: Data-Field 41280

Data-Field 41280

Description:	Date of first in-patient diagnosis - ICD10
Category:	Health outcomes ⏵ Externally sourced health outcomes ⏵ Hospital inpatient ⏵ Summary Diagnoses
	Health outcomes

Participants

448,651

Date

Both sexes

Jan 2019

7,276,575

Data

Singular

Aug 2025

Ongoing

Primary

Yes (259)

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Data

7,276,575 items of data are available, covering 448,651 participants.
Array indices run from 0 to 258.

Maximum	2023-03-31
Decile 9	2021-12-23
Decile 8	2020-09-01
Decile 7	2019-03-12
Decile 6	2017-09-20
Median	2015-12-17
Decile 4	2013-12-12
Decile 3	2011-08-02
Decile 2	2008-07-28
Decile 1	2003-12-14
Minimum	1992-03-31

There are 10191 distinct values.
Mean = 2014-06-05

Notes

This field provides, for each participant, the date each ICD-10 diagnosis code was first recorded in either the primary or secondary position in the participant's hospital inpatient records (in the field DIAG_ICD10 in the HESIN_DIAG table).

The date given is the episode start date (the EPISTART field on the HESIN table), or if this was missing the admission date (the ADMIDATE field on the HESIN table). See the Inpatient data Dictionary (Resource 141140) in Category 2000 for information about the HESIN and HESIN_DIAG tables.

The corresponding ICD-10 diagnosis codes can be found in data-field Field 41270 and the two fields can be linked using the array structure.

1 Related Data-Field

Field ID	Description	Relationship
41270	Diagnoses - ICD10	Current Field is the date of first diagnosis of Field 41270

0 Resources

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