From a94ab68b5961e44f284bc3dfb81b179a5918d5f5 Mon Sep 17 00:00:00 2001 From: Jon Massey Date: Fri, 4 Sep 2026 11:34:14 +0100 Subject: [PATCH] HES/SUS ICD-10 "X" padding --- docs/data-sources/apc.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/docs/data-sources/apc.md b/docs/data-sources/apc.md index df6113f5..9d765f10 100644 --- a/docs/data-sources/apc.md +++ b/docs/data-sources/apc.md @@ -38,6 +38,12 @@ The dataset does not include any patients who have not been discharged (i.e., pa - The post-transfer spell may have additional diagnoses or procedures of interest so it is often useful to include them. - Transfers may occasionally come from private hospitals where a patient's condition worsened to require e.g. intensive care; if the initial spell was not NHS funded we would probably not have the original spell in our data. +### \* Notes on ICD-10 codes: + +Diagnosis codes in the APCS dataset use the ICD-10 coding system in a slightly non-standard manner: +three-character ICD-10 codes in the APCS dataset are padded to four characters with a terminal `X` character. + + ## Reference tables ### Admission method reference table