These codes will capture both community- and hospital-acquired pneumonia. These codes are not intended to be mandatory, but are to be used as a starting point for the identification of pneumonia in routine EHR. Each study may differ in the sensitivity and specificity of the coding required.
Defining a community-acquired pneumonia occurrence in CPRD and HES, Millett et al. 2013 used the following algorithm:
1) Pneumonia records wtihin 28 days of each other were considered to be separate consultations for the same illness
2) First record of pneumonia was the index date
3) End of a pneumonia occurrence was defined as 28 days after the last pneumonia code within the illness episode
4) In HES, pneumonia coded as the primary diagnosis on the first day of a hospital admission
Defining a hospital-acquired pneumonia occurrence in HES and CPRD, Millett et al. 2013 used the following algorithm:
1) Pneumonia coded at any time beyond the first day of a hospital admission
2) Using CPRD in conjunction with HES, pneumonia coded in CPRD within 14 days of a hospital admission (for any cause) was deemed hospital-acquired
3) In CPRD, use of a hospital-acquired pneumonia code at any time during the pneumonia occurrence
Millett, E. R., Quint, J. K., Smeeth, L., Daniel, R. M., & Thomas, S. L. (2013). Incidence of community-acquired lower respiratory tract infections and pneumonia among older adults in the United Kingdom: a population-based study. PLoS One, 8(9), e75131. doi:10.1371/journal.pone.0075131
Defining a community-acquired pneumonia resulting in hospitalisation occurrence in HES, Hicks et al. 2016 used the following algorithm:
1) In HES, hospital admission following A&E visit, where pneumonia was coded as the primary diagnosis within two days of admission
Defining a hospital-acquired pneumonia occurrence in CPRD and HES, Hicks et al. 2016 used the following algorithm:
1) Pneumonia diagnosis in HES >2 days after hospital admission
2) Pneumonia diagnosed in CPRD within 7 days after hospital discharge
Hicks, B. M., Yin, H., Bladou, F., Ernst, P., & Azoulay, L. (2017). Androgen deprivation therapy for prostate cancer and the risk of hospitalisation for community-acquired pneumonia. Thorax, 72(7), 596-597. doi:10.1136/thoraxjnl-2016-209512
Defining a hospital-acquired respiratory infection including pneumonia occcurence using ICD-10 codes, Timmers et al. 2020 used the following algorithm:
1) The main diagnosis of acute hospital admission records, excluding any secondary diagnoses, was used to classify records into disease categories, which corresponded to disease blocks as described in the chapters of ICD-10.
2) Mortality trends were modelled using morbidity trends: we first determined the major disease categories (ICD-10 blocks) associated with the most lives lost.
Timmers PRHJ, Kerssens JJ, Minton J, Grant I, Wilson JF, Campbell H, Fischbacher CM, Joshi PK. Trends in disease incidence and survival and their effect on mortality in Scotland: nationwide cohort study of linked hospital admission and death records 2001-2016. BMJ Open. 2020 Mar 25;10(3):e034299. doi: 10.1136/bmjopen-2019-034299. PMID: 32217562; PMCID: PMC7170664.
Defining a hospital-acquired respiratory infection including pneumonia occcurence using ICD-10 codes, Brunner-La Rocca et al. 2020 used the following algorithm:
1) Both bespoke chronic diseases (ICD-classification) and Clinical Classification Software (CCS) codes were used to define bacterial pneumonia as index hospitalisation.
Brunner-La Rocca HP, Peden CJ, Soong J, Holman PA, Bogdanovskaya M, Barclay L. Reasons for readmission after hospital discharge in patients with chronic diseases-Information from an international dataset. PLoS One. 2020 Jun 30;15(6):e0233457. doi: 10.1371/journal.pone.0233457. PMID: 32603361; PMCID: PMC7326238.
Defining a hospital-acquired respiratory infection including pneumonia occcurence using ICD-10 codes, Reynurn et al. 2020 used the following algorithm:
1) all-cause pneumonia (which is highly sensitive but not specific), and three clinical definitions based on WHO definitions of severe or very severe pneumonia, hypoxic pneumonia (which indicates severe disease and is the main cause for pneumonia-associated death), and radiological pneumonia
2) All-cause pneumonia included ICD-10 codes J10·0–18·9, J21, and J22. Bronchiolitis (ICD-10 code J21) was included because clinicians in Fiji code pneumonia according to Integrated Management of Childhood Illnesses definitions (cough and breathing rate, according to age) and this includes bronchiolitis.
3) Severe or very severe pneumonia was based on the WHO 2005 pneumonia case definitions10 with the addition of oxygen saturation of less than 90% in room air, or death due to pneumonia (confirmed by a pathologist at autopsy).
4) Hypoxic pneumonia was defined as any child with pneumonia and oxygen saturation of less than 90% in room air, or death due to pneumonia.
5) Radiological pneumonia was defined as primary endpoint consolidation according to the WHO 2005 standard case definition as re-read by a paediatric radiologist (MdC). Individuals with pneumonia who died from pneumonia before having a chest radiograph taken were also classified as having radiological pneumonia.
Reyburn R, Tuivaga E, Nguyen CD, Ratu FT, Nand D, Kado J, Tikoduadua L, Jenkins K, de Campo M, Kama M, Devi R, Rafai E, Weinberger DM, Mulholland EK, Russell FM. Effect of ten-valent pneumococcal conjugate vaccine introduction on pneumonia hospital admissions in Fiji: a time-series analysis. Lancet Glob Health. 2021 Jan;9(1):e91-e98. doi: 10.1016/S2214-109X(20)30421-6. Epub 2020 Nov 20. PMID: 33227258.
Defining a community-acquired pneumonia resulting in hospitalisation occurrence, Lawrence et al. 2020 used the following algorithm:
1) Cases were identified by participating institutions via ICD10 codes mapping to a primary discharge diagnosis of pneumonia (J12.0–J18.0) and selected for eligibility against inclusion criteria to confirm a clinical and radiographic diagnosis of Community-Acquired Pneumonia (CAP).
Lawrence H, McKeever TM, Lim WS; British Thoracic Society. Admission to hospital in the UK at a weekend does not influence the prognosis of adults with community-acquired pneumonia. Thorax. 2020 Jul;75(7):594-596. doi: 10.1136/thoraxjnl-2019-214318. Epub 2020 Mar 31. PMID: 32234807.
Not found code search
Publications between 2013-2019 identifying pneumonia in CPRD and/or HES
Millett, E. R., Quint, J. K., Smeeth, L., Daniel, R. M., & Thomas, S. L. (2013). Incidence of community-acquired lower respiratory tract infections and pneumonia among older adults in the United Kingdom: a population-based study. PLoS One, 8(9), e75131. doi:10.1371/journal.pone.0075131
Braeken, D. C., Rohde, G. G., Franssen, F. M., Driessen, J. H., van Staa, T. P., Souverein, P. C., . . . de Vries, F. (2017). Risk of community-acquired pneumonia in chronic obstructive pulmonary disease stratified by smoking status: a population-based cohort study in the United Kingdom. Int J Chron Obstruct Pulmon Dis, 12, 2425-2432. doi:10.2147/COPD.S138435
Hicks, B. M., Yin, H., Bladou, F., Ernst, P., & Azoulay, L. (2017). Androgen deprivation therapy for prostate cancer and the risk of hospitalisation for community-acquired pneumonia. Thorax, 72(7), 596-597. doi:10.1136/thoraxjnl-2016-209512
Sun, X., Douiri, A., & Gulliford, M. (2019). Pneumonia incidence trends in UK primary care from 2002 to 2017: population-based cohort study. Epidemiol Infect, 147, e263. doi:10.1017/S0950268819001559
Publications in 2020-2021 identified in PubMed
Timmers PRHJ, Kerssens JJ, Minton J, et al. (2020). Trends in disease incidence and survival and their effect on mortality in Scotland: nationwide cohort study of linked hospital admission and death records 2001–2016. BMJ Open 2020;10:e034299. doi: 10.1136/bmjopen-2019-034299
Brunner-La Rocca HP, Peden CJ, Soong J, Holman PA, Bogdanovskaya M, et al. (2020) Reasons for readmission after hospital discharge in patients with chronic diseases—Information from an international dataset. PLOS ONE 15(6): e0233457. https://doi.org/10.1371/journal.pone.0233457
Reyburn R, Tuivaga E, Nguyen CD, Ratu FT, Nand D, Kado J, Tikoduadua L, Jenkins K, de Campo M, Kama M, Devi R, Rafai E, Weinberger DM, Mulholland EK, Russell FM. Effect of ten-valent pneumococcal conjugate vaccine introduction on pneumonia hospital admissions in Fiji: a time-series analysis. Lancet Glob Health. 2021 Jan;9(1):e91-e98. doi: 10.1016/S2214-109X(20)30421-6. Epub 2020 Nov 20. PMID: 33227258.
Lawrence H, McKeever TM, Lim WS; British Thoracic Society. Admission to hospital in the UK at a weekend does not influence the prognosis of adults with community-acquired pneumonia. Thorax. 2020 Jul;75(7):594-596. doi: 10.1136/thoraxjnl-2019-214318. Epub 2020 Mar 31. PMID: 32234807.
Mesalles-Naranjo O, Grant I, Wyper GMA, et al. Trends and inequalities in the burden of mortality in Scotland 2000–2015. PLoS One 2018
Bennett JE, Pearson-Stuttard J, Kontis V, et al. Contributions of diseases and injuries to widening life expectancy inequalities in England from 2001 to 2016: a population-based analysis of vital registration data. Lancet Public Health 2018
Code repositories
ID- Manchester Clinical Codes 52 - Repository- Manchester ClinicalCodes - Description- Risks of smoking and benefits of smoking cessation on hospitalisations for cardiovascular events and respiratory infection in patients with rheumatoid arthritis: a retrospective cohort study using the Clinical Practice Research Datalink - Conditions- Respiratory tract infection - Publication- https://doi.org/10.1136/rmdopen-2017-000506 - Clinical codes- ICD-10
ID- Manchester Clinical Codes 42 - Repository- Manchester ClinicalCodes - Description- Smoking-related mortality in patients with early rheumatoid arthritis – a retrospective cohort study using the Clinical Practice Research Datalink - Conditions- Respiratory tract infection - Publication- https://doi.org/10.1002/acr.22882 - Clinical codes- ICD-10
ID- HDR UK National Phenomics Resource Project (aspiration pneumonitis) - Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- Aspiration pneumonitis - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- Read Version 2 & ICD-10
ID- HDR UK National Phenomics Resource Project (bacterial diseases, excl TB) - Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- Bacterial diseases (excl TB) - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- ICD-10
ID- HDR UK National Phenomics Resource Project (LRTI) - Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- Lower respiratory tract infections - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- ICD-10
ID- HDR UK National Phenomics Resource Project (other/unspecified infectious organisms) - Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- Other or unspecified infectious organisms - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- ICD-10
ID- HDR UK National Phenomics Resource Project (TB) - Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- TB - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- Read Version 2 & ICD-10
ID- HDR UK National Phenomics Resource Project (viral diseases, excl hepatitis/HIV) - Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- Viral diseases (excl chronic hepatitis/HIV) - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- ICD-10
ID- HDR UK National Phenomics Resource Project (pneumonia, 10.1371) - Repository- HDR UK National Phenomics Resource Project - Description- Incidence of Community-Acquired Lower Respiratory Tract Infections and Pneumonia among Older Adults in the United Kingdom: A Population-Based Study - Conditions- Pneumonia - Publication- https://doi.org/10.1371/journal.pone.0075131 - Clinical codes- Read Version 2 SNOMED-CT ICD-10 ICD-11 UK Biobank
ID- HDR UK National Phenomics Resource Project (pneumonia, 10.2147) - Repository- HDR UK National Phenomics Resource Project - Description- Risk of community-acquired pneumonia in chronic obstructive pulmonary disease stratified by smoking status: a population-based cohort study in the United Kingdom - Conditions- Pneumonia - Publication- https://doi.org/10.2147/COPD.S138435 - Clinical codes-
ID- HDR UK National Phenomics Resource Project (pneumonia, 10.1136) - Repository- HDR UK National Phenomics Resource Project - Description- Androgen deprivation therapy for prostate cancer and the risk of hospitalisation for community-acquired pneumonia - Conditions- Pneumonia - Publication- http://dx.doi.org/10.1136/thoraxjnl-2016-209512 - Clinical codes-
ID- HDR UK National Phenomics Resource Project (pneumonia, 10.1017) - Repository- HDR UK National Phenomics Resource Project - Description- Pneumonia incidence trends in UK primary care from 2002 to 2017: population-based cohort study - Conditions- Pneumonia - Publication- https://doi.org/10.1017/S0950268819001559 - Clinical codes-
ID- OpenSAFELY (2020-05-18) - Repository- OpenSAFELY - Description- Codes indicating a diagnosis of influenza or influenza-like illness - Conditions- Documented influenza illness - Publication- - Clinical codes- CTV3 (Read V3) with TPP extensions
ID- OpenSAFELY (2020-05-19) - Repository- OpenSAFELY - Description- Codes indicating a diagnosis of a lower respiratory tract infection excluding pneumonia - Conditions- Lower respiratory tract infection - Publication- - Clinical codes- CTV3 (Read V3) with TPP extensions
ID- OpenSAFELY (2020-05-10) - Repository- OpenSAFELY - Description- Pneumonia ICD-10 codes - Conditions- Pneumonia secondary care - Publication- - Clinical codes- ICD-10
ID- OpenSAFELY (2020-07-16) - Repository- OpenSAFELY - Description- Codes indicating COVID-19 case (1 of 13 possible types of CTV3 codes that contain information related to COVID-19) - Conditions- COVID identification in primary care - probable covid - sequelae - Publication- - Clinical codes- CTV3 (Read V3)
ID- LSHTM Data Compass (2049) - Repository- LSHTM Data Compass - Description- Read codes for lower respiratory tract infections - Conditions- Lower respiratory tract infection - Publication- https://doi.org/10.17037/DATA.00002049 - Clinical codes- CPRD GOLD Medcodes
ID- LSHTM Data Compass (2050) - Repository- LSHTM Data Compass - Description- ICD-10 codes for lower respiratory tract infections - Conditions- Lower respiratory tract infection - Publication- https://doi.org/10.17037/DATA.00002050 - Clinical codes- ICD-10
ID- LSHTM Data Compass (0847) - Repository- LSHTM Data Compass - Description- ICD-10 codes for pneumonia - Conditions- Pneumonia - Publication- https://doi.org/10.17037/DATA.00000847 - Clinical codes- ICD-10
ID- LSHTM Data Compass (1654) - Repository- LSHTM Data Compass - Description- Read codes and terms used for pneumonia (CPRD) - Conditions- Pneumonia - Publication- https://doi.org/10.17037/DATA.00001654 - Clinical codes- Read Version 2 & CPRD GOLD Medcodes
ID- Oxford-RCGP RSC - Repository- Oxford-RCGP RSC - Description- Surveillance & acute pathways of care theme - Conditions- PneumoniaOrPneumonitis-WRpt - Publication- - Clinical codes-
| Code | Description | BREATHE recommended | OpenSAFELY (2020-05-18) | OpenSAFELY (2020-05-19) | OpenSAFELY (2020-07-16) |
|---|---|---|---|---|---|
| H2... | Pneumonia and influenza | Y | Y | Y | |
| H20.. | Viral pneumonia (& chest infection) | Y | |||
| H202. | Parainfluenzal pneumonia | Y | Y | Y | |
| H270. | Influenzal pneumonia | Y | Y | Y | |
| H2700 | Influenza with bronchopneumonia | Y | Y | Y | |
| H2701 | Influenza with pneumonia, influenza virus identified | Y | Y | Y | |
| H270z | Influenza with pneumonia NOS | Y | Y | Y | |
| H2y.. | Other specified pneumonia or influenza | Y | Y | ||
| H2z.. | Pneumonia or influenza NOS | Y | Y | ||
| XE0ZF | Pneumonia and influenza &/or pneumonia | Y | Y | ||
| XaeVN | Influenza with pneumonia due to seasonal influenza virus | Y | Y | Y | |
| Y210a | Pneumonia caused by severe acute respiratory syndrome coronavirus 2 (disorder) | Y | Y |
| Code | Description | SNOMED CT Concept ID | SNOMED CT Description ID | Read v2 | BREATHE recommended | HDR UK National Phenomics Resource Project (pneumonia, 10.1371 to 10.1017) |
|---|---|---|---|---|---|---|
| 107173015 | Pneumonia due to Klebsiella pneumoniae | 64479007 | 107173015 | H220.00 | Y | Y |
| 1216638013 | Pneumonia with tularaemia | 45556008 | 1216638013 | H244.00 | Y | |
| 1219703018 | Pneumonia with aspergillosis | 111900000 | 1219703018 | H246.00 | Y | |
| 12220811000006115 | Pneumonia co-occurrent and due to measles | 195900001 | 3657855014 | Y | ||
| 1222332017 | Chest infection - other bacterial pneumonia | 53084003 | 88303013 | H22..11 | Y | Y |
| 1222333010 | Chest infection - pneumonia organism OS | 312342009 | 456043010 | H23..11 | Y | Y |
| 1229740013 | Influenza with bronchopneumonia | 41269000 | 1229740013 | H270000 | Y | |
| 1231962012 | Pneumonia with pertussis | 59475000 | 1231962012 | H243.11 | Y | |
| 1231963019 | Pneumonia with whooping cough | 59475000 | 1231963019 | H243.00 | Y | Y |
| 1232627018 | Pneumonia due to parainfluenza virus | 64917006 | 499984015 | H202.00 | Y | Y |
| 125510013 | Viral pneumonia | 75570004 | 125510013 | H20..00 | Y | Y |
| 12652015 | Gangrenous pneumonia | 7063008 | 12652015 | H530200 | Y | |
| 12721231000006111 | Pneumonia or influenza NOS | 540151000000108 | 1204911000000119 | Y | ||
| 12728461000006112 | Pneumonia due to unspecified organism | 616141000000106 | 1361421000000111 | Y | ||
| 12728631000006117 | Bronchopneumonia due to unspecified organism | 689401000000108 | 1508941000000117 | Y | ||
| 12990651000006112 | Pneumonia caused by 2019-nCoV (novel coronavirus) | 1240551000000105 | 2807991000000111 | Y | ||
| 12990661000006114 | Pneumonia caused by Wuhan 2019-nCoV (novel coronavirus) | 1240551000000105 | 2808011000000117 | Y | ||
| 12990671000006119 | Pneumonia caused by 2019 novel coronavirus | 1240551000000105 | 2808851000000112 | Y | ||
| 13012271000006118 | Pneumonia caused by SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) | 1240551000000105 | 2827631000000110 | Y | ||
| 1479355018 | Community acquired pneumonia | 385093006 | 1479355018 | H2B..00 | Y | Y |
| 1576341000006118 | Cause of Death- Bronchopneumonia | 1576341000006102 | 1576341000006118 | Y | ||
| 1760561000006116 | Streptococcus pneumoniae | 9861002 | 17213012 | Y | ||
| 1772681000006119 | Lobar pneumonia | 278516003 | 1772681000006119 | Y | ||
| 1772691000006116 | Left upper zone pneumonia | 301002002 | 442225010 | Y | Y | |
| 1772701000006116 | Lingular pneumonia | 426696003 | 2674103016 | Y | ||
| 1772711000006118 | Basal pneumonia | 300999006 | 1772711000006118 | Y | ||
| 1772721000006114 | Bilateral basal pneumonia | 425996009 | 2674104010 | Y | ||
| 1772731000006112 | Left lower zone pneumonia | 301000005 | 442217013 | Y | Y | |
| 1772741000006119 | Right lower zone pneumonia | 301001009 | 442218015 | Y | Y | |
| 1772751000006117 | Right middle zone pneumonia | 301003007 | 442226011 | Y | Y | |
| 1772761000006115 | Right upper zone pneumonia | 301004001 | 442232018 | Y | Y | |
| 1772771000006110 | Bronchopneumonia | 396285007 | 1772771000006110 | Y | Y | |
| 1787121000006116 | Community acquired pneumonia | 385093006 | 1787121000006116 | Y | ||
| 2164029012 | Pneumonia due to Mycoplasma pneumoniae | 46970008 | 494705012 | H231.00 | Y | Y |
| 219761000006111 | Pneumonia - candidal | 3487004 | 6881018 | AB24.11 | Y | |
| 219771000006116 | Pneumonia - Legionella | 195889001 | 301372014 | H22y200 | Y | Y |
| 219801000006119 | Pneumonia due to adenovirus | 41207000 | 68738015 | H200.00 | Y | |
| 219841000006117 | Pneumonia due to haemophilus influenzae | 70036007 | 116320011 | H222.00 | Y | Y |
| 219851000006115 | Pneumonia due to haemophilus influenzae | 70036007 | 116320011 | H222.11 | Y | Y |
| 219881000006111 | Pneumonia due to other aerobic gram-negative bacteria | 53084003 | 88303013 | H22yX00 | Y | Y |
| 219921000006115 | Pneumonia due to pleuropneumonia like organisms | 195896004 | 301380019 | H232.00 | Y | Y |
| 219931000006117 | Pneumonia due to proteus | 195888009 | 301371019 | H22y100 | Y | Y |
| 219971000006119 | Pneumonia due to staphylococcus | 22754005 | 38198016 | H224.00 | Y | Y |
| 219991000006118 | Pneumonia due to streptococcus, group B | 195886008 | 301369019 | H223000 | Y | Y |
| 220021000006118 | Pneumonia with actinomycosis | 195908008 | 301395017 | H24y000 | Y | Y |
| 220051000006110 | Pneumonia with candidiasis | 3487004 | 6881018 | H247000 | Y | |
| 220071000006117 | Pneumonia with cytomegalic inclusion disease | 7678002 | 13688018 | H241.00 | Y | |
| 220111000006113 | Pneumonia with measles | 195900001 | 301386013 | H240.00 | Y | Y |
| 220131000006119 | Pneumonia with ornithosis | 81164001 | 134668017 | H242.00 | Y | |
| 220181000006118 | Pneumonia with pneumocystis carinii | 415125002 | 2533522015 | H24y200 | Y | |
| 220191000006115 | Pneumonia with Q-fever | 32286006 | 1227932015 | H24y300 | Y | |
| 220201000006117 | Pneumonia with salmonellosis | 2523007 | 5303018 | H24y400 | Y | |
| 220241000006115 | Pneumonia with typhoid fever | 45312009 | 1230217011 | H24y600 | Y | |
| 220251000006118 | Pneumonia with varicella | 195911009 | 301399011 | H24y700 | Y | Y |
| 2622071000006116 | Cytomegaloviral pneumonia | 7678002 | 13688018 | Y | ||
| 2622081000006118 | Cytomegalic inclusion virus pneumonia | 7678002 | 13689014 | Y | ||
| 2622101000006114 | Cytomegaloviral (CMV) pneumonia | 7678002 | 3028104014 | Y | ||
| 2657031000006118 | Pneumococcus | 9861002 | 17215017 | Y | ||
| 2872480010 | Pneumonia due to Human metapneumovirus | 445096001 | 2872480010 | H203.00 | Y | |
| 294997017 | Postmeasles pneumonia | 191727003 | 294997017 | A551.00 | Y | Y |
| 301357010 | Pneumonia and influenza | 195878008 | 301357010 | H2...00 | Y | Y |
| 301362011 | Pneumonia due to respiratory syncytial virus | 195881003 | 301362011 | H201.00 | Y | Y |
| 301363018 | Viral pneumonia NEC | 75570004 | 125510013 | H20y.00 | Y | Y |
| 301364012 | Viral pneumonia NOS | 75570004 | 125510013 | H20z.00 | Y | |
| 301368010 | Other bacterial pneumonia | 53084003 | 88303013 | H22..00 | Y | Y |
| 301370018 | Pneumonia due to other specified bacteria | 53084003 | 88303013 | H22y.00 | Y | Y |
| 301375011 | Pneumonia due to bacteria NOS | 53084003 | 88303013 | H22yz00 | Y | Y |
| 301376012 | Bacterial pneumonia NOS | 53084003 | 88303013 | H22z.00 | Y | |
| 301377015 | Pneumonia due to other specified organisms | 312342009 | 456043010 | H23..00 | Y | Y |
| 301382010 | Pneumonia due to specified organism NOS | 312342009 | 456043010 | H23z.00 | Y | Y |
| 301386013 | Measles pneumonia | 195900001 | 301386013 | H240.99 | Y | Y |
| 301389018 | Pneumonia with anthrax | 195902009 | 301389018 | H245.00 | Y | |
| 301390010 | Pneumonia with other systemic mycoses | 312342009 | 456043010 | H247.00 | Y | |
| 301391014 | Pneumonia with coccidioidomycosis | 195904005 | 301391014 | H247100 | Y | |
| 301392019 | Pneumonia with histoplasmosis | 38699009 | 64397019 | H247200 | Y | |
| 301393012 | Pneumonia with systemic mycosis NOS | 233613009 | 350060013 | H247z00 | Y | |
| 301394018 | Pneumonia with other infectious diseases EC | 312342009 | 456043010 | H24y.00 | Y | |
| 301397013 | Pneumonia with nocardiasis | 195909000 | 301397013 | H24y100 | Y | |
| 301403019 | Pneumonia with other infectious diseases EC NOS | 312342009 | 456043010 | H24yz00 | Y | Y |
| 301404013 | Pneumonia with infectious diseases EC NOS | 312342009 | 456043010 | H24z.00 | Y | Y |
| 301408011 | Pneumonia due to unspecified organism | 312342009 | 456043010 | H26..00 | Y | Y |
| 301409015 | Lobar pneumonia due to unspecified organism | 278516003 | 415454018 | H260.00 | Y | Y |
| 301413010 | Influenza with pneumonia, influenza virus identified | 195878008 | 301357010 | H270100 | Y | Y |
| 301414016 | Influenza with pneumonia NOS | 195878008 | 301357010 | H270z00 | Y | |
| 301430012 | Other specified pneumonia or influenza | 195878008 | 301357010 | H2y..00 | Y | Y |
| 301431011 | Pneumonia or influenza NOS | 195878008 | 301357010 | H2z..00 | Y | Y |
| 301809014 | [X]Other viral pneumonia | 75570004 | 125510013 | Hyu0800 | Y | Y |
| 301810016 | [X]Pneumonia due to other aerobic gram-negative bacteria | 53084003 | 88303013 | Hyu0900 | Y | |
| 301811017 | [X]Other bacterial pneumonia | 53084003 | 88303013 | Hyu0A00 | Y | Y |
| 301812012 | [X]Pneumonia due to other specified infectious organisms | 312342009 | 456043010 | Hyu0B00 | Y | Y |
| 301813019 | [X]Pneumonia in bacterial diseases classified elsewhere | 53084003 | 88303013 | Hyu0C00 | Y | |
| 301814013 | [X]Pneumonia in viral diseases classified elsewhere | 75570004 | 125510013 | Hyu0D00 | Y | |
| 301815014 | [X]Pneumonia in mycoses classified elsewhere | 233613009 | 350060013 | Hyu0E00 | Y | |
| 301816010 | [X]Pneumonia in parasitic diseases classified elsewhere | 233620002 | 350068018 | Hyu0F00 | Y | |
| 301817018 | [X]Pneumonia in other diseases classified elsewhere | 233604007 | 350049016 | Hyu0G00 | Y | |
| 301818011 | [X]Other pneumonia, organism unspecified | 312342009 | 456043010 | Hyu0H00 | Y | Y |
| 3020151000006113 | Pneumonia in Q fever | 32286006 | 53938010 | Y | ||
| 3020161000006110 | Q fever pneumonia | 32286006 | 1227932015 | Y | ||
| 3047811000006116 | Pneumonia due to Streptococcus | 34020007 | 56816017 | Y | ||
| 3047831000006110 | Pneumonia caused by Streptococcus | 34020007 | 3293089013 | Y | ||
| 3163841000006112 | Adenoviral pneumonia | 41207000 | 68738015 | Y | ||
| 3164871000006118 | Influenzal bronchopneumonia | 41269000 | 68835014 | Y | ||
| 3166801000006115 | Pneumonia due to Pseudomonas | 41381004 | 69026013 | Y | ||
| 3166821000006113 | Pneumonia caused by Pseudomonas | 41381004 | 3291859012 | Y | ||
| 3231031000006117 | Pneumonia in typhoid fever | 45312009 | 75542017 | Y | ||
| 3231041000006110 | Typhoid pneumonia | 45312009 | 1230217011 | Y | ||
| 3246511000006114 | Toxoplasma pneumonia | 46207001 | 494464010 | Y | ||
| 3259071000006116 | Primary atypical pneumonia due to Mycoplasma pneumoniae | 46970008 | 78273018 | Y | ||
| 3259081000006118 | PAP due to Mycoplasma pneumoniae | 46970008 | 78274012 | Y | ||
| 3259111000006112 | Pneumonia due to PPLO | 46970008 | 494703017 | Y | ||
| 3259121000006116 | Mycoplasma pneumoniae pneumonia | 46970008 | 494704011 | Y | Y | |
| 3259151000006113 | Eaton's agent pneumonia | 46970008 | 2647119013 | Y | ||
| 3259161000006110 | Pneumonia caused by Mycoplasma pneumoniae | 46970008 | 3290783016 | Y | ||
| 3259171000006115 | Primary atypical pneumonia caused by Mycoplasma pneumoniae | 46970008 | 3291308017 | Y | ||
| 3334901000006115 | Pneumonia due to Escherichia coli | 51530003 | 2671161016 | Y | ||
| 3334911000006117 | Pneumonia due to E. coli | 51530003 | 85822014 | Y | ||
| 3334931000006111 | Pneumonia caused by E. coli | 51530003 | 3291083015 | Y | ||
| 3334941000006118 | Pneumonia caused by Escherichia coli | 51530003 | 3293482014 | Y | ||
| 3465961000006115 | Pneumonia in pertussis | 59475000 | 98793016 | Y | ||
| 3465971000006110 | Pneumonia in whooping cough | 59475000 | 98794010 | Y | ||
| 350051017 | Atypical pneumonia | 233606009 | 350051017 | H28..00 | Y | Y |
| 350054013 | Chlamydial pneumonia | 233609002 | 350054013 | H233.00 | Y | Y |
| 350073012 | Herpes simplex pneumonia | 233624006 | 350073012 | A54x400 | Y | Y |
| 3548591000006113 | Pneumonia caused by Klebsiella pneumoniae | 64479007 | 3295403017 | Y | ||
| 3555871000006115 | Parainfluenza virus pneumonia | 64917006 | 107903018 | Y | ||
| 3555881000006117 | Parainfluenzal pneumonia | 64917006 | 499984015 | Y | ||
| 3555891000006119 | Pneumonia due to parainfluenza virus | 64917006 | 1232627018 | Y | Y | |
| 3555901000006115 | Parainfluenza pneumonia | 64917006 | 3035270018 | Y | ||
| 396104016 | Pneumonia with infectious diseases EC | 312342009 | 456043010 | H24..00 | Y | Y |
| 396105015 | Bronchopneumonia due to unspecified organism | 396285007 | 1776258010 | H25..00 | Y | Y |
| 399241000006111 | [X]Mycoplasma pneumoniae [PPLO]cause/dis classifd/oth chaptr | 406595002 | 2158243017 | AyuK900 | Y | Y |
| 4200921000006119 | Pneumonia in aspergillosis | 111900000 | 179053012 | Y | ||
| 4200931000006116 | Aspergillus pneumonia | 111900000 | 187903016 | Y | ||
| 437481000006113 | Abnormal pericardio-pleural communication | 204589003 | 313687013 | P8y0.00 | ||
| 4781131000006116 | Pneumonia caused by respiratory syncytial virus | 195881003 | 3291454010 | Y | ||
| 4781141000006114 | Group B streptococcal pneumonia | 195886008 | 301369019 | Y | ||
| 4781151000006111 | Proteus pneumonia | 195888009 | 301371019 | Y | ||
| 4781201000006119 | Pneumonia due to pleuropneumonia-like organism | 195896004 | 301380019 | Y | ||
| 4781211000006116 | Pneumonia caused by pleuropneumonia-like organism | 195896004 | 3292144017 | Y | ||
| 4781231000006110 | Anthrax pneumonia | 195902009 | 301388014 | Y | ||
| 4781261000006118 | Actinomycotic pneumonia | 195908008 | 301395017 | Y | ||
| 4781271000006113 | Nocardial pneumonia | 195909000 | 301396016 | Y | ||
| 4781311000006113 | Varicella pneumonia | 195911009 | 301401017 | Y | ||
| 4781321000006117 | Chicken pox pneumonia | 195911009 | 301402012 | Y | ||
| 494463016 | Pneumonia with toxoplasmosis | 46207001 | 494463016 | H24y500 | Y | |
| 5053451000006119 | Pneumonia caused by Chlamydiaceae | 233609002 | 3464418016 |