inflammatory bowel disease 
(disorder)  
6382002 
 
Chronic inflammatory small bowel disease (disorder) 
771333006 
 
Immune dysregulation, inflammatory bowel disease, arthritis, recurrent infection 
syndrome (disorder)  
128999004 
 
Inflammatory disorder of digestive tract (disorder) 
64226004 
 
Colitis 
54597004 
 
Chronic colitis (disorder) 
369445005 
 
Chronic proctocolitis (disorder) 
369447002 
 
Chronic proctocolitis, confluent (disorder) 
369446006 
 
Chronic proctocolitis, patchy (disorder) 
52506002 
 
Chronic ulcerative rectosigmoiditis (disorder) 
373639002 
 
Distal colitis (disorder) 
51290000 
 
Diversion colitis (disorder) 
29120000 
 
Eosinophilic colitis (disorder) 
783185002 
 
Focal active colitis (disorder) 
359660000 
 
Idiopathic colitis (disorder 
235746007 
 
Indeterminate colitis (disorder) 
43752006 
 
Inflammation of small intestine and colon (disorder) 
13470001 
 
Chronic ulcerative ileocolitis (disorder)  
71207007 
 
Noninfectious enteritis (disorder) 
735731005 
 
Chronic non-infectious enteritis of uncertain etiology (disorder) 
307418008 
 
Non-infective enteritis and colitis (disorder) 
14066009 
 
Noninfectious colitis (disorder) 

 
 
26 
 
414155001 
 
Exacerbation of non-infective colitis (disorder) 
53372009 
 
Noninfectious sigmoiditis (disorder) 
788718000 
 
Iritis co-occurrent with inflammatory bowel disease (disorder) 
64613007 
 
Inflammation of small intestine (disorder) 
52457000 
 
Ileitis (disorder) 
51151007 
 
Noninfectious ileitis (disorder) 
196983007 
 
Regional ileocolitis (disorder) 
302168000 
 
Inflammation of large intestine (disorder) 
3951002 
 
Proctitis (disorder) 
313327004 
 
Inflammatory cloacogenic polyp (disorder) 
28536002 
 
Toxic megacolon (disorder) 
 
 
 

 
 
27 
 
sTable 1.2 WHO International Statistical Classification of Diseases (ICD-10) to be used to codes to be used to identify cases of IBD and 
IBD subtypes 
 
Clinical entity 
ICD 10 code 
Definition 
Crohn’s disease 
K50 
Any diagnostic or indicative code for 
Crohn’s disease, excluding ulcerative 
colitis 
Ulcerative colitis
K51 
Any diagnostic or indicative code for 
ulcerative colitis 
 
 
 

 
 
28 
 
Appendix 2  
sTable 2.1 Read and SNOMED codes to be used to identify mental health conditions  
 
Depressive episode 
Read V2 Code 
Term ID 
Description 
E112. 
All 
Single major depressive episode 
E1120 
All 
Single major depressive episode, unspecified 
E1121 
All 
Single major depressive episode, mild 
E1122 
All 
Single major depressive episode, moderate 
E1123 
All 
Single major depressive episode, severe, without mention of psychosis 
E1124 
All 
Single major depressive episode, severe, with psychosis 
E1125 
All 
Single major depressive episode, in partial or unspecified remission 
E1126 
All 
Single major depressive episode, in full remission 
E112z 
All 
Single major depressive episode NOS 
E113. 
All 
Recurrent major depressive episode 
E1130 
All 
Recurrent major depressive episodes, unspecified 
E1131 
All 
Recurrent major depressive episodes, mild 
E1132 
All 
Recurrent major depressive episodes, moderate 
E1133 
All 
Recurrent major depressive episodes, severe, without mention of psychosis 
E1134 
All 
Recurrent major depressive episodes, severe, with psychosis 
E1137 
All 
Recurrent depression 
E113z 
All 
Recurrent major depressive episode NOS 
E118. 
All 
Seasonal affective disorder 
E11y2 
All 
Atypical depressive disorder 

 
 
29 
 
E11z2 
All 
Masked depression 
E130. 
All 
Reactive depressive psychosis 
E135. 
All 
Agitated depression 
E2003 
All 
Anxiety with depression 
E291. 
All 
Prolonged depressive reaction 
E2B.. 
All 
Depressive disorder NEC 
E2B1. 
All 
Chronic depression 
E2B0. 
All 
Postviral depression 
Eu204 
All 
[X]Post-schizophrenic depression 
Eu251 
All 
[X]Schizoaffective disorder, depressive type 
Eu32. 
All 
[X]Depressive episode 
Eu320 
All 
[X]Mild depressive episode 
Eu321 
All 
[X]Moderate depressive episode 
Eu322 
All 
[X]Severe depressive episode without psychotic symptoms 
Eu323 
All 
[X]Severe depressive episode with psychotic symptoms 
Eu324 
All 
[X]Mild depression 
Eu325 
All 
[X]Major depression, mild 
Eu326 
All 
[X]Major depression, moderately severe 
Eu327 
All 
[X]Major depression, severe without psychotic symptoms 
Eu328 
All 
[X]Major depression, severe with psychotic symptoms 
Eu32y 
All 
[X]Other depressive episodes 
Eu32z 
All 
[X]Depressive episode, unspecified 
Eu33. 
All 
[X]Recurrent depressive disorder 
Eu330 
All 
[X]Recurrent depressive disorder, current episode mild 
Eu331 
All 
[X]Recurrent depressive disorder, current episode moderate 

 
 
30 
 
Eu332 
All 
[X]Recurrent depressive disorder, current episode severe without psychotic 
symptoms 
Eu333 
All 
[X]Recurrent depressive disorder, current episode severe with psychotic 
symptoms 
Eu334 
All 
[X]Recurrent depressive disorder, currently in remission 
Eu33y 
All 
[X]Other recurrent depressive disorders 
Eu33z 
All 
[X]Recurrent depressive disorder, unspecified 
Eu412 
All 
[X]Mixed anxiety and depressive disorder 
Read CTV3 Code 
Term ID 
Description 
X00Sb 
All 
Mixed anxiety and depressive disorder 
X00SO 
All 
Depressive disorder 
X761L 
All 
Seasonal affective disorder 
Xa0wV 
All 
Recurrent brief depressive disorder 
X00SQ 
All 
Agitated depression 
XE1YC 
All 
Reactive depression 
X00SR 
All 
Endogenous depression 
X00SS 
All 
Endogenous depression first episode 
XE1Y0 
All 
Single major depressive episode 
E1120 
All 
Single major depressive episode, unspecified 
E1121 
All 
Single major depressive episode, mild 
E1122 
All 
Single major depressive episode, moderate 
E1123 
All 
Single major depressive episode, severe, without mention of psychosis 
E1124 
All 
Single major depressive episode, severe, with psychosis 
XaX53 
All 
Single major depressive episode, severe, with psychosis, psychosis in remission 
E1125 
All 
Single major depressive episode, in partial or unspecified remission 
E1126 
All 
Single major depressive episode, in full remission 
E112z 
All 
Single major depressive episode NOS 

 
 
31 
 
XM1GC 
All 
Endogenous depression - recurrent 
E1130 
All 
Recurrent major depressive episodes, unspecified 
E1131 
All 
Recurrent major depressive episodes, mild 
E1132 
All 
Recurrent major depressive episodes, moderate 
E1133 
All 
Recurrent major depressive episodes, severe, without mention of psychosis 
E1134 
All 
Recurrent major depressive episodes, severe, with psychosis 
E1135 
All 
Recurrent major depressive episodes, in partial or unspecified remission 
E1136 
All 
Recurrent major depressive episodes, in full remission 
E113z 
All 
Recurrent major depressive episode NOS 
X00SU 
All 
Masked depression 
E11y2 
All 
Atypical depressive disorder 
X00S8 
All 
Post-schizophrenic depression 
XSEGJ 
All 
Major depressive disorder 
XSKr7 
All 
Cotard syndrome 
XSGol 
All 
Moderate major depression 
XSGok 
All 
Mild major depression 
XSGom 
All 
Severe major depression without psychotic features 
XSGon 
All 
Severe major depression with psychotic features 
E1137 
All 
Recurrent depression 
E130. 
All 
Reactive depressive psychosis 
E2B.. 
All 
Depressive disorder NEC 
E2B0. 
All 
Postviral depression 
E2B1. 
All 
Chronic depression 
Eu320 
All 
[X]Mild depressive episode 
Eu321 
All 
[X]Moderate depressive episode 
Eu331 
All 
[X]Recurrent depressive disorder, current episode moderate 

 
 
32 
 
XE1Y1 
All 
Recurrent major depressive episodes 
XE1ZY 
All 
[X]Severe depressive episode without psychotic symptoms 
XE1ZZ 
All 
[X]Severe depressive episode with psychotic symptoms 
XE1Za 
All 
[X]Other depressive episodes 
XE1Zb 
All 
[X]Depressive episode, unspecified 
XE1Zd 
All 
[X]Recurrent depressive disorder, current episode severe without psychotic 
symptoms 
XE1Ze 
All 
[X]Recurrent depressive disorder, current episode severe with psychotic 
symptoms 
XE1Zf 
All 
[X]Recurrent depressive disorder, unspecified 
XaB9J 
All 
Depression NOS 
XaCHr 
All 
[X] Single episode agitated depression without psychotic symptoms 
XaCHs 
All 
[X] Single episode major depression without psychotic symptoms 
XaCIs 
All 
Mild depression 
XaCIt 
All 
Moderate depression 
XaCIu 
All 
Severe depression 
SNOMED Code 
Term ID 
Description 
832007' 
 
Moderate major depression (disorder) 
2618002' 
 
Chronic recurrent major depressive disorder (disorder) 
14070001' 
 
Multi-infarct dementia with depression (disorder) 
14183003' 
 
Chronic major depressive disorder, single episode (disorder) 
15193003' 
 
Severe recurrent major depression with psychotic features, mood-incongruent 
(disorder) 
15639000' 
 
Moderate major depression, single episode (disorder) 
18818009' 
 
Moderate recurrent major depression (disorder) 
19527009' 
 
Single episode of major depression in full remission (disorder) 

 
 
33 
 
20250007' 
 
Severe major depression, single episode, with psychotic features, mood-
incongruent (disorder) 
25922000' 
 
Major depressive disorder, single episode with postpartum onset (disorder) 
28475009' 
 
Severe recurrent major depression with psychotic features (disorder) 
30605009' 
 
Major depression in partial remission (disorder) 
33078009' 
 
Severe recurrent major depression with psychotic features, mood-congruent 
(disorder) 
33135002' 
 
Recurrent major depression in partial remission (disorder) 
33736005' 
 
Severe major depression with psychotic features, mood-congruent (disorder) 
35489007' 
 
Depressive disorder (disorder) 
36474008' 
 
Severe recurrent major depression without psychotic features (disorder) 
36923009' 
 
Major depression, single episode (disorder) 
38694004' 
 
Recurrent major depressive disorder with atypical features (disorder) 
39809009' 
 
Recurrent major depressive disorder with catatonic features (disorder) 
40379007' 
 
Mild recurrent major depression (disorder) 
40568001' 
 
Recurrent brief depressive disorder (disorder) 
42925002' 
 
Major depressive disorder, single episode with atypical features (disorder) 
48589009' 
 
Minor depressive disorder (disorder) 
58703003' 
 
Postpartum depression (disorder) 
60099002' 
 
Severe major depression with psychotic features, mood-incongruent (disorder) 
66344007' 
 
Recurrent major depression (disorder) 
69392006' 
 
Major depressive disorder, single episode with catatonic features (disorder) 
70747007' 
 
Major depression single episode, in partial remission (disorder) 
71336009' 
 
Recurrent major depressive disorder with postpartum onset (disorder) 
73867007' 
 
Severe major depression with psychotic features (disorder) 
75084000' 
 
Severe major depression without psychotic features (disorder) 
76441001' 
 
Severe major depression, single episode, without psychotic features (disorder) 

 
 
34 
 
77911002' 
 
Severe major depression, single episode, with psychotic features, mood-
congruent (disorder) 
79298009' 
 
Mild major depression, single episode (disorder) 
79842004' 
 
Stuporous depression (disorder) 
82218004' 
 
Postoperative depression (disorder) 
83458005' 
 
Agitated depression (disorder) 
87414006' 
 
Reactive depression (situational) (disorder) 
87512008' 
 
Mild major depression (disorder) 
161469008' 
 
History of depression (situation) 
191466007' 
 
Arteriosclerotic dementia with depression (disorder) 
191495003' 
 
Drug-induced depressive state (disorder) 
191604000' 
 
Single major depressive episode, severe, with psychosis (disorder) 
191610000' 
 
Recurrent major depressive episodes, mild (disorder) 
191611001' 
 
Recurrent major depressive episodes, moderate (disorder) 
191613003' 
 
Recurrent major depressive episodes, severe, with psychosis (disorder) 
191616006' 
 
Recurrent depression (disorder) 
191659001' 
 
Atypical depressive disorder (disorder) 
191676002' 
 
Reactive depressive psychosis (disorder) 
192046006' 
 
Brief depressive adjustment reaction (disorder) 
192049004' 
 
Prolonged depressive adjustment reaction (disorder) 
192079006' 
 
Postviral depression (disorder) 
192080009' 
 
Chronic depression (disorder) 
231485007' 
 
Post-schizophrenic depression (disorder) 
231499006' 
 
Endogenous depression first episode (disorder) 
231500002' 
 
Masked depression (disorder) 
231504006' 
 
Mixed anxiety and depressive disorder (disorder) 

 
 
35 
 
237349002' 
 
Mild postnatal depression (disorder) 
237350002' 
 
Severe postnatal depression (disorder) 
237739002' 
 
Pseudo-Cushing's syndrome of depression (disorder) 
247803002' 
 
Seasonal affective disorder (disorder) 
268621008' 
 
Recurrent major depressive episodes (disorder) 
272022009' 
 
Complaining of feeling depressed (finding) 
274948002' 
 
Endogenous depression - recurrent (disorder) 
300706003' 
 
Endogenous depression (disorder) 
310495003' 
 
Mild depression (disorder) 
310496002' 
 
Moderate depression (disorder) 
310497006' 
 
Severe depression (disorder) 
319768000' 
 
Recurrent major depressive disorder with melancholic features (disorder) 
320751009' 
 
Major depression, melancholic type (disorder) 
321717001' 
 
Involutional depression (disorder) 
366979004' 
 
Depressed mood (finding) 
370143000' 
 
Major depressive disorder (disorder) 
394924000' 
 
Symptoms of depression (finding) 
395072006' 
 
Counseling for postnatal depression (procedure) 
430852001' 
 
Severe major depression, single episode, with psychotic features (disorder) 
450714000' 
 
Severe major depression (disorder) 
704678007' 
 
Depressed mood with postpartum onset (finding) 
712823008' 
 
Acute depression (disorder) 
718636001' 
 
Minimal depression (disorder) 
719592004' 
 
Moderately severe major depression (disorder) 
719593009' 
 
Moderately severe depression (disorder) 
720451004' 
 
Minimal recurrent major depression (disorder) 

 
 
36 
 
720452006' 
 
Moderately severe recurrent major depression (disorder) 
720453001' 
 
Moderately severe major depression single episode (disorder) 
720454007' 
 
Minimal major depression single episode (disorder) 
720455008' 
 
Minimal major depression (disorder) 
723928009' 
 
Mood disorder with depressive symptoms caused by alcohol (disorder) 
723930006' 
 
Mood disorder with mixed manic and depressive symptoms caused by alcohol 
(disorder) 
724676000' 
 
Mood disorder with depressive symptoms caused by sedative (disorder) 
724677009' 
 
Mood disorder with depressive symptoms caused by hypnotic (disorder) 
724678004' 
 
Mood disorder with depressive symptoms caused by anxiolytic (disorder) 
724690002' 
 
Mood disorder with depressive symptoms caused by cocaine (disorder) 
724757005' 
 
Depressive symptoms due to primary psychotic disorder (disorder) 
726772006' 
 
Major depression with psychotic features (disorder) 
762321000' 
 
Mood disorder with depressive symptoms caused by opioid (disorder) 
762329003' 
 
Mood disorder with depressive symptoms caused by stimulant (disorder) 
762336002' 
 
Mood disorder with depressive symptoms caused by hallucinogen (disorder) 
762339009' 
 
Mood disorder with depressive symptoms caused by volatile inhalant (disorder) 
762512002' 
 
Mood disorder with depressive symptoms caused by synthetic cathinone 
(disorder) 
768835002' 
 
Depression care management (procedure) 
788120007' 
 
Antenatal depression (disorder) 
838529004' 
 
Mood disorder with mixed depressive and manic symptoms caused by 
amfetamine and amfetamine derivative (disorder) 
871840004' 
 
Episode of depression (finding) 
251000119105' 
 
Severe major depression, single episode (disorder) 
281000119103' 
 
Severe recurrent major depression (disorder) 
10211000132109' 
 
Perinatal depression (disorder) 

 
 
37 
 
94631000119100' 
 
Depressive disorder in mother complicating pregnancy (disorder) 
133121000119109' 
 
Severe seasonal affective disorder (disorder) 
199111000000100' 
 
Referral for guided self-help for depression (procedure) 
286711000000107' 
 
Counseling for depression (procedure) 
288751000119101' 
 
Reactive depressive psychosis, single episode (disorder) 
361761000000106' 
 
On full dose long term treatment for depression (finding) 
755321000000106' 
 
Single major depressive episode, severe, with psychosis, psychosis in remission 
(disorder) 
755331000000108' 
 
Recurrent major depressive episodes, severe, with psychosis, psychosis in 
remission (disorder) 
764611000000100' 
 
Recurrent major depressive episodes, severe (disorder) 
764691000000109' 
 
Recurrent major depressive episodes, in partial remission (disorder) 
764701000000109' 
 
Recurrent major depressive episodes, in remission (disorder) 
764711000000106' 
 
Single major depressive episode, in remission (disorder) 
923921000000104' 
 
Referral for depression self-help video (procedure) 
1086471000000100' 
 
Recurrent reactive depressive episodes, severe, with psychosis (disorder) 
1086661000000100' 
 
Reactive depression, prolonged single episode (disorder) 
1086671000000100' 
 
Reactive depression, single episode (disorder) 
1086681000000100' 
 
Reactive depression, recurrent (disorder) 
1086691000000100' 
 
Reactive depression, first episode (disorder) 
1089511000000100' 
 
Recurrent depression with current severe episode and psychotic features 
(disorder) 
1089631000000100' 
 
Recurrent depression with current severe episode without psychotic features 
(disorder) 
1089641000000100' 
 
Recurrent depression with current moderate episode (disorder) 
10811121000119100' 
 
Major depressive disorder in mother complicating childbirth (disorder) 
10811161000119100' 
 
Major depressive disorder in mother complicating pregnancy (disorder) 

 
 
38 
 
10835871000119100' 
 
Depressive disorder in mother complicating childbirth (disorder) 
16238181000119100' 
 
Depressive disorder caused by amphetamine (disorder) 
16238221000119100' 
 
Depressive disorder caused by methamphetamine (disorder) 
16264621000119100' 
 
Recurrent mild major depressive disorder co-occurrent with anxiety (disorder) 
16264821000119100' 
 
Recurrent severe major depressive disorder co-occurrent with anxiety (disorder) 
16264901000119100' 
 
Recurrent moderate major depressive disorder co-occurrent with anxiety 
(disorder) 
16265301000119100' 
 
Recurrent major depressive disorder in partial remission co-occurrent with 
anxiety (disorder) 
16265951000119100' 
 
Mild major depressive disorder co-occurrent with anxiety single episode 
(disorder) 
16266831000119100' 
 
Moderate major depressive disorder co-occurrent with anxiety single episode 
(disorder) 
16266991000119100' 
 
Severe major depressive disorder co-occurrent with anxiety single episode 
(disorder) 
Anxiety episode 
Read V2 Code 
Term ID 
Description 
E200. 
All 
Anxiety states 
E2000 
All 
Anxiety state unspecified 
E2001 
All 
Panic disorder 
E2002 
All 
Generalised anxiety disorder 
E2003 
All 
Anxiety with depression 
E2004 
All 
Chronic anxiety 
E2005 
All 
Recurrent anxiety 
E200z 
All 
Anxiety state NOS 
Eu41. 
All 
[X]Other anxiety disorders 
Eu410 
All 
[X]Panic disorder [episodic paroxysmal anxiety] 

 
 
39 
 
Eu411 
All 
[X]Generalized anxiety disorder 
Eu412 
All 
[X]Mixed anxiety and depressive disorder 
Eu413 
All 
[X]Other mixed anxiety disorders 
Eu41y 
All 
[X]Other specified anxiety disorders 
Eu41z 
All 
[X]Anxiety disorder, unspecified 
Read CTV3 Code 
Term ID 
Description 
E200. 
All 
Anxiety disorder 
XE1Y7 
All 
Panic disorder 
Eu410 
All 
[X]Panic disorder [episodic paroxysmal anxiety] 
E2002 
All 
Generalised anxiety disorder 
X00Sb 
All 
Mixed anxiety and depressive disorder 
X00RP 
All 
Organic anxiety disorder 
E2004 
All 
Chronic anxiety 
E2005 
All 
Recurrent anxiety 
E200z 
All 
Anxiety state NOS 
X00Sc 
All 
Anxiety hysteria 
Eu41. 
All 
[X]Other anxiety disorders 
Eu413 
All 
[X]Other mixed anxiety disorders 
Eu41z 
All 
[X]Anxiety disorder, unspecified 
XE1Zj 
All 
[X]Other specified anxiety disorders 
SNOMED Code 
Term ID 
Description 
1037451000000100' 
 
Referral for psychological management of anxiety (procedure) 
1053831000000100' 
 
Signposting to Anxiety UK (procedure) 
10586006' 
 
Occupation-related stress disorder (disorder) 
10743001000119100' 
 
Anxiety disorder in mother complicating childbirth (disorder) 
109006' 
 
Anxiety disorder of childhood OR adolescence (disorder) 

 
 
40 
 
111487009' 
 
Dream anxiety disorder (disorder) 
11458009' 
 
Anticipatory anxiety, mild (finding) 
11806006' 
 
Separation anxiety disorder of childhood (disorder) 
12398201000119100' 
 
Anxiety disorder caused by methamphetamine (disorder) 
126943008' 
 
Separation anxiety (disorder) 
13438001' 
 
Overanxious disorder of childhood (disorder) 
15277004' 
 
Hallucinogen-induced anxiety disorder (disorder) 
161470009' 
 
History of anxiety state (situation) 
16264621000119100' 
 
Recurrent mild major depressive disorder co-occurrent with anxiety (disorder) 
16264821000119100' 
 
Recurrent severe major depressive disorder co-occurrent with anxiety (disorder) 
16264901000119100' 
 
Recurrent moderate major depressive disorder co-occurrent with anxiety 
(disorder) 
16265301000119100' 
 
Recurrent major depressive disorder in partial remission co-occurrent with 
anxiety (disorder) 
16265701000119100' 
 
 Illness anxiety disorder (disorder) 
16265951000119100' 
 
Mild major depressive disorder co-occurrent with anxiety single episode 
(disorder) 
16266831000119100' 
 
Moderate major depressive disorder co-occurrent with anxiety single episode 
(disorder) 
16266991000119100' 
 
Severe major depressive disorder co-occurrent with anxiety single episode 
(disorder) 
162723006' 
 
On examination - anxious (finding) 
1686006' 
 
Sedative, hypnotic AND/OR anxiolytic-induced anxiety disorder (disorder) 
17496003' 
 
Organic anxiety disorder (disorder) 
191708009' 
 
Chronic anxiety (finding) 
191709001' 
 
Recurrent anxiety (finding) 
192108001' 
 
Disturbance of anxiety and fearfulness in childhood and adolescence (disorder) 

 
 
41 
 
192611004' 
 
Childhood phobic anxiety disorder (disorder) 
197480006' 
 
Anxiety disorder (disorder) 
198288003' 
 
Anxiety state (finding) 
207363009' 
 
Anxiety neurosis (finding) 
21897009' 
 
Generalized anxiety disorder (disorder) 
225216003' 
 
Acknowledging anxiety (procedure) 
225624000' 
 
Panic attack (finding) 
22621000119103' 
 
Anxiety disorder caused by drug (disorder) 
228560001' 
 
Anxiety management training (procedure) 
231502005' 
 
 Situational panic attack (finding) 
231503000' 
 
Non-situational panic attack (finding) 
231504006' 
 
Mixed anxiety and depressive disorder (disorder) 
231506008' 
 
Anxiety hysteria (finding) 
247805009' 
 
Anxiety and fear (finding) 
286644009' 
 
Level of anxiety (finding) 
286710008' 
 
Anxious character (finding) 
286711007' 
 
Over-anxious character (finding) 
286712000' 
 
Fearful character (finding) 
300895004' 
 
Anxiety attack (finding) 
313087008' 
 
Counseling for anxiety (procedure) 
34938008' 
 
Alcohol-induced anxiety disorder (disorder) 
351861000000106' 
 
Stranger anxiety (disorder) 
35429005' 
 
Anticipatory anxiety (finding) 
35607004' 
 
Panic disorder with agoraphobia (disorder) 
36646009' 
 
Anticipatory anxiety, moderate (finding) 
371631005' 
 
Panic disorder (disorder) 

 
 
42 
 
37868008' 
 
Anxiety disorder of adolescence (disorder) 
37872007' 
 
Avoidant disorder of childhood OR adolescence (disorder) 
386808001' 
 
Phobia (finding) 
386810004' 
 
Phobic anxiety disorder (disorder) 
395017009' 
 
Complaining of panic attack (finding) 
405051006' 
 
Level of anxiety (observable entity) 
417676004' 
 
 On examination - panic attack (finding) 
43150009' 
 
Panic disorder without agoraphobia with severe panic attacks (disorder) 
47372000' 
 
Adjustment disorder with anxious mood (disorder) 
48694002' 
 
Anxiety (finding) 
50026000' 
 
Psychoactive substance-induced organic anxiety disorder (disorder) 
51493001' 
 
Cocaine-induced anxiety disorder (disorder) 
51916003' 
 
Biofeedback training by electroencephalogram application in anxiety 
(regime/therapy) 
52910006' 
 
Anxiety disorder due to a general medical condition (disorder) 
53467004' 
 
Anxiety disorder of childhood (disorder) 
53956006' 
 
Panic disorder without agoraphobia with panic attacks in partial remission 
(disorder) 
5509004' 
 
Panic disorder with agoraphobia AND severe panic attacks (disorder) 
55967005' 
 
Phencyclidine-induced anxiety disorder (disorder) 
56576003' 
 
Panic disorder without agoraphobia (disorder) 
5874002' 
 
Anticipatory anxiety, severe (finding) 
61387006' 
 
Moderate anxiety (finding) 
63909006' 
 
Panic disorder with agoraphobia AND panic attacks in partial remission 
(disorder) 
64165008' 
 
Avoidant disorder of childhood (disorder) 
65064003' 
 
Panic disorder without agoraphobia with moderate panic attacks (disorder) 

 
 
43 
 
69479009' 
 
Anxiety hyperventilation (disorder) 
70997004' 
 
Mild anxiety (finding) 
710060004' 
 
Management of anxiety (procedure) 
710841007' 
 
Assessment of anxiety (procedure) 
724708007' 
 
Anxiety disorder caused by methylenedioxymethamphetamine (disorder) 
724722007' 
 
Anxiety disorder caused by dissociative drug (disorder) 
724723002' 
 
Anxiety disorder caused by ketamine (disorder) 
72861004' 
 
Panic disorder without agoraphobia with mild panic attacks (disorder) 
737341006' 
 
Anxiety disorder caused by synthetic cannabinoid (disorder) 
762331007' 
 
Anxiety disorder caused by stimulant (disorder) 
788866004' 
 
 Anxiety due to dementia (finding) 
80583007' 
 
Severe anxiety (panic) (finding) 
81350009' 
 
Free-floating anxiety (finding) 
8185002' 
 
Panic disorder with agoraphobia AND moderate panic attacks (disorder) 
82339009' 
 
 Amphetamine-induced anxiety disorder (disorder) 
85061001' 
 
Separation anxiety disorder of childhood, early onset (disorder) 
858991000000101' 
 
Provision of written information about generalised anxiety disorder (procedure) 
859891000000103' 
 
 Able to manage anxiety (finding) 
861611000000100' 
 
Education about anxiety (procedure) 
89948007' 
 
Panic disorder with agoraphobia AND mild panic attacks (disorder) 
90790003' 
 
Avoidant disorder of adolescence (disorder) 
94641000119109' 
 
Anxiety in pregnancy (disorder) 
Eating disorders 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 

 
 
44 
 
Body image disorders 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Attention-deficit disorder (ADHD) 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Behavioural disorders 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Adjustment disorder 
Read V2 Code 
Term ID 
Description 
E29.. 
All 
Adjustment reaction 
E290. 
All 
Brief depressive reaction 
E2900 
All 
Grief reaction 
E290z 
All 
Brief depressive reaction NOS 
E291. 
All 
Prolonged depressive reaction 
E292. 
All 
Adjustment reaction with predominant disturbance of other emotions 
E2924 
All 
Adjustment reaction with anxious mood 
E292y 
All 
Adjustment reaction with mixed disturbance of emotion 
E292z 
All 
Adjustment reaction with disturbance of other emotion NOS 
E293. 
All 
Adjustment reaction with predominant disturbance of conduct 
E2930 
All 
Adjustment reaction with aggression 
E2931 
All 
Adjustment reaction with antisocial behaviour 

 
 
45 
 
E2932 
All 
Adjustment reaction with destructiveness 
E293z 
All 
Adjustment reaction with predominant disturbance of conduct NOS 
E294. 
All 
Adjustment reaction with mixed disturbance of emotion and conduct 
E29y. 
All 
Other adjustment reactions 
E29y2 
All 
Adjustment reaction with physical symptoms 
E29y3 
All 
Elective mutism due to an adjustment reaction 
E29y5 
All 
Other adjustment reaction with withdrawal 
E29yz 
All 
Other adjustment reactions NOS 
E29z. 
All 
Adjustment reaction NOS 
Read CTV3 Code 
Term ID 
Description 
E29.. 
All 
Adjustment disorder 
E290. 
All 
Brief depressive adjustment reaction 
E290z 
All 
Brief depressive reaction NOS 
E291. 
All 
Prolonged depressive adjustment reaction 
E2924 
All 
Adjustment reaction with anxious mood 
E292y 
All 
Adjustment reaction with mixed disturbance of emotion 
E293. 
All 
Adjustment reaction with predominant disturbance of conduct 
E2930 
All 
Adjustment reaction with aggression 
E2931 
All 
Adjustment reaction with antisocial behaviour 
E2932 
All 
Adjustment reaction with destructiveness 
E293z 
All 
Adjustment reaction with predominant disturbance of conduct NOS 
E294. 
All 
Adjustment reaction with mixed disturbance of emotion and conduct 
E292. 
All 
Adjustment reaction with predominant disturbance of other emotions 
E292z 
All 
Adjustment reaction with disturbance of other emotion NOS 
E29y. 
All 
Other adjustment reactions 
E29yz 
All 
Other adjustment reactions NOS 

 
 
46 
 
E29y2 
All 
Adjustment reaction with physical symptoms 
E29y3 
All 
Elective mutism due to an adjustment reaction 
E29y5 
All 
Other adjustment reaction with withdrawal 
E29z. 
All 
Adjustment reaction NOS 
SNOMED Code 
Term ID 
Description 
17226007 
 
Adjustment disorder (disorder) 
15977008 
 
Adjustment disorder with academic inhibition (disorder) 
47372000 
 
Adjustment disorder with anxious mood (disorder) 
57194009 
 
Adjustment disorder with depressed mood (disorder) 
192046006 
 
Brief depressive adjustment reaction (disorder) 
192049004 
 
Prolonged depressive adjustment reaction (disorder) 
84984002 
 
Adjustment disorder with disturbance of conduct (disorder) 
66381006 
 
Adjustment disorder with mixed disturbance of emotions AND conduct (disorder)
192056005 
 
Adjustment reaction with aggression (disorder) 
192057001 
 
Adjustment reaction with antisocial behavior (disorder) 
192058006 
 
Adjustment reaction with destructiveness (disorder) 
55668003 
 
Adjustment disorder with mixed emotional features (disorder) 
18478005 
 
Adjustment disorder with physical complaints (disorder) 
9674006 
 
Adjustment disorder with withdrawal (disorder) 
32880007 
 
Adjustment disorder with work inhibition (disorder) 
386821008 
 
Adjustment reaction in infancy (disorder) 
386822001 
 
Adjustment reaction of adolescence (disorder) 
386823006 
 
Adjustment reaction of adult life (disorder) 
386824000 
 
Adjustment reaction of childhood (disorder) 

 
 
47 
 
386825004 
 
Adjustment reaction of late life (disorder) 
425914008 
 
Adjustment reaction to medical therapy (disorder) 
192063005 
 
Adjustment reaction with physical symptoms (disorder) 
192064004 
 
Elective mutism due to an adjustment reaction (disorder) 
698697003 
 
Adjustment disorder with mixed disturbance of emotions and conduct in 
remission (disorder) 
Acute stress disorder 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Schizophrenia 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Post-traumatic stress disorder 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Bipolar disorder 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
 
 
 

 
 
48 
 
sTable 2.2 Algorithms used to identify anxiety episodes, depression episodes, and recurrent major depression. Expressions in capitals 
equate to Boolean expressions. *More than 1 year ago. SSRIs = selective serotonin reuptake inhibitors, TCA = tricyclic antidepressants, 
MAOI = monoamine oxidase inhibitors, CBT = cognitive behavioural therapy. 
Clinical entity 
Definition 
Anxiety 
Any coded anxiety episode AND concurrent 
treatment for anxiety 
Depressive episode 
Any coded depressive episode AND 
concurrent treatment for depression 
Recurrent 
depressive disorder 
(Any historical code* for a depressive 
episode AND current treatment for 
depression) OR Any code for recurrent 
depressive disorder 
Anxiety treatments 
SSRIs, anxiolytics, counselling, CBT, and 
psychotherapy 
Depression 
treatments 
SSRIs, TCAs, MAOIs, counselling, CBT, and 
psychotherapy 
 
 
 
 

 
 
49 
 
sTable 2.3 WHO International Statistical Classification of Diseases (ICD-10) for mental health conditions 
Clinical entity 
ICD 10 code 
Definition 
Depressive 
episode 
F32 
Any coded depressive episode AND 
concurrent treatment for depression 
Recurrent 
depressive 
disorder 
F33 
(Any historical code* for a depressive 
episode AND current treatment for 
depression) OR Any code for recurrent 
depressive disorder 
Depression 
treatments 
NA 
SSRIs, TCAs, MAOIs, counselling, CBT, 
and psychotherapy 
Anxiety 
F41 
Any coded anxiety episode AND 
concurrent treatment for anxiety 
Anxiety 
treatments 
NA 
SSRIs, anxiolytics, counselling, CBT, and 
psychotherapy 
Self-harm  
X60-X84 
Any diagnostic or indicative code for 
any form of self-harm,  
including suicide attempt 
Eating disorders F50 
Any diagnostic or indicative code for 
eating disorders  

 
 
50 
 
Body image 
disorders 
F45.2 
Any diagnostic or indicative code for 
body image / dysmorphic disorder 
(excluding hypochondriacal disorders 
not associated with body image) 
Attention-deficit 
disorders 
F90.0 
Any diagnostic or indicative code for 
disturbance of activity and attention 
Behavioural 
disorders 
F91 
F92 
Any diagnostic or indicative code for 
conduct disorders 
Adjustment 
disorders  
F43.2 
Any diagnostic or indicative code for 
adjustment disorders 
Acute stress 
disorders 
F43.0 
Any diagnostic or indicative code for 
acute stress disorders 
Post-traumatic 
stress disorder 
F43.1 
Any diagnostic or indicative code for 
Post-traumatic stress disorder 
 
 

 
 
51 
 
Appendix 3 
sTable 3.1 Read and SNOMED codes to be used to identify quality of life  
Depressive episode 
Read V2 Code 
Term ID 
Description 
E112. 
All 
Single major depressive episode 
E1120 
All 
Single major depressive episode, unspecified 
E1121 
All 
Single major depressive episode, mild 
E1122 
All 
Single major depressive episode, moderate 
E1123 
All 
Single major depressive episode, severe, without mention of psychosis 
E1124 
All 
Single major depressive episode, severe, with psychosis 
E1125 
All 
Single major depressive episode, in partial or unspecified remission 
E1126 
All 
Single major depressive episode, in full remission 
E112z 
All 
Single major depressive episode NOS 
E113. 
All 
Recurrent major depressive episode 
E1130 
All 
Recurrent major depressive episodes, unspecified 
E1131 
All 
Recurrent major depressive episodes, mild 
E1132 
All 
Recurrent major depressive episodes, moderate 
E1133 
All 
Recurrent major depressive episodes, severe, without mention of psychosis 
E1134 
All 
Recurrent major depressive episodes, severe, with psychosis 
E1137 
All 
Recurrent depression 
E113z 
All 
Recurrent major depressive episode NOS 
E118. 
All 
Seasonal affective disorder 
E11y2 
All 
Atypical depressive disorder 
E11z2 
All 
Masked depression 
E130. 
All 
Reactive depressive psychosis 

 
 
52 
 
E135. 
All 
Agitated depression 
E2003 
All 
Anxiety with depression 
E291. 
All 
Prolonged depressive reaction 
E2B.. 
All 
Depressive disorder NEC 
E2B1. 
All 
Chronic depression 
E2B0. 
All 
Postviral depression 
Eu204 
All 
[X]Post-schizophrenic depression 
Eu251 
All 
[X]Schizoaffective disorder, depressive type 
Eu32. 
All 
[X]Depressive episode 
Eu320 
All 
[X]Mild depressive episode 
Eu321 
All 
[X]Moderate depressive episode 
Eu322 
All 
[X]Severe depressive episode without psychotic symptoms 
Eu323 
All 
[X]Severe depressive episode with psychotic symptoms 
Eu324 
All 
[X]Mild depression 
Eu325 
All 
[X]Major depression, mild 
Eu326 
All 
[X]Major depression, moderately severe 
Eu327 
All 
[X]Major depression, severe without psychotic symptoms 
Eu328 
All 
[X]Major depression, severe with psychotic symptoms 
Eu32y 
All 
[X]Other depressive episodes 
Eu32z 
All 
[X]Depressive episode, unspecified 
Eu33. 
All 
[X]Recurrent depressive disorder 
Eu330 
All 
[X]Recurrent depressive disorder, current episode mild 
Eu331 
All 
[X]Recurrent depressive disorder, current episode moderate 
Eu332 
All 
[X]Recurrent depressive disorder, current episode severe without psychotic 
symptoms 
Eu333 
All 
[X]Recurrent depressive disorder, current episode severe with psychotic 
symptoms 

 
 
53 
 
Eu334 
All 
[X]Recurrent depressive disorder, currently in remission 
Eu33y 
All 
[X]Other recurrent depressive disorders 
Eu33z 
All 
[X]Recurrent depressive disorder, unspecified 
Eu412 
All 
[X]Mixed anxiety and depressive disorder 
Read CTV3 Code 
Term ID 
Description 
X00Sb 
All 
Mixed anxiety and depressive disorder 
X00SO 
All 
Depressive disorder 
X761L 
All 
Seasonal affective disorder 
Xa0wV 
All 
Recurrent brief depressive disorder 
X00SQ 
All 
Agitated depression 
XE1YC 
All 
Reactive depression 
X00SR 
All 
Endogenous depression 
X00SS 
All 
Endogenous depression first episode 
XE1Y0 
All 
Single major depressive episode 
E1120 
All 
Single major depressive episode, unspecified 
E1121 
All 
Single major depressive episode, mild 
E1122 
All 
Single major depressive episode, moderate 
E1123 
All 
Single major depressive episode, severe, without mention of psychosis 
E1124 
All 
Single major depressive episode, severe, with psychosis 
XaX53 
All 
Single major depressive episode, severe, with psychosis, psychosis in remission 
E1125 
All 
Single major depressive episode, in partial or unspecified remission 
E1126 
All 
Single major depressive episode, in full remission 
E112z 
All 
Single major depressive episode NOS 
XM1GC 
All 
Endogenous depression - recurrent 
E1130 
All 
Recurrent major depressive episodes, unspecified 
E1131 
All 
Recurrent major depressive episodes, mild 

 
 
54 
 
E1132 
All 
Recurrent major depressive episodes, moderate 
E1133 
All 
Recurrent major depressive episodes, severe, without mention of psychosis 
E1134 
All 
Recurrent major depressive episodes, severe, with psychosis 
E1135 
All 
Recurrent major depressive episodes, in partial or unspecified remission 
E1136 
All 
Recurrent major depressive episodes, in full remission 
E113z 
All 
Recurrent major depressive episode NOS 
X00SU 
All 
Masked depression 
E11y2 
All 
Atypical depressive disorder 
X00S8 
All 
Post-schizophrenic depression 
XSEGJ 
All 
Major depressive disorder 
XSKr7 
All 
Cotard syndrome 
XSGol 
All 
Moderate major depression 
XSGok 
All 
Mild major depression 
XSGom 
All 
Severe major depression without psychotic features 
XSGon 
All 
Severe major depression with psychotic features 
E1137 
All 
Recurrent depression 
E130. 
All 
Reactive depressive psychosis 
E2B.. 
All 
Depressive disorder NEC 
E2B0. 
All 
Postviral depression 
E2B1. 
All 
Chronic depression 
Eu320 
All 
[X]Mild depressive episode 
Eu321 
All 
[X]Moderate depressive episode 
Eu331 
All 
[X]Recurrent depressive disorder, current episode moderate 
XE1Y1 
All 
Recurrent major depressive episodes 
XE1ZY 
All 
[X]Severe depressive episode without psychotic symptoms 
XE1ZZ 
All 
[X]Severe depressive episode with psychotic symptoms 

 
 
55 
 
XE1Za 
All 
[X]Other depressive episodes 
XE1Zb 
All 
[X]Depressive episode, unspecified 
XE1Zd 
All 
[X]Recurrent depressive disorder, current episode severe without psychotic 
symptoms 
XE1Ze 
All 
[X]Recurrent depressive disorder, current episode severe with psychotic 
symptoms 
XE1Zf 
All 
[X]Recurrent depressive disorder, unspecified 
XaB9J 
All 
Depression NOS 
XaCHr 
All 
[X] Single episode agitated depression without psychotic symptoms 
XaCHs 
All 
[X] Single episode major depression without psychotic symptoms 
XaCIs 
All 
Mild depression 
XaCIt 
All 
Moderate depression 
XaCIu 
All 
Severe depression 
SNOMED Code 
Term ID 
Description 
832007' 
 
Moderate major depression (disorder) 
2618002' 
 
Chronic recurrent major depressive disorder (disorder) 
14070001' 
 
Multi-infarct dementia with depression (disorder) 
14183003' 
 
Chronic major depressive disorder, single episode (disorder) 
15193003' 
 
Severe recurrent major depression with psychotic features, mood-incongruent 
(disorder) 
15639000' 
 
Moderate major depression, single episode (disorder) 
18818009' 
 
Moderate recurrent major depression (disorder) 
19527009' 
 
Single episode of major depression in full remission (disorder) 
20250007' 
 
Severe major depression, single episode, with psychotic features, mood-
incongruent (disorder) 
25922000' 
 
Major depressive disorder, single episode with postpartum onset (disorder) 
28475009' 
 
Severe recurrent major depression with psychotic features (disorder) 

 
 
56 
 
30605009' 
 
Major depression in partial remission (disorder) 
33078009' 
 
Severe recurrent major depression with psychotic features, mood-congruent 
(disorder) 
33135002' 
 
Recurrent major depression in partial remission (disorder) 
33736005' 
 
Severe major depression with psychotic features, mood-congruent (disorder) 
35489007' 
 
Depressive disorder (disorder) 
36474008' 
 
Severe recurrent major depression without psychotic features (disorder) 
36923009' 
 
Major depression, single episode (disorder) 
38694004' 
 
Recurrent major depressive disorder with atypical features (disorder) 
39809009' 
 
Recurrent major depressive disorder with catatonic features (disorder) 
40379007' 
 
Mild recurrent major depression (disorder) 
40568001' 
 
Recurrent brief depressive disorder (disorder) 
42925002' 
 
Major depressive disorder, single episode with atypical features (disorder) 
48589009' 
 
Minor depressive disorder (disorder) 
58703003' 
 
Postpartum depression (disorder) 
60099002' 
 
Severe major depression with psychotic features, mood-incongruent (disorder) 
66344007' 
 
Recurrent major depression (disorder) 
69392006' 
 
Major depressive disorder, single episode with catatonic features (disorder) 
70747007' 
 
Major depression single episode, in partial remission (disorder) 
71336009' 
 
Recurrent major depressive disorder with postpartum onset (disorder) 
73867007' 
 
Severe major depression with psychotic features (disorder) 
75084000' 
 
Severe major depression without psychotic features (disorder) 
76441001' 
 
Severe major depression, single episode, without psychotic features (disorder) 
77911002' 
 
Severe major depression, single episode, with psychotic features, mood-
congruent (disorder) 
79298009' 
 
Mild major depression, single episode (disorder) 
79842004' 
 
Stuporous depression (disorder) 

 
 
57 
 
82218004' 
 
Postoperative depression (disorder) 
83458005' 
 
Agitated depression (disorder) 
87414006' 
 
Reactive depression (situational) (disorder) 
87512008' 
 
Mild major depression (disorder) 
161469008' 
 
History of depression (situation) 
191495003' 
 
Drug-induced depressive state (disorder) 
191604000' 
 
Single major depressive episode, severe, with psychosis (disorder) 
191610000' 
 
Recurrent major depressive episodes, mild (disorder) 
191611001' 
 
Recurrent major depressive episodes, moderate (disorder) 
191613003' 
 
Recurrent major depressive episodes, severe, with psychosis (disorder) 
191616006' 
 
Recurrent depression (disorder) 
191659001' 
 
Atypical depressive disorder (disorder) 
191676002' 
 
Reactive depressive psychosis (disorder) 
192046006' 
 
Brief depressive adjustment reaction (disorder) 
192049004' 
 
Prolonged depressive adjustment reaction (disorder) 
192079006' 
 
Postviral depression (disorder) 
192080009' 
 
Chronic depression (disorder) 
231485007' 
 
Post-schizophrenic depression (disorder) 
231499006' 
 
Endogenous depression first episode (disorder) 
231500002' 
 
Masked depression (disorder) 
231504006' 
 
Mixed anxiety and depressive disorder (disorder) 
237349002' 
 
Mild postnatal depression (disorder) 
237350002' 
 
Severe postnatal depression (disorder) 
237739002' 
 
Pseudo-Cushing's syndrome of depression (disorder) 
247803002' 
 
Seasonal affective disorder (disorder) 
268621008' 
 
Recurrent major depressive episodes (disorder) 

 
 
58 
 
272022009' 
 
Complaining of feeling depressed (finding) 
274948002' 
 
Endogenous depression - recurrent (disorder) 
300706003' 
 
Endogenous depression (disorder) 
310495003' 
 
Mild depression (disorder) 
310496002' 
 
Moderate depression (disorder) 
310497006' 
 
Severe depression (disorder) 
319768000' 
 
Recurrent major depressive disorder with melancholic features (disorder) 
320751009' 
 
Major depression, melancholic type (disorder) 
321717001' 
 
Involutional depression (disorder) 
366979004' 
 
Depressed mood (finding) 
370143000' 
 
Major depressive disorder (disorder) 
394924000' 
 
Symptoms of depression (finding) 
395072006' 
 
Counseling for postnatal depression (procedure) 
430852001' 
 
Severe major depression, single episode, with psychotic features (disorder) 
450714000' 
 
Severe major depression (disorder) 
704678007' 
 
Depressed mood with postpartum onset (finding) 
712823008' 
 
Acute depression (disorder) 
718636001' 
 
Minimal depression (disorder) 
719592004' 
 
Moderately severe major depression (disorder) 
719593009' 
 
Moderately severe depression (disorder) 
720451004' 
 
Minimal recurrent major depression (disorder) 
720452006' 
 
Moderately severe recurrent major depression (disorder) 
720453001' 
 
Moderately severe major depression single episode (disorder) 
720454007' 
 
Minimal major depression single episode (disorder) 
720455008' 
 
Minimal major depression (disorder) 
723928009' 
 
Mood disorder with depressive symptoms caused by alcohol (disorder) 

 
 
59 
 
723930006' 
 
Mood disorder with mixed manic and depressive symptoms caused by alcohol 
(disorder) 
724676000' 
 
Mood disorder with depressive symptoms caused by sedative (disorder) 
724677009' 
 
Mood disorder with depressive symptoms caused by hypnotic (disorder) 
724678004' 
 
Mood disorder with depressive symptoms caused by anxiolytic (disorder) 
724690002' 
 
Mood disorder with depressive symptoms caused by cocaine (disorder) 
724757005' 
 
Depressive symptoms due to primary psychotic disorder (disorder) 
726772006' 
 
Major depression with psychotic features (disorder) 
762321000' 
 
Mood disorder with depressive symptoms caused by opioid (disorder) 
762329003' 
 
Mood disorder with depressive symptoms caused by stimulant (disorder) 
762336002' 
 
Mood disorder with depressive symptoms caused by hallucinogen (disorder) 
762339009' 
 
Mood disorder with depressive symptoms caused by volatile inhalant (disorder) 
762512002' 
 
Mood disorder with depressive symptoms caused by synthetic cathinone 
(disorder) 
768835002' 
 
Depression care management (procedure) 
788120007' 
 
Antenatal depression (disorder) 
838529004' 
 
Mood disorder with mixed depressive and manic symptoms caused by 
amfetamine and amfetamine derivative (disorder) 
871840004' 
 
Episode of depression (finding) 
251000119105' 
 
Severe major depression, single episode (disorder) 
281000119103' 
 
Severe recurrent major depression (disorder) 
10211000132109' 
 
Perinatal depression (disorder) 
94631000119100' 
 
Depressive disorder in mother complicating pregnancy (disorder) 
133121000119109' 
 
Severe seasonal affective disorder (disorder) 
199111000000100' 
 
Referral for guided self-help for depression (procedure) 
286711000000107' 
 
Counseling for depression (procedure) 
288751000119101' 
 
Reactive depressive psychosis, single episode (disorder) 

 
 
60 
 
361761000000106' 
 
On full dose long term treatment for depression (finding) 
755321000000106' 
 
Single major depressive episode, severe, with psychosis, psychosis in remission 
(disorder) 
755331000000108' 
 
Recurrent major depressive episodes, severe, with psychosis, psychosis in 
remission (disorder) 
764611000000100' 
 
Recurrent major depressive episodes, severe (disorder) 
764691000000109' 
 
Recurrent major depressive episodes, in partial remission (disorder) 
764701000000109' 
 
Recurrent major depressive episodes, in remission (disorder) 
764711000000106' 
 
Single major depressive episode, in remission (disorder) 
923921000000104' 
 
Referral for depression self-help video (procedure) 
1086471000000100' 
 
Recurrent reactive depressive episodes, severe, with psychosis (disorder) 
1086661000000100' 
 
Reactive depression, prolonged single episode (disorder) 
1086671000000100' 
 
Reactive depression, single episode (disorder) 
1086681000000100' 
 
Reactive depression, recurrent (disorder) 
1086691000000100' 
 
Reactive depression, first episode (disorder) 
1089511000000100' 
 
Recurrent depression with current severe episode and psychotic features 
(disorder) 
1089631000000100' 
 
Recurrent depression with current severe episode without psychotic features 
(disorder) 
1089641000000100' 
 
Recurrent depression with current moderate episode (disorder) 
10811121000119100' 
 
Major depressive disorder in mother complicating childbirth (disorder) 
10811161000119100' 
 
Major depressive disorder in mother complicating pregnancy (disorder) 
10835871000119100' 
 
Depressive disorder in mother complicating childbirth (disorder) 
16238181000119100' 
 
Depressive disorder caused by amphetamine (disorder) 
16238221000119100' 
 
Depressive disorder caused by methamphetamine (disorder) 
16264621000119100' 
 
Recurrent mild major depressive disorder co-occurrent with anxiety (disorder) 
16264821000119100' 
 
Recurrent severe major depressive disorder co-occurrent with anxiety (disorder) 

 
 
61 
 
16264901000119100' 
 
Recurrent moderate major depressive disorder co-occurrent with anxiety 
(disorder) 
16265301000119100' 
 
Recurrent major depressive disorder in partial remission co-occurrent with 
anxiety (disorder) 
16265951000119100' 
 
Mild major depressive disorder co-occurrent with anxiety single episode 
(disorder) 
16266831000119100' 
 
Moderate major depressive disorder co-occurrent with anxiety single episode 
(disorder) 
16266991000119100' 
 
Severe major depressive disorder co-occurrent with anxiety single episode 
(disorder) 
Recurrent depressive disorder 
Read V2 Code 
Term ID 
Description 
E113. 
All 
Recurrent major depressive episode 
E1130 
All 
Recurrent major depressive episodes, unspecified 
E1131 
All 
Recurrent major depressive episodes, mild 
E1132 
All 
Recurrent major depressive episodes, moderate 
E1133 
All 
Recurrent major depressive episodes, severe, without mention of psychosis 
E1134 
All 
Recurrent major depressive episodes, severe, with psychosis 
E1135 
All 
Recurrent major depressive episodes, in partial or unspecified remission 
E1136 
All 
Recurrent major depressive episodes, in full remission 
E1137 
All 
Recurrent depression 
E113z 
All 
Recurrent major depressive episode NOS 
E2B1. 
All 
Chronic depression 
Eu32A 
All 
[X]Recurrent major depressive episodes, severe, with psychosis, psychosis in 
remission 
Eu33. 
All 
[X]Recurrent depressive disorder 
Eu330 
All 
[X]Recurrent depressive disorder, current episode mild 

 
 
62 
 
Eu331 
All 
[X]Recurrent depressive disorder, current episode moderate 
Eu332 
All 
[X]Recurrent depressive disorder, current episode severe without psychotic 
symptoms 
Eu333 
All 
[X]Recurrent depressive disorder, current episode severe with psychotic 
symptoms 
Eu334 
All 
[X]Recurrent depressive disorder, currently in remission 
Eu33y 
All 
[X]Other recurrent depressive disorders 
Eu33z 
All 
[X]Recurrent depressive disorder, unspecified 
Read CTV3 Code 
Term ID 
Description 
Xa0wV 
All 
Recurrent brief depressive disorder 
XM1GC 
All 
Endogenous depression - recurrent 
E1130 
All 
Recurrent major depressive episodes, unspecified 
E1131 
All 
Recurrent major depressive episodes, mild 
E1132 
All 
Recurrent major depressive episodes, moderate 
E1133 
All 
Recurrent major depressive episodes, severe, without mention of psychosis 
E1134 
All 
Recurrent major depressive episodes, severe, with psychosis 
XaX54 
All 
Recurrent major depressive episodes, severe, with psychosis, psychosis in 
remission 
E1135 
All 
Recurrent major depressive episodes, in partial or unspecified remission 
E1136 
All 
Recurrent major depressive episodes, in full remission 
E113z 
All 
Recurrent major depressive episode NOS 
E1137 
All 
Recurrent depression 
E2B1. 
All 
Chronic depression 
Eu331 
All 
[X]Recurrent depressive disorder, current episode moderate 
XE1Y1 
All 
Recurrent major depressive episodes 
XE1Zd 
All 
[X]Recurrent depressive disorder, current episode severe without psychotic 
symptoms 

 
 
63 
 
XE1Ze 
All 
[X]Recurrent depressive disorder, current episode severe with psychotic 
symptoms 
XE1Zf 
All 
[X]Recurrent depressive disorder, unspecified 
SNOMED Code 
Term ID 
Description 
15193003' 
 
Severe recurrent major depression with psychotic features, mood-incongruent 
(disorder) 
16264621000119100' 
 
Recurrent mild major depressive disorder co-occurrent with anxiety (disorder) 
16264821000119100' 
 
Recurrent severe major depressive disorder co-occurrent with anxiety (disorder) 
16264901000119100' 
 
Recurrent moderate major depressive disorder co-occurrent with anxiety 
(disorder) 
16265061000119100' 
 
Recurrent major depressive disorder co-occurrent with anxiety in full remission 
(disorder) 
16265301000119100' 
 
Recurrent major depressive disorder in partial remission co-occurrent with 
anxiety (disorder) 
18818009' 
 
Moderate recurrent major depression (disorder) 
191610000' 
 
Recurrent major depressive episodes, mild (disorder) 
191611001' 
 
Recurrent major depressive episodes, moderate (disorder) 
191613003' 
 
Recurrent major depressive episodes, severe, with psychosis (disorder) 
2618002' 
 
Chronic recurrent major depressive disorder (disorder) 
268621008' 
 
Recurrent major depressive episodes (disorder) 
274948002' 
 
Endogenous depression - recurrent (disorder) 
281000119103' 
 
Severe recurrent major depression (disorder) 
28475009' 
 
Severe recurrent major depression with psychotic features (disorder) 
319768000' 
 
Recurrent major depressive disorder with melancholic features (disorder) 
33078009' 
 
Severe recurrent major depression with psychotic features, mood-congruent 
(disorder) 
33135002' 
 
Recurrent major depression in partial remission (disorder) 

 
 
64 
 
36474008' 
 
Severe recurrent major depression without psychotic features (disorder) 
38694004' 
 
Recurrent major depressive disorder with atypical features (disorder) 
39809009' 
 
Recurrent major depressive disorder with catatonic features (disorder) 
40379007' 
 
Mild recurrent major depression (disorder) 
66344007' 
 
Recurrent major depression (disorder) 
68019004' 
 
Recurrent major depression in remission (disorder) 
71336009' 
 
Recurrent major depressive disorder with postpartum onset (disorder) 
720451004' 
 
Minimal recurrent major depression (disorder) 
720452006' 
 
Moderately severe recurrent major depression (disorder) 
755331000000108' 
 
Recurrent major depressive episodes, severe, with psychosis, psychosis in 
remission (disorder) 
764611000000100' 
 
Recurrent major depressive episodes, severe (disorder) 
764691000000109' 
 
Recurrent major depressive episodes, in partial remission (disorder) 
764701000000109' 
 
Recurrent major depressive episodes, in remission (disorder) 
Depressive symptoms 
Read V2 Code 
Term ID 
Description 
1B17. 
All 
Depressed 
1B1U. 
All 
Symptoms of depression 
1BQ.. 
All 
Loss of capacity for enjoyment 
1BT.. 
All 
Depressed mood 
1BU.. 
All 
Loss of hope for the future 
2257 
All 
O/E - depressed 
Read CTV3 Code 
Term ID 
Description 
XE0re 
All 
Depressed mood 
XaImU 
All 
Symptoms of depression 
X761E 
All 
Loss of capacity for enjoyment 

 
 
65 
 
X761G 
All 
Loss of hope for the future 
Xa3Xh 
All 
Feeling of hopelessness 
2257.' 
All 
O/E - depressed 
XM0CR 
All 
C/O - feeling depressed 
X00SO 
All 
Depressed 
XaAyM 
All 
Feeling hopeless 
SNOMED Code 
Term ID 
Description 
162722001' 
 
On examination - depressed (disorder) 
366979004' 
 
Depressed mood (finding) 
272022009' 
 
Complaining of feeling depressed (finding) 
307077003' 
 
Feeling hopeless (finding) 
1074741000000100' 
 
Unable to be hopeful for future (finding) 
1069851000000100' 
 
 Difficulty being hopeful for future (finding) 
28669007' 
 
Anhedonia (finding) 
309838005' 
 
Emotional upset (finding) 
225014007' 
 
Feeling empty (finding) 
225457007' 
 
Feeling suicidal (finding) 
247796005' 
 
Loss of capacity for enjoyment (finding) 
430641005' 
 
Markedly diminished pleasure (finding) 
310480000' 
 
Complaining of tearfulness (finding) 
17029006' 
 
Feeling despair (finding) 
735640004' 
 
Excessive crying of adult (finding) 
271951008' 
 
Crying associated with mood (finding) 
394924000' 
 
Symptoms of depression (finding) 
Parasuicide 
Read V2 Code 
Term ID 
Description 

 
 
66 
 
U21.. 
All 
[X]Intent self harm by hanging, strangulation/suffocation 
U210. 
All 
[X]Int self harm by hanging, strangulation/suffocation occ home 
U211. 
All 
[X]Intent self harm by hanging, strangulation/suffocation at res institut 
U212. 
All 
[X]Int self harm by hanging, strangulation/suffocation in school/pub admin area 
U213. 
All 
[X]Intent self harm by hanging, strangulation/suffocation in sport/athletic area 
U214. 
All 
[X]Int self harm by hanging, strangulation/suffocation in street/highway 
U215. 
All 
[X]Intent self harm by hanging, strangulation/suffocation trade/service area 
U216. 
All 
[X]Int self harm by hanging, strangulation/suffocation indust/construct area 
U217. 
All 
[X]Int self harm by hanging, strangulation/suffocation occ farm 
U21y. 
All 
[X]Int self harm by hanging, strangulation/suffocation other spec place 
U21z. 
All 
[X]Intent self harm by hanging, strangulation/suffocation unspecif place 
U22.. 
All 
[X]Intent self harm by drowning and submersion 
U220. 
All 
[X]Int self harm by drowning and submersion occ home 
U221. 
All 
[X]Intent self harm by drowning and submersion at res institut 
U222. 
All 
[X]Int self harm by drowning and submersion in school/pub admin area 
U223. 
All 
[X]Intent self harm by drowning and submersion in sport/athletic area 
U224. 
All 
[X]Int self harm by drowning and submersion in street/highway 
U225. 
All 
[X]Intent self harm by drowning and submersion trade/service area 
U226. 
All 
[X]Int self harm by drowning and submersion indust/construct area 
U227. 
All 
[X]Int self harm by drowning and submersion occ farm 
U22y. 
All 
[X]Int self harm by drowning and submersion other spec place 
U22z. 
All 
[X]Intent self harm by drowning and submersion unspecif place 
U23.. 
All 
[X]Intent self harm by handgun discharge 
U230. 
All 
[X]Int self harm by handgun discharge occ home 
U231. 
All 
[X]Intent self harm by handgun discharge at res institut 
U232. 
All 
[X]Int self harm by handgun discharge in school/pub admin area 

 
 
67 
 
U233. 
All 
[X]Intent self harm by handgun discharge in sport/athletic area 
U234. 
All 
[X]Int self harm by handgun discharge in street/highway 
U235. 
All 
[X]Intent self harm by handgun discharge trade/service area 
U236. 
All 
[X]Int self harm by handgun discharge indust/construct area 
U237. 
All 
[X]Int self harm by handgun discharge occ farm 
U23y. 
All 
[X]Int self harm by handgun discharge other spec place 
U23z. 
All 
[X]Intent self harm by handgun discharge unspecif place 
U24.. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge 
U240. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at home 
U241. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
in residential institution 
U242. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at school, other institution and public administrative area 
U243. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at sports and athletics area 
U244. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
on street and highway 
U245. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at trade and service area 
U246. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at industrial and construction area 
U247. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
on farm 
U24y. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at other specified place 
U24z. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at unspecified place 

 
 
68 
 
U25.. 
All 
[X]Intentional self harm by other and unspecified firearm discharge 
U250. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at home 
U251. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
in residential institution 
U252. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at school, other institution and public administrative area 
U253. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at sports and athletics area 
U254. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
on street and highway 
U255. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at trade and service area 
U256. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at industrial and construction area 
U257. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
on farm 
U25y. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at other specified place 
U25z. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at unspecified place 
2... 
All 
[X]Suicide 
TK... 
All 
Attempted suicide 
TK0.. 
All 
Suicide and selfinflicted poisoning by solid and liquid substances 
TK00. 
All 
Suicide and selfinflicted poisoning by analgesics, antipyretics and anti-rheumatics 
TK01. 
All 
Suicide + selfinflicted poisoning by barbiturates 
TK010 
All 
Suicide and self inflicted injury by Amylobarbitone 
TK011 
All 
Suicide and self inflicted injury by Barbitone 

 
 
69 
 
TK012 
All 
Suicide and self inflicted injury by Butabarbitone 
TK013 
All 
Suicide and self inflicted injury by Pentabarbitone 
TK014 
All 
Suicide and self inflicted injury by Phenobarbitone 
TK015 
All 
Suicide and self inflicted injury by Quinalbarbitone 
TK01z 
All 
Suicide and self inflicted injury by barbiturates 
TK02. 
All 
Suicide and selfinflicted poisoning by other sedatives and hypnotics 
TK03. 
All 
Suicide and selfinflicted poisoning by tranquillisers and other psychotropic 
agents 
TK04. 
All 
Suicide and selfinflicted poisoning by other drugs and medicines 
TK05. 
All 
Suicide + selfinflicted poisoning by drug or medicine NOS 
TK06. 
All 
Suicide and selfinflicted poisoning by agricultural and horticultural chemical and 
pharmaceutical preparations other than plant foods and fertilizers 
TK07. 
All 
Suicide and selfinflicted poisoning by corrosive and caustic substances 
TK08. 
All 
Suicide and selfinflicted poisoning by arsenic and its compounds 
TK0z. 
All 
Suicide and selfinflicted poisoning by solid and liquid substances NOS 
TK1.. 
All 
Suicide + selfinflicted poisoning by gases in domestic use 
TK10. 
All 
Suicide and selfinflicted poisoning by gas distributed by pipeline 
TK11. 
All 
Suicide and selfinflicted poisoning by liquefied petroleum gas distributed in 
mobile containers 
TK1y. 
All 
Suicide and selfinflicted poisoning by other utility gas 
TK1z. 
All 
Suicide and selfinflicted poisoning by gases in domestic use NOS 
TK2.. 
All 
Suicide and selfinflicted poisoning by other gases and vapours 
TK20. 
All 
Suicide and selfinflicted poisoning by motor vehicle exhaust gas 
TK21. 
All 
Suicide and selfinflicted poisoning by other carbon monoxide 
TK2y. 
All 
Suicide and selfinflicted poisoning by other gases and vapours 
TK2z. 
All 
Suicide + selfinflicted poisoning by gases and vapours NOS 
TK3.. 
All 
Suicide and selfinflicted injury by hanging, strangulation and suffocation 

 
 
70 
 
TK31. 
All 
Suicide and selfinflicted injury by suffocation by plastic bag 
TK3y. 
All 
Suicide and selfinflicted injury by other means of hanging, strangulation and 
suffocation 
TK3z. 
All 
Suicide and selfinflicted injury by hanging, strangulation and suffocation NOS 
TK4.. 
All 
Suicide and selfinflicted injury by drowning 
TK5.. 
All 
Suicide and selfinflicted injury by firearms and explosives 
TK50. 
All 
Suicide and selfinflicted injury by handgun 
TK51. 
All 
Suicide and selfinflicted injury by shotgun 
TK52. 
All 
Suicide and selfinflicted injury by hunting rifle 
TK53. 
All 
Suicide and selfinflicted injury by military firearms 
TK54. 
All 
Suicide and selfinflicted injury by other firearm 
TK55. 
All 
Suicide and selfinflicted injury by explosives 
TK5z. 
All 
Suicide and selfinflicted injury by firearms and explosives NOS 
TK6.. 
All 
Suicide and selfinflicted injury by cutting and stabbing instruments 
TK60. 
All 
Suicide and selfinflicted injury by cutting 
TK61. 
All 
Suicide and selfinflicted injury by stabbing 
TK6z. 
All 
Suicide and selfinflicted injury by cutting and stabbing instruments NOS 
TK7.. 
All 
Suicide and selfinflicted injury by jumping from high place 
TK70. 
All 
Suicide and selfinflicted injury by jumping from residential premises 
TK71. 
All 
Suicide and selfinflicted injury by jumping from other manmade structure 
TK72. 
All 
Suicide and selfinflicted injury by jumping from natural sites 
TK72. 
All 
Suicide and selfinflicted injury by jumping from natural sites 
TK7z. 
All 
Suicide and selfinflicted injury by jumping from high place NOS 
TKx.. 
All 
Suicide and selfinflicted injury by other means 
TKx0. 
All 
Suicide and selfinflicted injury by jumping or lying before moving object 
TKx01 
All 
Suicide and selfinflicted injury by lying before moving object 

 
 
71 
 
TKx0z 
All 
Suicide and selfinflicted injury by jumping or lying before moving object NOS 
TKx1. 
All 
Suicide and selfinflicted injury by burns or fire 
TKx2. 
All 
Suicide and selfinflicted injury by scald 
TKx3. 
All 
Suicide and selfinflicted injury by extremes of cold 
TKx4. 
All 
Suicide and selfinflicted injury by electrocution 
TKx5. 
All 
Suicide and selfinflicted injury by crashing of motor vehicle 
TKx6. 
All 
Suicide and selfinflicted injury by crashing of aircraft 
TKx7. 
All 
Suicide and selfinflicted injury by caustic substances, except poisoning 
TKxy. 
All 
Suicide and selfinflicted injury by other specified means 
TKxz. 
All 
Suicide and selfinflicted injury by other means NOS 
TKz.. 
All 
Suicide and selfinflicted injury NOS 
Read CTV3 Code 
Term ID 
Description 
Xa04L 
All 
Parasuicide 
Xa3jI 
All 
Attempted suicide NOS 
146A. 
All 
H/O: attempted suicide 
XM1Fs 
All 
Self hanging, strangulation or suffocation 
TK3.. 
All 
Suicide and selfinflicted injury by hanging, strangulation and suffocation 
TK30. 
All 
Suicide or attempted suicide by hanging 
Xa3jC 
All 
Attempted suicide - hanging 
Xa3jL 
All 
Suicide - hanging 
TK3y. 
All 
Suicide and selfinflicted injury by other means of hanging, strangulation and 
suffocation 
TK3z. 
All 
Suicide and selfinflicted injury by hanging, strangulation and suffocation NOS 
XE22I 
All 
Suicide and selfinflicted injury by suffocation by plastic bag 
Xa3jD 
All 
Attempted suicide - suffocation 
Xa3jM 
All 
Suicide - suffocation 

 
 
72 
 
TK0.. 
All 
Suicide and selfinflicted poisoning by solid and liquid substances 
TK0z. 
All 
Suicide and selfinflicted poisoning by solid and liquid substances NOS 
TK4.. 
All 
Suicide and selfinflicted injury by drowning 
TK5.. 
All 
Suicide or selfinflicted injury by firearms and explosives 
TK50. 
All 
Suicide or selfinflicted injury by handgun 
TK51. 
All 
Suicide or selfinflicted injury by shotgun 
TK52. 
All 
Suicide or selfinflicted injury by hunting rifle 
TK53. 
All 
Suicide or selfinflicted injury by military firearm 
TK54. 
All 
Suicide and selfinflicted injury by other firearm 
TK55. 
All 
Suicide or selfinflicted injury by explosives 
TK5z. 
All 
Suicide and selfinflicted injury by firearms and explosives NOS 
Xa3jF 
All 
Attempted suicide - firearms 
Xa3jO 
All 
Suicide - firearms 
TK6.. 
All 
Suicide or selfinflicted injury by cutting and stabbing 
TK60. 
All 
Suicide or selfinflicted injury by cutting 
TK61. 
All 
Suicide or selfinflicted injury by stabbing 
TK6z. 
All 
Suicide and selfinflicted injury by cutting and stabbing instruments NOS 
Xa3jG 
All 
Attempted suicide - cut/stab 
Xa3jP 
All 
Suicide - cut/stab 
TK7.. 
All 
Suicide or self injury by jumping from a height 
TK70. 
All 
Suicide and selfinflicted injury by jumping from residential premises 
TK71. 
All 
Suicide and selfinflicted injury by jumping from other man-made structure 
TK72. 
All 
Suicide and selfinflicted injury by jumping from natural sites 
TK72. 
All 
Suicide and selfinflicted injury by jumping from natural sites 
TK7z. 
All 
Suicide and selfinflicted injury by jumping from high place NOS 
X71B6 
All 
Suicide or self injury by jumping from high man-made structure 

 
 
73 
 
X71B7 
All 
Suicide or self injury by jumping from high building 
X71B8 
All 
Suicide or self injury by jumping from bridge 
X71B9 
All 
Suicide or self injury by jumping from high natural feature 
X71BA 
All 
Suicide or self injury by jumping off cliff 
Xa3jH 
All 
Attempted suicide - jumping from a high place 
Xa3jQ 
All 
Suicide - jumping from a high place 
TKx.. 
All 
Suicide and selfinflicted injury by other means 
TKx0. 
All 
Suicide and selfinflicted injury by jumping or lying before moving object 
TKx00 
All 
Suicide and selfinflicted injury by jumping before moving object 
TKx01 
All 
Suicide and selfinflicted injury by lying before moving object 
TKx0z 
All 
Suicide and selfinflicted injury by jumping or lying before moving object NOS 
TKxy. 
All 
Suicide and selfinflicted injury by other specified means 
TKxz. 
All 
Suicide and selfinflicted injury by other means NOS 
TKx1. 
All 
Suicide or self injury by burning or fire 
TKx2. 
All 
Suicide or self injury by scalding 
X71BF 
All 
Suicide or self injury by igniting petrol soaked clothing 
X71BG 
All 
Suicide or self injury by arson 
TKx3. 
All 
Suicide or self injury by exposure to cold 
TKx4. 
All 
Suicide or self injury by electric current 
TKx7. 
All 
Suicide and selfinflicted injury by caustic substances, excluding poisoning 
TKz.. 
All 
Suicide and selfinflicted injury NOS 
Xa3jI 
All 
Attempted suicide NOS 
Xa3jR 
All 
Suicide NOS 
X71B3 
All 
Self poisoning by gas 
TK1.. 
All 
Suicide and selfinflicted poisoning by gases in domestic use 
TK21. 
All 
Suicide and selfinflicted poisoning by other carbon monoxide 

 
 
74 
 
TK2y. 
All 
Suicide and selfinflicted poisoning by other gases and vapours 
TK2z. 
All 
Suicide and selfinflicted poisoning by gases and vapours NOS 
X71B4 
All 
Self poisoning by carbon monoxide 
TK20. 
All 
Self poisoning by motor vehicle exhaust gas 
X71B5 
All 
Self poisoning by coal gas 
X71BB 
All 
Suicide or self injury associated with moving vehicles 
TKx5. 
All 
Suicide or selfinflicted injury by crashing motor vehicle 
TKx6. 
All 
Suicide or selfinflicted injury by crashing of aircraft 
X71BC 
All 
Suicide or self injury by placing self in path of moving vehicle 
X71BD 
All 
Suicide or self injury by placing self in path of moving motor vehicle 
X71BE 
All 
Suicide or self injury by placing self in path of moving railway vehicle 
XE22J 
All 
Suicide or attempted suicide by drowning 
Xa3jE 
All 
Attempted suicide - drowning 
Xa3jN 
All 
Suicide - drowning 
XM1Fs 
All 
Self hanging, strangulation or suffocation 
TK3.. 
All 
Suicide and selfinflicted injury by hanging, strangulation and suffocation 
TK30. 
All 
Suicide or attempted suicide by hanging 
Xa3jL 
All 
Suicide - hanging 
TK3y. 
All 
Suicide and selfinflicted injury by other means of hanging, strangulation and 
suffocation 
TK3z. 
All 
Suicide and selfinflicted injury by hanging, strangulation and suffocation NOS 
XE22I 
All 
Suicide and selfinflicted injury by suffocation by plastic bag 
Xa3jD 
All 
Attempted suicide - suffocation 
Xa3jM 
All 
Suicide - suffocation 
TK50. 
All 
Suicide or selfinflicted injury by handgun 
Ua1AA 
All 
Hanging self 

 
 
75 
 
Ua1AB 
All 
Drowning self 
Ua1A9 
All 
Jumping from height 
Ua1A8 
All 
Jumping from building 
Ua1A7 
All 
Jumping from bridge 
Ua14U 
All 
Jumping from cliff 
Ua1AE 
All 
Self-asphyxiation 
Ua1AD 
All 
Self-strangulation 
Ua1AC 
All 
Self-suffocation 
Ua14S 
All 
Throwing self in front of vehicle 
Ua14T 
All 
Throwing self in front of train 
X71B0 
All 
Self poisoning by non-drug solid or liquid agents 
TK07. 
All 
Self poisoning by corrosive or caustic substance 
TK08. 
All 
Self poisoning by arsenic or its compounds 
X71B2 
All 
Self poisoning by plants or parts of plants 
XM1FX 
All 
Self poisoning by agricultural chemical 
TK06. 
All 
Suicide and selfinflicted poisoning by agricultural and horticultural chemical and 
pharmaceutical preparations other than plant foods and fertilizers 
X71B1 
All 
Self poisoning by paraquat 
Ua14R 
All 
Shooting self 
Xa2pL 
All 
Stabbing self 
U21.. 
All 
[X]Intent self harm by hanging, strangulation/suffocation 
U210. 
All 
[X]Int self harm by hanging, strangulation/suffocation occ home 
U211. 
All 
[X]Intent self harm by hanging, strangulation/suffocation at res institut 
U212. 
All 
[X]Int self harm by hanging, strangulation/suffocation in school/pub admin area 
U213. 
All 
[X]Intent self harm by hanging, strangulation/suffocation in sport/athletic area 
U214. 
All 
[X]Int self harm by hanging, strangulation/suffocation in street/highway 

 
 
76 
 
U215. 
All 
[X]Intent self harm by hanging, strangulation/suffocation trade/service area 
U216. 
All 
[X]Int self harm by hanging, strangulation/suffocation indust/construct area 
U217. 
All 
[X]Int self harm by hanging, strangulation/suffocation occ farm 
U21y. 
All 
[X]Int self harm by hanging, strangulation/suffocation other spec place 
U21z. 
All 
[X]Intent self harm by hanging, strangulation/suffocation unspecif place 
U22.. 
All 
[X]Intent self harm by drowning and submersion 
U220. 
All 
[X]Int self harm by drowning and submersion occ home 
U221. 
All 
[X]Intent self harm by drowning and submersion at res institut 
U222. 
All 
[X]Int self harm by drowning and submersion in school/pub admin area 
U223. 
All 
[X]Intent self harm by drowning and submersion in sport/athletic area 
U224. 
All 
[X]Int self harm by drowning and submersion in street/highway 
U225. 
All 
[X]Intent self harm by drowning and submersion trade/service area 
U226. 
All 
[X]Int self harm by drowning and submersion indust/construct area 
U227. 
All 
[X]Int self harm by drowning and submersion occ farm 
U22y. 
All 
[X]Int self harm by drowning and submersion other spec place 
U22z. 
All 
[X]Intent self harm by drowning and submersion unspecif place 
U23.. 
All 
[X]Intent self harm by handgun discharge 
U230. 
All 
[X]Int self harm by handgun discharge occ home 
U231. 
All 
[X]Intent self harm by handgun discharge at res institut 
U232. 
All 
[X]Int self harm by handgun discharge in school/pub admin area 
U233. 
All 
[X]Intent self harm by handgun discharge in sport/athletic area 
U234. 
All 
[X]Int self harm by handgun discharge in street/highway 
U235. 
All 
[X]Intent self harm by handgun discharge trade/service area 
U236. 
All 
[X]Int self harm by handgun discharge indust/construct area 
U237. 
All 
[X]Int self harm by handgun discharge occ farm 
U23y. 
All 
[X]Int self harm by handgun discharge other spec place 

 
 
77 
 
U23z. 
All 
[X]Intent self harm by handgun discharge unspecif place 
U24.. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge 
U240. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at home 
U241. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
in residential institution 
U242. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at school, other institution and public administrative area 
U243. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at sports and athletics area 
U244. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
on street and highway 
U245. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at trade and service area 
U246. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at industrial and construction area 
U247. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
on farm 
U24y. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at other specified place 
U24z. 
All 
[X]Intentional self harm by rifle, shotgun and larger firearm discharge, occurrence 
at unspecified place 
U25.. 
All 
[X]Intentional self harm by other and unspecified firearm discharge 
U250. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at home 
U251. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
in residential institution 

 
 
78 
 
U252. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at school, other institution and public administrative area 
U253. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at sports and athletics area 
U254. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
on street and highway 
U255. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at trade and service area 
U256. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at industrial and construction area 
U257. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
on farm 
U25y. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at other specified place 
U25z. 
All 
[X]Intentional self harm by other and unspecified firearm discharge, occurrence 
at unspecified place 
SNOMED Code 
Term ID 
Description 
225048008 
 
Jumping from height (finding) 
225046007 
 
Jumping from bridge (finding) 
225047003 
 
Jumping from building (finding) 
224950008 
 
Jumping from cliff (finding) 
224949008 
 
Throwing self in front of train (finding) 
224948000 
 
Throwing self in front of vehicle (finding) 
225049000 
 
Hanging self (finding) 
428422006 
 
Found hanging self (finding) 
161474000 
 
History of attempted suicide (situation) 
82313006 
 
Suicide attempt (event) 

 
 
79 
 
269808005 
 
Attempt suicide - car exhaust (event) 
288311002 
 
Attempt suicide - domestic gas (event) 
287185009 
 
Attempted suicide - cut/stab (event) 
287183002 
 
Attempted suicide - drowning (event) 
287184008 
 
Attempted suicide - firearms (event) 
287181000 
 
Attempted suicide - hanging (event) 
287186005 
 
Attempted suicide - jumping from a high place (event) 
287182007 
 
Attempted suicide - suffocation (event) 
36153001 
 
First known suicide attempt (event) 
23233009 
 
Previous known suicide attempt (event) 
53846008 
 
Suicide attempt by adequate means (event) 
55554002 
 
Suicide attempt by inadequate means (event) 
219110007 
 
Suicide and self inflicted injury by amylobarbitone (navigational concept) 
269725004 
 
Suicide and selfinflicted injury (navigational concept) 
219141008 
 
Suicide and selfinflicted injury by drowning (navigational concept) 
219111006 
 
Suicide and self inflicted injury by Barbitone (navigational concept) 
219115002 
 
Suicide and self inflicted injury by Quinalbarbitone (navigational concept) 
219116001 
 
Suicide and self inflicted injury by barbiturates (navigational concept) 
219112004 
 
Suicide and self inflicted injury by Butabarbitone (navigational concept) 
219114003 
 
Suicide and self inflicted injury by phenobarbitone (navigational concept) 
219113009 
 
Suicide and self inflicted injury by Pentabarbitone (navigational concept) 
219150005 
 
Suicide or selfinflicted injury by cutting and stabbing (navigational concept) 
219142001 
 
Suicide or selfinflicted injury by firearms and explosives (navigational concept) 
219125007 
 
Suicide and selfinflicted poisoning by gases in domestic use (disorder) 
219126008 
 
Suicide and selfinflicted poisoning by gas distributed by pipeline (disorder) 

 
 
80 
 
219127004 
 
Suicide and selfinflicted poisoning by liquefied petroleum gas distributed in 
mobile containers (disorder) 
269726003 
 
Suicide and selfinflicted injury by suffocation by plastic bag (navigational 
concept) 
219158003 
 
Suicide and selfinflicted injury by jumping from natural sites (navigational 
concept) 
219163004 
 
Suicide and selfinflicted injury by lying before moving object (navigational 
concept) 
219162009 
 
Suicide and selfinflicted injury by jumping before moving object (navigational 
concept) 
219156004 
 
Suicide and selfinflicted injury by jumping from residential premises 
(navigational concept) 
219161002 
 
Suicide and selfinflicted injury by jumping or lying before moving object 
(navigational concept) 
219171000 
 
Suicide and selfinflicted injury by caustic substances, excluding poisoning 
(navigational concept) 
219108005 
 
Suicide and selfinflicted poisoning by analgesics, antipyretics and anti-rheumatics 
(navigational concept) 
219107000 
 
Suicide and selfinflicted poisoning by solid and liquid substances (navigational 
concept) 
219136000 
 
Suicide and selfinflicted injury by hanging, strangulation and suffocation 
(navigational concept) 
370908002 
 
Patient suicide, or attempted suicide resulting in serious disability, while being 
cared for in a healthcare facility (event) 
271982007 
 
Intentional self poisoning (disorder) 
363293009 
 
Self-administered poisoning (disorder) 
242839001 
 
Self poisoning by gas (disorder) 
242840004 
 
Self poisoning caused by carbon monoxide (disorder) 

 
 
81 
 
242841000 
 
Self poisoning caused by coal gas (disorder) 
219131005 
 
Self poisoning caused by motor vehicle exhaust gas (disorder) 
242836008 
 
Self poisoning by non-drug solid or liquid agents (disorder) 
274912004 
 
Self poisoning by agricultural chemical (disorder) 
219122005 
 
Self poisoning by corrosive or caustic substance (disorder) 
242837004 
 
Self poisoning by paraquat (disorder) 
242838009 
 
Self poisoning by plants or parts of plants (disorder) 
219123000 
 
Self poisoning caused by arsenic or its compounds (disorder) 
284744004 
 
Burning self (finding) 
307578000 
 
Cutting own wrists (finding) 
225045006 
 
Cutting own throat (finding) 
224947005 
 
Shooting self (finding) 
284759005 
 
Stabbing self (finding) 
219166007 
 
Suicide or self injury by scalding (navigational concept) 
225050000 
 
Drowning self (finding) 
219333004 
 
Drowning or immersion of unknown intent (event) 
418765005 
 
Exposure to potentially harmful entity, undetermined intent (event) 
219328003 
 
Hanging, strangulation or suffocation of unknown intent (event) 
219329006 
 
Hanging of unknown intent (event) 
219330001 
 
Suffocation of unknown intent by plastic bag (event) 
219342006 
 
Injury of unknown intent by sharp instrument (disorder) 
Absence from school 
Read V2 Code 
Term ID 
Description 
E2C10 
All 
School refusal 
E2D2z 
All 
School refusal 
13Z4J 
All 
School attendance poor 

 
 
82 
 
Eu912 
All 
[X]Truancy from school 
E2C10 
All 
Unsocial childhood truancy 
E2C20 
All 
Socialised childhood truancy 
Read CTV3 Code 
Term ID 
Description 
X766A 
All 
School refusal 
13Z4J 
All 
School attendance poor 
X7667 
All 
Intentional non-attendance at school 
13Z4G 
All 
Left school free will 
X7669 
All 
Parental withholding from school 
X7668 
All 
Truancy 
XE1Yt 
All 
Unsocial childhood truancy 
E2C20 
All 
Socialised childhood truancy 
SNOMED Code 
Term ID 
Description 
248050007 
 
Intentional non-attendance at school (finding) 
248052004 
 
School refusal (finding) 
105479008 
 
Truancy (finding) 
248051006 
 
Parental withholding from school (finding) 
161131005 
 
Left school free will (finding) 
161133008 
 
School attendance poor (finding) 
440680000 
 
Unable to attend school due to illness (finding) 
31492004 
 
Fear of school (finding) 
271947006 
 
School phobia (finding) 
Unemployment 
Read V2 Code 
Term ID 
Description 
13J7. 
All 
Unemployed 
13J70 
All 
Recently unemployed 

 
 
83 
 
13J71 
All 
Chronic unemployment   
ZV620 
All 
[V]Unemployment 
13R.. 
All 
Unemployment benefits 
13R1. 
All 
Unemployment benefit 
13R2. 
All 
Redundancy payment 
13RZ. 
All 
Unemployment benefit NOS 
13JX. 
All 
Time off work 
13JG. 
All 
Voluntarily redundant 
13J3. 
All 
Loss of job 
13J30 
All 
Sacked from work 
13J8. 
All 
Redundant 
13JJ. 
All 
Unfit for work 
13JJ0 
All 
Benefit agency reports unfit for work 
13JJ1 
All 
Benefit agency reports unfit for work but fit note no longer required 
13Jk. 
All 
Not in employment, education or training 
9DG4. 
All 
IB 113 DLS incapacity for work form paid 
9DG2. 
All 
IB 113 DLS incapacity for work form sent 
9DG3. 
All 
IB 113 DLS incapacity for work form received 
9DG1. 
All 
IB 113 DLS incapacity for work form completed 
9DQ3. 
All 
ESA113 form paid 
9DQ1. 
All 
ESA113 form sent  
9DQ2. 
All 
ESA113 form received 
9DQ0. 
All 
ESA113 form completed 
13OD. 
All 
Employment and support allowance 
Read CTV3 Code 
Term ID 
Description 
13J7. 
All 
Unemployed 

 
 
84 
 
13J70 
All 
Recently unemployed 
13J71 
All 
Chronic unemployment   
ZV620 
All 
[V]Unemployment 
XaPhf 
All 
Benefit agency reports unfit for work 
Xabd4 
All 
Benefit agency reports unfit for work but fit note no longer required 
13J8. 
All 
Redundant  
13JG. 
All 
Voluntarily redundant  
Ua2BD 
All 
Unfit to return to work 
Ua2BE 
All 
Physically unfit for work  
U12BF 
All 
Mentally unfit for work  
13JX. 
All 
Time off work 
XaZHu 
All 
ESA113 form paid 
XaZHt 
All 
ESA113 form sent  
XaZHs 
All 
ESA113 form received 
XaZHj 
All 
ESA113 form completed 
XaBhC 
All 
Employment and support allowance 
XacJr 
All 
Not in employment, education or training 
XE0pT 
All 
Loss of job 
Ua0V9 
All 
Dismissed from job 
Ua0VA 
All 
Unfair dismissal from job 
XaClW 
All 
IB 113 DLS incapacity for work form paid 
XaCIU 
All 
IB 113 DLS incapacity for work form sent 
XaCIV 
All 
IB 113 DLS incapacity for work form received 
XaCIT 
All 
IB 113 DLS incapacity for work form completed 
13JJ. 
All 
Unfit for work 
13J6. 
All 
Medically retired 

 
 
85 
 
SNOMED Code 
Term ID 
Description 
266956001 
 
Loss of job (finding) 
105496009 
 
Dismissed from job (finding) 
160901009 
 
Made redundant (finding) 
73438004 
 
Unemployed (finding) 
160900005 
 
Chronic unemployment (finding) 
160899000 
 
Recently unemployed (finding) 
354581000000101' 
 
Unemployed person (person) 
719401000000102' 
 
Unemployed person (qualifier value) 
224474004 
 
Unfair dismissal from job (finding) 
105498005 
 
Voluntarily redundant (finding) 
723481000000104' 
 
Youth unemployment (qualifier value) 
161005005 
 
Unemployment benefits (qualifier value) 
161006006 
 
Unemployment benefit (qualifier value) 
723971000000106' 
 
Long term unemployment (qualifier value) 
313083007 
 
Unemployment counseling (procedure) 
313084001 
 
Redundancy counseling (procedure) 
281559009 
 
Number of days off work (observable entity) 
160928004 
 
Amount of time off work (observable entity) 
439907006 
 
Number of sick days off work in last month (observable entity) 
105495008 
 
Forced retirement, life event (finding) 
925481000000108' 
 
Benefits agency reports unfit for work but fit note no longer needed (finding) 
161007002 
 
Redundancy payment (qualifier value) 
160910001 
 
Unfit for work (finding) 
374171000000109' 
 
Benefits agency reports unfit for work (finding) 
304248001 
 
Unfit for particular post (finding) 

 
 
86 
 
225888002 
 
Unfit to return to work (finding) 
225890001 
 
Mentally unfit to return to work (finding) 
225889005 
 
Physically unfit to return to work (finding) 
224384002 
 
Registered with job center (finding) 
224385001 
 
Registered with work placement officer (finding) 
14121000000104' 
 
IB113 DLS Incapacity for work form sent (finding) 
14141000000106' 
 
IB113 DLS Incapacity for work form paid (finding) 
14131000000102' 
 
IB113 DLS Incapacity for work form received (finding) 
14111000000105' 
 
IB113 DLS Incapacity for work form completed (finding) 
835611000000109' 
 
Employment and support allowance status (finding) 
835641000000105' 
 
Employment and support allowance 113 form completed (finding) 
835711000000103' 
 
Employment and support allowance 113 form paid (finding) 
835691000000100' 
 
Employment and support allowance 113 form received (finding) 
835671000000104' 
 
Employment and support allowance 113 form sent (finding) 
957481000000103' 
 
Not in employment, education or training (finding) 
Absence from work 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
IBD symptoms - abdominal pain 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
IBD symptoms – discomforts or bloating 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 

 
 
87 
 
SNOMED Code 
Term ID 
Description 
IBD symptoms - diarrhoea 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
IBD symptoms - weight loss 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
IBD symptoms - tiredness/fatigue 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Growth retardation related codes 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
 
 

 
 
88 
 
sTable 3.2 Read and SNOMED codes to be used to identify the severity of IBD 
Medication use 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Surgical intervention 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Hospital admissions 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description 
Nutritional supplements (Modulen, Fortisip, Ensure, Osmolite, and Neocate) 
Read V2 Code 
Term ID 
Description 
Read CTV3 Code 
Term ID 
Description 
SNOMED Code 
Term ID 
Description