{"schemaVersion":"1.0","id":"nhs-diagnostic-activity-by-test","dataset":"nhs-diagnostic-activity-by-test","title":"Diagnostic activity and waiting lists","description":"Monthly tests and procedures beside the number still waiting, for all 15 DM01 categories.","methodology":"Total monthly activity and end-of-month waiting list from the latest DM01 provider extract, summed across active London trusts. The two are flows and stocks respectively, so their sizes can be compared but must not be subtracted. Provider location is not patient residence.","category":"nhs","categoryLabel":"NHS","cadence":"monthly","placeholder":false,"landingPage":"https://londongraph.com/g/nhs-diagnostic-activity-by-test","markdown":"https://londongraph.com/g/nhs-diagnostic-activity-by-test/index.html.md","source":{"name":"NHS England","url":"https://www.england.nhs.uk/statistics/statistical-work-areas/diagnostics-waiting-times-and-activity/monthly-diagnostics-waiting-times-and-activity/","licence":"Open Government Licence v3.0","licenceUrl":"https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/"},"updatedAt":"2026-08-01T23:45:26.911Z","release":{"label":"DM01-MAY-2026","publishedAt":"2026-05-31T00:00:00.000Z","resourceUrl":"https://www.england.nhs.uk/statistics/wp-content/uploads/sites/2/2026/07/DM01-MAY-2026-full-extract_8BN1G.zip","methodologyUrl":"https://www.england.nhs.uk/statistics/statistical-work-areas/diagnostics-waiting-times-and-activity/monthly-diagnostics-waiting-times-and-activity/","sha256":"56e9e1ad552f368d3512618abbdcd6bc9189f995e2dd3f579ec4af9cdd8d1c0d"},"observations":[{"series":"Monthly activity","buckets":["Urodynamics","Peripheral Neurophys","Audiology Assessments","Electrophysiology","Sleep Studies","Cystoscopy","Barium Enema","Colonoscopy","Flexi Sigmoidoscopy","Gastroscopy","MRI","Non Obstetric Ultrasound","Echocardiography","DEXA Scan","CT"],"values":[1503,3345,11502,226,4006,4474,1074,7371,1575,8357,74556,129024,35018,8014,130945],"unit":"tests or procedures · DM01-MAY-2026","metadata":[{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]}]},{"series":"Waiting list","buckets":["Urodynamics","Peripheral Neurophys","Audiology Assessments","Electrophysiology","Sleep Studies","Cystoscopy","Barium Enema","Colonoscopy","Flexi Sigmoidoscopy","Gastroscopy","MRI","Non Obstetric Ultrasound","Echocardiography","DEXA Scan","CT"],"values":[2572,6872,15605,77,7710,4140,1731,13998,3222,12620,62211,123973,26626,11655,34298],"unit":"tests or procedures · DM01-MAY-2026","metadata":[{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]},{"flags":["provisional"]}]}],"areaStatistics":null,"visualizations":[{"id":"overview","label":"Overview","description":"Monthly tests and procedures beside the number still waiting, for all 15 DM01 categories.","url":"https://londongraph.com/g/nhs-diagnostic-activity-by-test","renderer":"primary","default":true,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"distribution","label":"Distribution","description":"Show every published value around the median and quartiles.","url":"https://londongraph.com/g/nhs-diagnostic-activity-by-test?view=distribution","renderer":"distribution","default":false,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null}],"availability":"observations","note":"The release is complete for the measures represented on the graph page."}